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    • 专利摘要:
    The present invention relates to a method for shaping and manufacturing a denture for a patient, where the denture comprises a gingival part and artificial teeth, wherein the method comprises: providing a 3D scan comprising at least part of the denture using 3D scanning; obtain virtual teeth to represent artificial teeth; model virtually at least one of the virtual teeth to obtain a set of modeled virtual teeth; manufacture virtual teeth modeled on a first material; manufacture the gingival part in a second material; and making at least part of the denture using computer aided manufacturing (CAM).
    公开号:BR112013007435B1
    申请号:R112013007435-3
    申请日:2011-09-30
    公开日:2021-01-12
    发明作者:Rune Fisker
    申请人:3Shape A/S；
    IPC主号:
    专利说明:

    [0001] [0001] The present invention relates to a method for shaping and manufacturing dentures for a patient. In particular, the invention relates to computer-implemented modeling. BACKGROUND OF THE INVENTION
    [0002] [0002] US2009287332 describes a system for making at least part of a denture. The system includes a three-dimensional scanning device for scanning a surface of a denture template, and a computer-readable medium including a computer program to receive data from the scanning device, create a three-dimensional model of the surface, and optionally modify the three-dimensional model and / or add features to the three-dimensional model. The system also includes a manufacturer to create at least part of the denture, from a selected material, based on the three-dimensional model. The manufacturer can be a device including a lathe, or a phototyping machine. A method for making at least part of a denture is also provided.
    [0003] [0003] US2007009852 describes a denture comprising a denture plate comprising a support member having an approximately U-shaped base, a lip wall extending from said base and a lingual wall extending from said base; said base, labial wall and lingual wall forming an approximate U-shaped cross section along an imaginary vertical plane to form a channel, and a deformable member extending through the channel to separate the channel into a receiving section of gingiva and an adjustment section; and, a false tooth assembly including a plurality of false teeth secured on said base.
    [0004] [0004] US2006040236 describes a method of creating a customized dental restoration for a patient's clinical needs comprising the steps of: preparing an existing dental structure for digital modeling in which existing dental structures may comprise implant anchors, soft tissue, jaw bone, existing teeth, and an existing denture, making a first three-dimensional digital model of dental restoration in which the first three-dimensional digital model comprises implant anchors, soft tissue shape, any existing teeth, and the planned position of one or more artificial teeth; create a second three-dimensional model of dental restoration in which the second three-dimensional digital model comprises a substructure to attach to the patient's existing dental structures and to retain artificial teeth; produce the substructures from the second three-dimensional digital model; position and hold the artificial teeth on the substructure; and securing the substructure to the patient's existing dental structures.
    [0005] [0005] It remains a problem to provide an improved method for modeling and manufacturing dentures. SUMMARY
    [0006] - fornecer uma varredura 3D compreendendo pelo menos parte da cavidade oral do paciente; - modelar virtualmente pelo menos parte da dentadura usando a varredura 3D; - obter dentes virtuais para representar os dentes artificiais; - modelar virtualmente pelo menos um dos dentes virtuais para obter um conjunto de dentes virtuais modelados; - fabricar os dentes virtuais modelados em um primeiro material; - fabricar a parte gengival em um segundo material; e - fabricar pelo menos parte da dentadura por meio de fabricação auxiliada por computador (CAM). [0006] A method to model and manufacture a denture for a patient is disbelieved, where the denture comprises a gengi-val part and artificial teeth, in which the method comprises the steps of: - provide a 3D scan comprising at least part of the patient's oral cavity; - model virtually at least part of the denture using 3D scanning; - obtain virtual teeth to represent artificial teeth; - model virtually at least one of the virtual teeth to obtain a set of modeled virtual teeth; - manufacture the virtual teeth modeled on a first material; - manufacture the gingival part in a second material; and - manufacture at least part of the denture by means of computer aided manufacturing (CAM).
    [0007] [0007] It is an advantage that virtual teeth representing artificial teeth and / or the gum can be modeled using a 3D scan comprising at least part of the patient's oral cavity. Furthermore, virtual teeth representing artificial teeth are modeled virtually before the dentures are manufactured. Artificial teeth can be selected from a number of virtual pre-engineered teeth, and these pre-engineered teeth can then be shaped to meet the patient and meet and satisfy the patient's requests and wants. Virtual teeth can correspond to real, physical, prefabricated artificial teeth. Thus, artificial teeth can be selected by the patient in the dental clinic either by viewing the physical artificial teeth in real life or by viewing the virtual pre-designed teeth corresponding to these physical teeth on a computer screen.
    [0008] [0008] It is also an advantage that the denture can be virtually modeled, as long as this can provide a higher quality denture, and the cost as well as the time required to make the denture can be reduced. Using a 3D scan comprising the patient's oral cavity the quality of the denture can also be improved. The 3D scan comprising at least part of the patient's oral cavity comprises any teeth still present in the mouth, and may be a 3D scan of an impression of the patient's teeth, may be a 3D scan of a physical model of the patient's teeth, and / or it can be a 3D scan done directly in the patient's mouth, that is, an intraoral scan.
    [0009] [0009] The provision of the 3D scan may mean acquiring a 3D scan by scanning, or retrieving the 3D scan from a digital file on a computer. 3D scanning can be obtained at the same time and place as modeling and fabrication are performed, or 3D scanning can be obtained separately from modeling. In addition, modeling and fabrication can be performed at the same physical location, or modeling and fabrication can be performed at different physical locations.
    [0010] [0010] Furthermore, the order in which the different steps are carried out may differ from the order above. However, logically, the modeling steps will be carried out before the manufacturing steps. However, the step of obtaining virtual teeth to represent artificial teeth can be, for example, performed before the step of shaping virtually at least part of the denture using 3D scanning.
    [0011] [0011] Artificial teeth can be indicated a part of denture teeth. As well as virtual teeth represent artificial teeth, a virtual gingival part can be defined to represent the gingival part of the denture.
    [0012] [0012] When making modeled virtual teeth, manufactured modeled teeth are obtained. Manufactured modeled virtual teeth can also be indicated.
    [0013] [0013] The virtual modeling of the dentures, in general, and the modeling of the virtual teeth and the gingival part in particular, are performed through computer aided design (CAD).
    [0014] - dentadura total; - dentadura parcial; - a dentadura compreende um ou mais implantes; - dentadura removível; - dentadura fixa; - dentadura parcial fixa; - dentadura parcial removível; - ponte com ou sem revestimento na forma de porcelana ou compósito; - barra com ou sem implantes, dentes artificiais, etc.; -prótese dentária, por exemplo, sobre uma barre ou sobre os dentes; - dentadura compreendendo ou sendo fixada a uma barra de implante, que é adaptada para ser fixada ao osso maxilar na boca de um paciente. [0014] There are many different types of dentures, such as: - total denture; - partial denture; - the denture comprises one or more implants; - removable denture; - fixed denture; - fixed partial denture; - removable partial denture; - bridge with or without coating in the form of porcelain or composite; - bar with or without implants, artificial teeth, etc .; -dental prosthesis, for example, on a bar or on the teeth; - denture comprising or being attached to an implant bar, which is adapted to be attached to the maxillary bone in a patient's mouth.
    [0015] [0015] Furthermore, the bar or bridge types can be standard types such as Dolder, Hader, Hybird, Canada, Wrap-around, Primary, etc., and bars and bridges can be free-form or custom design forms .
    [0016] [0016] Dentures are different from restorations or prostheses, because a denture replaces missing teeth, and there will thus be artificial teeth and artificial gum in a denture, in which a restoration, for example, in the form of a crown or a bridge will not comprise gingiva artificial or artificial teeth, but crowns and in the case of a bridge, one or more pontics. The processes for designing and manufacturing dentures are thus different from when designing and manufacturing restorations and prostheses.
    [0017] [0017] In some modalities, the method comprises virtually modeling the fixation of artificial teeth in the gingival part. Virtual modeling of artificial teeth fixation in the qenqival part
    [0018] - fornecer uma varredura 3D compreendendo pelo menos parte da cavidade oral do paciente; - modelar virtualmente pelo menos parte da dentadura usando a varredura 3D; - obter dentes virtuais para representar os dentes artificiais; - modelar virtualmente pelo menos um dos dentes artificiais para obter um conjunto de dentes virtuais modelados; - modelar virtualmente a fixação dos dentes artificiais na parte gengival; - fabricar os dentes virtuais modelados em um primeiro material; - fabricar a parte gengival em um segundo material; e - fabricar pelo menos parte da dentadura por meio de fabricação auxiliada por computador (CAM). [0018] According to one aspect, a method is described for modeling and manufacturing a denture for a patient, where the denture comprises a gingival part and artificial teeth, in which the method comprises the steps of: - provide a 3D scan comprising at least part of the patient's oral cavity; - model virtually at least part of the denture using 3D scanning; - obtain virtual teeth to represent artificial teeth; - model virtually at least one of the artificial teeth to obtain a set of modeled virtual teeth; - virtually model the fixation of artificial teeth on the gingival part; - manufacture the virtual teeth modeled on a first material; - manufacture the gingival part in a second material; and - manufacture at least part of the denture by means of computer aided manufacturing (CAM).
    [0019] [0019] It is an advantage that the fixation of artificial teeth in the gingival part is virtually modeled or projected, because when also the fixation of artificial teeth in the gingival part is virtually projected or modeled, then the total process of the design of a denture can be carried out virtually or digitally, and the manufacturing process can then also be carried out entirely automatically, for example, without requiring any manual manufacturing or any manufacturing by people.
    [0020] [0020] It is an advantage to design virtually the fixation of artificial teeth on the gingival part, since this can provide improved aesthetics and functionality of the denture, because the fixation is designed while designing the rest of the denture, and the fabrication of the fixation can also be manufactured. while the rest of the denture is manufactured.
    [0021] [0021] It is also an advantage to design virtually the artificial teeth wiring in the gingival part as well as to design the other parts of the denture, since the virtual design of the fixation can provide a better, firmer, stronger, more solid, robust and reliable use of artificial teeth.
    [0022] [0022] It is an advantage that in the design process it is ensured that the currently designed teeth can be physically fixed in the projected gingiva, as long as the fixation design can be virtually and computationally checked and verified that it can be physically implemented and executed in the denture manufactured. Fixing medium and structures
    [0023] [0023] In some modalities the method comprises virtually modeling means for fixing artificial teeth on the gingival part.
    [0024] [0024] In some modalities the method includes virtually modeling the physical structures to fix the artificial teeth in the gingival part.
    [0025] [0025] In some modalities the method also comprises selecting pre-designed physical structures in a digital library to fix artificial teeth in the gingival part. Methods to virtually model the fixation of artificial teeth on the gingival part
    [0026] [0026] In some modalities the virtual modeling of the fixation of artificial teeth in the gingival part comprises mathematically subtracting a first shape from a second shape.
    [0027] [0027] In some modalities the first shape is the artificial teeth and the second shape is the gingival part.
    [0028] [0028] In some modalities the virtual modeling of artificial teeth fixation in the gingival part comprises displacing at least part of the artificial teeth and / or at least part of the gingival part.
    [0029] [0029] In some modalities the virtual modeling of the fixation of artificial teeth in the gingival part comprises an operation in the cavity.
    [0030] [0030] In some modalities the operation in the cavity involves subtracting the shape of the artificial teeth that is configured to be arranged in the gingiva from the gingival part.
    [0031] [0031] It is an advantage to design virtually the artificial teeth and the gingival part so that the area on the gingival part where the artificial teeth are to be laid out is designed or shaped to match the area on the artificial teeth that are to be laid out on the gingival section. To ensure an effective and stable fixation, the shape of the area on the gingival part where the artificial teeth are configured to be arranged can match, adjust, match, resemble the shape of the area on the artificial teeth that are configured to be arranged on the gingival. Thus, the adjacent 3D surfaces of the contact area on an artificial tooth and the contact area on the gingival part can be designed to exactly match or fit together.
    [0032] [0032] The contact area on the artificial teeth / teeth can be designed and then the design can be copied or transferred to the contact area on the gingival part. Alternatively, the contact on the gingival part can be projected and then the design can be copied or transferred to the contact area over the artificial teeth / teeth.
    [0033] [0033] Alternatively, and / or in addition, a pre-designed standard contact area can be selected from a digital library in a computer software program, and the design of this selected contact area can then be applied or transferred to the contact area on the gingival part and / or to the contact area on the artificial teeth. Holes in the qenqival part to receive the teeth
    [0034] [0034] In some modalities the method also includes shaping and / or making holes in the gingival part to receive the manufactured teeth. The physical design of the fixation
    [0035] [0035] In some modalities the fixation of artificial teeth in the gingival part is obtained by making cuts underneath the gingival part and adjusting with pressure the artificial teeth inside the holes and the cuts underneath the gingival part.
    [0036] [0036] In some modalities the fixation of artificial teeth in the gingival part is obtained by means of locking characteristics.
    [0037] [0037] In some modalities the locking characteristics are arranged in the holes in the gingival part and / or in the area of artificial teeth that is adapted to be arranged in the holes in the gingival part.
    [0038] [0038] In some modalities the locking characteristics are in the form of balls.
    [0039] [0039] In some embodiments the locking characteristics are adapted to be pushed so that they line up with the surface on which they are arranged, and where the locking characteristics are then adapted to be pushed out when the artificial teeth are arranged in the holes in the gingival part to lock the artificial teeth in the gingival part.
    [0040] [0040] In some embodiments the locking characteristics are adapted to be pushed so that they align with the surface on which they are placed, when pressure is applied on the locking characteristics, and when the pressure is relieved from the characteristics of locking in which they are adapted to be pushed out.
    [0041] [0041] In some modalities the fixation of artificial teeth and the gingival part is carried out by gluing the artificial teeth inside the holes in the gingival part.
    [0042] [0042] In some modalities the artificial teeth are fixed in the gingival part by providing a hole in the area of the artificial teeth that is adapted in the hole in the gingival part, and having a bar in the hole, where the bar is adapted to extend to the gingival part to retain the artificial teeth in the gingival part.
    [0043] [0043] In some modalities the artificial teeth are fixed on the gingival part by means of fixation.
    [0044] [0044] In some embodiments the fixing means are screws. Fabricating the fixation
    [0045] [0045] In some embodiments, the method also comprises the manufacture of fixation means for fixing artificial teeth on the gingival part.
    [0046] - fornecer uma varredura 3D compreendendo pelo menos parte da cavidade oral do paciente; - modelar virtualmente pelo menos parte de dentadura usando uma varredura 3D; - obter dentes artificiais para representar os dentes artificiais; - modelar virtualmente pelo menos um dos dentes artificiais para obter um conjunto de dentes virtuais modelados. [0046] In accordance with one aspect of the present invention, a method is described for modeling a denture for a patient, where the denture comprises a gingival part and artificial teeth, wherein the method comprises the steps of: - provide a 3D scan comprising at least part of the patient's oral cavity; - model virtually at least part of the denture using a 3D scan; - obtaining artificial teeth to represent artificial teeth; - model at least one of the artificial teeth to obtain a set of modeled virtual teeth.
    [0047] - fabricar os dentes virtuais modelados em um primeiro material; - fabricar a parte gengival em m segundo material; e - fabricar pelo menos parte da dentadura por meio de fabricação auxiliada por computador (CAM). [0047] Furthermore, according to an aspect of the present invention, a method is described for making a denture for a patient, where the denture comprises a gingival part and artificial teeth, where a 3D scan comprising at least part of the oral cavity of the patient is provided, where at least part of the denture is modeled virtually using 3D scanning; where virtual teeth are obtained to represent artificial teeth; where at least one of the artificial teeth is modeled virtually to obtain a set of modeled artificial teeth, where the method comprises the steps of: - manufacture the virtual teeth modeled on a first material; - manufacture the gingival part in second material; and - manufacture at least part of the denture by means of computer aided manufacturing (CAM).
    [0048] [0048] In some embodiments, artificial teeth are made of a synthetic polymeric material such as acrylic.
    [0049] [0049] Acrylic means a material consisting of or comprising or derived from acrylic.
    [0050] [0050] In some modalities the first and the second material are the same.
    [0051] [0051] In some modalities the first and second material are different.
    [0052] [0052] In some modalities the method also comprises obtaining virtual teeth by algorithmic conformation.
    [0053] [0053] It is an advantage, since the adjustment and aesthetics of artificial teeth can be improved, when virtual teeth are obtained by algorithmic conformation. The algorithmic conformation can be based on existing teeth, gums, etc., in the patient's mouth.
    [0054] [0054] In some modalities the method also includes obtaining virtual teeth by selecting from a number of pre-designed virtual teeth. Thus, when modeling virtually at least one of the selected, pre-engineered, virtual teeth, a set of pre-engineered adjusted teeth will be obtained.
    [0055] [0055] In some modalities the method also comprises selecting the pre-designed teeth from a library of template teeth.
    [0056] [0056] The library can be the library of the user or operator, a library of certain manufacturers of artificial teeth, etc. Alternatively, and / or, in addition, artificial teeth are of the user's own design of the teeth for a denture, of an existing restoration, etc.
    [0057] [0057] In some modalities the method also comprises selecting the pre-designed teeth based on the shape and / or color.
    [0058] [0058] In some modalities the virtual teeth correspond to prefabricated teeth.
    [0059] [0059] Thus, virtual teeth exist as or have corresponding prefabricated teeth. The virtual teeth and the corresponding physical prefabricated artificial teeth can be a manufacturer of artificial teeth, such as Ivoclar, Heraeus, Dentsply, Merz, Vita, etc.
    [0060] [0060] Thus, the result of virtual modeling of virtual teeth will be manufactured by physically modeling the prefabricated teeth. This can be done using a CAD-CAM milling or milling machine.
    [0061] [0061] Alternatively, if, for example, you use a ceramic system such as e.max, all artificial teeth are manufactured from scratch, and no prefabricated teeth are used. The teeth will then be fully customized teeth based on a design. So in some embodiments, artificial teeth are adapted to be manufactured from scratch using no prefabricated teeth.
    [0062] [0062] In some embodiments, at least the prefabricated teeth are made of a material that is adapted to be crushed and / or milled.
    [0063] [0063] In some modalities the method also includes the grinding or automatic milling of the prefabricated teeth according to the virtual teeth modeled by means of a CAM machine.
    [0064] [0064] Alternatively, prefabricated teeth can be used directly on the denture without modifying them, if the design of the prefabricated teeth fits well with the patient. However, normally the virtual teeth will be modeled in a certain way in order to fit the current case.
    [0065] [0065] In some modalities, the method also comprises making the modeled virtual teeth from the prefabricated teeth corresponding to the virtual teeth.
    [0066] [0066] In some modalities, the method also comprises manufacturing virtual teeth modeled from sketches.
    [0067] [0067] The sketches can be sketches of ceramic e.max or other appropriate sketches.
    [0068] [0068] In some modalities, the method also includes manufacturing virtual teeth modeled by printing.
    [0069] [0069] It is an advantage that denture teeth can be manufactured using 3D printing, since 3D printing can provide that artificial teeth are of good quality both aesthetically and functionally. Furthermore, if both the teeth part and the gingival part of the denture are printed, then the denture can be manufactured quickly and with good results. Although both the teeth and the gingival parts are printed, they can be printed on different materials, for example, a hard material for the teeth part and a soft material for the gingival part, and / or in different colors, of so that the teeth part is printed on a white material and the gingival part is printed on a pink / red material resembling the natural color of the gums.
    [0070] [0070] In some modalities, the method also includes providing the virtual teeth to be so large that during the manufacture of the modeled virtual teeth the material is only removed from and not added to the corresponding prefabricated teeth.
    [0071] [0071] It is an advantage, provided that by means of this a grinding or milling machine can be used, provided that the material should only be removed from the prefabricated teeth, and a milling or grinding machine is adapted for cut out the material.
    [0072] [0072] When modeling the gingival part of the denture, different things are taken into account. When a patient has none or only a few teeth in the mouth, the gum and underlying bone structure will disintegrate where there are no teeth. Thus, the gingival part of the denture should be larger in areas where the patient has been toothless for a while, since the gums have collapsed in these areas.
    [0073] [0073] In some modalities, the method also comprises modeling the gingival part based on a gingival gum.
    [0074] [0074] In some modalities the method also comprises modeling the gingival part based on a determined occlusive plane.
    [0075] [0075] The occlusive plane can be determined based on the position of the retromolar space of the mouth and the position corresponding to a central point between the two lower central teeth. The occlusive plane can, moreover, be determined based on other specific points, distances, etc. the patient's mouth.
    [0076] [0076] In some modalities the method also includes determining where the edge of the gingival part should end at the existing physiological gingiva. This can be determined based on a gingival template or can be marked manually. The edge of the gingival part should end in a place so that it looks natural.
    [0077] [0077] In some modalities the method also includes determining where the gingival part should end in the teeth. This can be determined based on different templates, such as a low gingiva template, a high gingiva template and a normal gingiva template. It can also be marked manually on the teeth. The edge of the gingival part should end in one place so that it looks natural.
    [0078] [0078] In some modality, the method also includes using the deviation, lifting and flattening transition to model the gingival part in relation to the existing physiological gingiva and virtual teeth.
    [0079] [0079] Thus, points can be marked on the teeth to indicate that the gingival part must end there, a first deviation of the gingival part from the existing gingiva can be determined, a second deviation of the gingival part from the teeth can be determined , a smooth transition connecting the first deviation from the existing gingiva and the second deviation from the teeth can be performed using a lifting operation.
    [0080] [0080] The deviation can be defined as the deviation within a matrix or other data structure object is an integer indicating the distance or displacement from the beginning of the object to a given element or point. Survey is an industrial drawing technique for drawing curved lines. The technique can be used to perform the curvature of an object, in this case, the virtual object, so that it passes over three non-linear points and crosses the curved line, or graphs the line using computers or mathematical tables.
    [0081] [0081] In some modalities, the method also involves deviating the gingival part around the virtual teeth.
    [0082] [0082] By deviating the gingival part around the virtual teeth and finally around the manufactured teeth, the gingival part will look more natural since this deviation corresponds to how the real physiological gingiva looks around the teeth.
    [0083] [0083] In some modalities, the method also includes applying the dotted wax pattern over the gingival part. When applying the dotted wax pattern the gingival part will look more natural. However, it can be more difficult to clean the denture when there are deviations and a dotted wax pattern because the gingival part will be more bulky, and therefore only the front part of the gingival part can be applied with the dotted wax pattern, although the the gum hidden by the lips and mouth can be regular to facilitate cleaning.
    [0084] [0084] In some modalities the method also comprises arranging the position of the virtual teeth in the gingival part based on predetermined rules and criteria. For example, the vertical distance between where the actual gum ends in the mouth and where the teeth end can be a certain distance.
    [0085] [0085] In addition, mirroring and symmetry can be used to shape the gingival part as well as the teeth.
    [0086] [0086] In some embodiments, the method further comprises that at least the gingival part of the denture is manufactured using 3D printing.
    [0087] [0087] In some modalities the method also includes that at least the gingival part is manufactured by milling.
    [0088] [0088] It is an advantage, since the milling can be easier to use when cuts underneath must be made on the gum.
    [0089] [0089] In some modalities the method also includes modeling and making holes in the gingival part to receive the manufactured teeth.
    [0090] [0090] In some modalities the method also comprises making the gingival part and the teeth manufactured separately.
    [0091] [0091] In some modalities the method also comprises assembling the manufactured teeth and the gingival part automatically after manufacture, so the manufactured teeth are arranged inside the corresponding holes in the gingival part.
    [0092] [0092] In some modalities the method also comprises manufacturing the modeled virtual teeth and the gingival part collectively.
    [0093] [0093] Collective manufacturing can be carried out if both the teeth and the gingival parts of the denture are manufactured by, for example, milling or 3D printing.
    [0094] [0094] In some modalities the method also includes providing virtual teeth to be so large that, during the modeling of virtual teeth, the material is only removed and not added to the virtual teeth. It is an advantage because when the teeth are manufactured from the prefabricated teeth, the prefabricated teeth can be adjusted in a milling or grinding machine, because the material must only be removed.
    [0095] [0095] In some modalities the virtual teeth are a set composed of teeth comprising a number of teeth spatially arranged in relation to each other forming a high functional and aesthetic composition. A high functional composition or combination can be a composition with a good occlusion, bite, etc. A high aesthetic composition can be a composition that is visually pleasing.
    [0096] [0096] In some modalities the method also comprises collectively modifying one or more parameters of the teeth in the composite set of teeth.
    [0097] [0097] In some modalities the denture is adapted to be fixed to dental implants and / or dental implant bars or bridges.
    [0098] [0098] Dental implant bars or bridges can be the primary structure, and the denture can be the secondary or tertiary structure.
    [0099] [0099] Alternatively, the denture is adapted to be supported by existing teeth and / or the actual gums in the patient's mouth.
    [0100] [00100] In some modalities the method also comprises modeling the denture and dental implants and / or dental implant bar or bridge to fit each other.
    [0101] [00101] In some embodiments, the method further comprises modeling the fixation means to fix the denture and dental implants and / or the dental implant bar or bridge to adjust to each other.
    [0102] [00102] In some embodiments, the method also comprises modeling the pins on the dental implant bridge and the corresponding holes in the denture to fit each other.
    [0103] [00103] The pins can be moved virtually to fit the virtual teeth of the denture. The pins can be shaped in a free form or selected from a library or from standard templates. The holes can be generated automatically based on the pin layout. There may also be a cement space in the hole where the pins do not reach the bottom. The pins can be used on a denture to provide extra denture strength.
    [0104] [00104] In some modalities the method also comprises obtaining the dental implant pins and automatically generating the corresponding holes in the denture to adjust the dental implant pins.
    [0105] [00105] The pins can be modeled, selected from a library of dental implant pin templates, or selected from a number of standard pin templates.
    [0106] [00106] In some embodiments, the holes in the denture are manufactured according to the corresponding pins on the bridge.
    [0107] [00107] In some modalities the method also comprises modeling the dental implant pins and holes in the denture based on the holes in the prefabricated teeth.
    [0108] [00108] The holes can be standard holes in the prefabricated teeth, they can be modeled, selected from a library of hole templates, or selected from a number of standard hole templates.
    [0109] [00109] In some embodiments, the pins on the bridge are manufactured according to the corresponding holes in the gum.
    [0110] [00110] In some embodiments, the denture is adapted to be fixed to a partial removable frame.
    [0111] [00111] Thus, the denture can be fixed at least partially to a partial removable frame and, for example, partially to the teeth in the mouth.
    [0112] [00112] In some modalities the method also comprises collectively shaping the partial removable frame and the denture comprising the manufactured teeth and the gingival part.
    [0113] [00113] In some embodiments when the gingival part of the denture is manufactured separately by 3D printing, then the method further comprises separating the gingival part and / or the partial removable frame into at least two parts, so that the gingival part and the partial removable frames are adapted to be assembled and fixed to each other.
    [0114] [00114] In some modalities the method also comprises virtually blocking the space between the partial removable frame and the existing gum. The space can be virtually blocked so that when manufacturing the gingival part based on the CAD design, the gingival part will not extend between the partial removable frame and the actual gingiva.
    [0115] [00115] When making a denture, traditionally a test is made and tested in the patient's mouth before producing the final denture. The reason for this is that the material the denture is made of is a hard material to ensure the maintenance of form, but when testing and adjusting it is easier to use a soft material, and the proof is thus made of a deformable material.
    [0116] - fabricar uma prova compreendendo pelo menos uma prova de gengiva; - testar a prova na boca do paciente; - se a prova não encaixar, ajustar a prova para caber na boca do paciente. [00116] In some modalities the method also comprises the steps of: - manufacture a test comprising at least one gingival test; - test the test in the patient's mouth; - if the test does not fit, adjust the test to fit the patient's mouth.
    [0117] [00117] The test can also include teeth test. Thus, the test can also be indicated a denture test, a gum test, and teeth test, etc.
    [0118] [00118] In some modalities the method also includes printing the gingival proof on a deformable material such as wax.
    [0119] [00119] In some modalities the method also includes sweeping the test after the test in the patient's mouth and optional adjustment.
    [0120] [00120] In some modalities the method also includes automatically detecting changes in the scan of the test after adjustments and modifying the denture design based on this.
    [0121] [00121] This can be accomplished by coating the first project or unmodified scan of the test with the second scan or project of the test, and / or transmuting the first project or scan in the second project or modified scan, segmenting the scan within the teeth and the gum, and then move the gum and / or teeth in the two scans or designs with respect to each other to provide a correct coating. Then the new design of the denture can be carried out.
    [0122] [00122] In some modalities the gingival test is done on a material that is subjected to hardening.
    [0123] [00123] In some modalities after the test has been tested in the patient's mouth and optionally adjusted, the method further comprises hardening the gingival test and providing the gingival test to be at least part of the denture.
    [0124] [00124] In some modalities, the method also includes hardening the test by means of light radiation.
    [0125] [00125] In some modalities after the test has been tested in the patient's mouth and optionally adjusted, a gingival part is modeled based on the test optionally adjusted and printed on a hard material.
    [0126] [00126] In some modalities the test includes manufactured modeled teeth.
    [0127] [00127] In some modalities the modeled teeth manufactured used in the test are also inserted in the final denture.
    [0128] [00128] Thus, only a set of manufactured artificial teeth is manufactured since the teeth are used both in the test and in the final denture.
    [0129] [00129] In some modalities at least one of the manufactured modeled teeth used in the test is replaced with a new manufactured modeled tooth, when inserted in the final denture.
    [0130] [00130] If one or more of the manufactured artificial teeth does not seem to fit the denture after testing them in the test, these teeth that do not fit will be replaced by refurbished manufactured teeth.
    [0131] [00131] In some modalities the method also comprises using a dynamic virtual articulator to simulate occlusion of the set of teeth comprising the modeled denture and any teeth still present in the patient's mouth.
    [0132] [00132] In some embodiments, the modeled denture and any teeth still present in the patient's mouth comprise a virtual upper jaw and a virtual lower jaw of the set of teeth.
    [0133] [00133] In some modalities the method also comprises positioning a virtual alignment plane with respect to the virtual upper jaw and the virtual lower jaw.
    [0134] [00134] In some modalities the virtual alignment plan is fixed in relation to the virtual articulator.
    [0135] [00135] In some modalities the virtual alignment plane is a standard occlusive plane.
    [0136] [00136] In some modalities the virtual alignment plan is flat or curved.
    [0137] [00137] In some modalities the method also includes the automatic movement of the virtual alignment plane in relation to the movement of virtual teeth in the denture, when virtual teeth are being modeled.
    [0138] [00138] In some modalities, one or more of the steps of the method is implemented by computer.
    [0139] [00139] Furthermore, the present invention relates to a computer program product comprising program code means for causing the data processing system to perform the above method when said program code means are executed in the system data processing, and a computer program product comprising a computer-readable medium having the program code means stored therein.
    [0140] [00140] The present invention relates to different aspects including the method described above and below, and corresponding methods, devices, systems, uses and / or product means, each giving one or more of the benefits and advantages described in connection with the first aspect mentioned, and each having one or more modalities corresponding to the modalities described in connection with the first aspect mentioned and / or described in the appended claims.
    [0141] - meios para fornecer uma varredura 3D compreendendo pelo menos parte da cavidade oral do paciente; - meios para modelar virtualmente pelo menos parte da dentadura usando a varredura 3D; - meios para obter dentes virtuais para representar os dentes artificiais; - meios para modelar virtualmente pelo menos um dos dentes virtuais para obter um conjunto de dentes virtuais modelados; - meios para fabricar os dentes virtuais modelados em um primeiro material; - meio para fabricar a parte gengival em um segundo material; e - meios para fabricar pelo menos parte da dentadura por meio de fabricação auxiliada por computador (CAM). [00141] In particular, a system for modeling and / or manufacturing dentures for a patient is described in this document, where the denture comprises a gingival part and artificial teeth, wherein the system comprises: - means for providing a 3D scan comprising at least part of the patient's oral cavity; - means to model virtually at least part of the denture using 3D scanning; - means for obtaining virtual teeth to represent artificial teeth; - means for shaping virtually at least one of the virtual teeth to obtain a set of modeled virtual teeth; - means to manufacture virtual teeth modeled on a first material; - means for making the gingival part in a second material; and - means for making at least part of the denture by means of computer aided manufacturing (CAM).
    [0142] - meios para fornecer uma varredura 3D compreendendo pelo menos parte da cavidade oral do paciente; - meios para modelar virtualmente pelo menos parte da dentadura usando a varredura 3D; - meios para obter dentes virtuais para representar os dentes artificiais; - meios para modelar virtualmente pelo menos um dos dentes virtuais para obter um conjunto de dentes virtuais modelados; - meios para modelar virtualmente a fixação dos dentes artificiais na parte gengival; - meios para fabricar os dentes virtuais modelados em um primeiro material; - meios para fabricar a parte gengival em um segundo material; e - meios para fabricar pelo menos parte da dentadura por meio de fabricação auxiliada por computador (CAM). [00142] In particular, a system for shaping and manufacturing a denture for a patient is described in this document, where the denture comprises a gingival part and artificial teeth, wherein the system comprises: - means for providing a 3D scan comprising at least part of the patient's oral cavity; - means to model virtually at least part of the denture using 3D scanning; - means for obtaining virtual teeth to represent artificial teeth; - means for shaping virtually at least one of the virtual teeth to obtain a set of modeled virtual teeth; - means to model virtually the fixation of artificial teeth on the gingival part; - means to manufacture virtual teeth modeled on a first material; - means for making the gingival part in a second material; and - means for making at least part of the denture by means of computer aided manufacturing (CAM).
    [0143] - meios para fornecer uma varredura 3D compreendendo pelo menos parte da cavidade oral do paciente; - meios para modelar virtualmente pelo menos parte da dentadura usando a varredura 3D; - meios para obter dentes artificiais para representar os dentes artificiais; - meios para modelar virtualmente pelo menos um dos dentes virtuais para obter um conjunto de dentes virtuais modelados; - meios para fabricar os dentes virtuais modelados em um primeiro material; - meios para fabricar a parte gengival em um segundo material; e - meios para fabricar pelo menos parte da dentadura por meio de fabricação auxiliada por computador (CAM). [00143] A device for shaping and manufacturing a denture for a patient, where the denture comprises a gingival part and artificial teeth, in which the device comprises: - means for providing a 3D scan comprising at least part of the patient's oral cavity; - means to model virtually at least part of the denture using 3D scanning; - means for obtaining artificial teeth to represent artificial teeth; - means for shaping virtually at least one of the virtual teeth to obtain a set of modeled virtual teeth; - means to manufacture virtual teeth modeled on a first material; - means for making the gingival part in a second material; and - means for making at least part of the denture by means of computer aided manufacturing (CAM).
    [0144] [00144] According to another aspect of the invention, a fixture is described to retain a sketch from which at least the teeth manufactured from a denture are adapted to be manufactured according to any of the preceding claims.
    [0145] [00145] It is an advantage, as long as this is why the outline is arranged in the fixation in a known position in relation to the milling / milling machinery. BRIEF DESCRIPTION OF THE DRAWINGS
    [0146] [00146] The above and / or additional objectives, characteristics and advantages of the present invention will be further elucidated by the following detailed illustrative and non-limiting description of the modalities of the present invention, with reference to the accompanying drawings, in which:
    [0147] [00147] Figure 1 shows an example of a method flowchart.
    [0148] [00148] Figure 2 shows examples of manufactured dentures.
    [0149] [00149] Figure 3 shows examples of virtual denture modeling.
    [0150] [00150] Figure 4 shows examples of different implant bars.
    [0151] [00151] Figure 5 shows examples of different types of fixation.
    [0152] [00152] Figure 6 shows examples of implant bridges.
    [0153] [00153] Figure 7 shows an example of a different CAD modeling combination for a set of teeth.
    [0154] [00154] Figure 8 shows an example of how a denture and a partial removable frame are attached to each other.
    [0155] [00155] Figure 9 shows examples of modeling the gengi-val part.
    [0156] [00156] Figure 10 shows examples of fixation of artificial teeth in the gingival part.
    [0157] [00157] Figure 11 shows an example of a flowchart of an aspect of the method. DETAILED DESCRIPTION
    [0158] [00158] In the following description, reference is made to the attached Figures that show by way of illustration how the invention can be practiced.
    [0159] [00159] Figure 1 shows an example of a flowchart of the method for computer aided modeling and computer aided fabrication of a denture comprising a gingival part and artificial teeth.
    [0160] [00160] In step 101, a 3D scan is provided comprising at least part of the patient's oral cavity.
    [0161] [00161] In step 102 at least part of the denture is modeled virtually using 3D scan. In step 103 the virtual teeth are obtained to represent the artificial teeth.
    [0162] [00162] In step 104 at least one of the virtual teeth is modeled virtually to obtain a set of modeled virtual teeth.
    [0163] [00163] In step 105 the modeled virtual teeth are manufactured from a first material.
    [0164] [00164] In step 106 the gingival part is made of a second material.
    [0165] [00165] In step 107 at least part of the denture is manufactured by means of computer aided manufacturing (CAM).
    [0166] [00166] Figure 2 shows examples of manufactured dentures.
    [0167] [00167] Figure 2a) shows photographs of a denture 201 that is, or is a part of, or comprises a partial denture. The partial denture 201 comprises a frame 206 and a gingival portion 203 and a portion of teeth comprising artificial acrylic teeth 205.
    [0168] [00168] In the top image, the partial denture is arranged next to a model of the teeth present in the patient, and the denture is seen from below, that is, from the side pointing towards the palate.
    [0169] [00169] In the background image, the partial denture is arranged on the model of the patient's teeth, and the denture is seen from above, that is, from the side pointing towards the vicinity when the denture is arranged in the mouth of the patient.
    [0170] [00170] Figure 2b) shows photographs of an upper denture 201 and a lower denture, which are both partial dentures. The partial dentures 201 comprise a frame 206 and a gingival part 203 and the top image also shows a part of the teeth comprising artificial acrylic teeth 205.
    [0171] [00171] In the top image, the partial dentures are arranged over the models of the teeth present in the patient, and the dentures are seen from above or from the front side.
    [0172] [00172] In the background image, the partial dentures are arranged close to the patient's teeth models, and the dentures are seen from below or from the back side. In the background image, dentures are shown without artificial teeth or polishing the metal frame.
    [0173] [00173] Figure 2c) shows photographs of a denture 201 that is a denture of the total jaw, that is, a denture for the upper arch. Denture 201 comprises a gingival part 203 and a part of teeth comprising artificial teeth 205 made of acrylic.
    [0174] [00174] In the top image, the partial denture is arranged over the model of the teeth present in the patient and the denture is seen from above or from the frontal side. In the background image, the partial denture is arranged close to the patient's teeth model, and the denture is seen from below or from the rear.
    [0175] [00175] Denture 201 shown in Figure 2c) is a removable denture, and is not attached to the mouth by any means of fixation when in use, so the patient can at any time remove the denture. The denture 201 of Figure 2c) is held in place in the patient's mouth by means of friction, suction, negative pressure, etc.
    [0176] [00176] Dentures 201 of Figure 2a) can be removable for the patient, however, alternatively, dentures can be attached to existing teeth by some means of fixation, which only the dentist can handle.
    [0177] [00177] InteraDent Zahntechnik GmbH in Lubeck, Germany provided the images of the different dentures shown in Figure 2.
    [0178] [00178] Figure 3 shows examples of virtual denture modeling.
    [0179] [00179] Figure 3a) shows an example of virtual modeling of an implant bar for implants and dentures.
    [0180] [00180] Virtual denture 301 comprises a portion of virtual teeth 304 comprising virtual teeth 305, and a virtual gingival portion 303. Within the virtual denture 301 which is transparent, a virtual implant bar 307 is seen and marked with dots above it. A number of virtual implant screws 308 are also seen sticking under the denture 301. The implant screws 308 are attached to the implant bar 307. A portion of a scan 302 of the patient's jaw is also seen inside denture 301.
    [0181] [00181] The implant bar 307 is modeled to optimally fit the denture 301 and implants 308 using virtual tools in the computer aided design (CAD) software. Virtual measurements can be performed to validate the space and distances of denture 301, scan 302, implant bar 307, implant screws 308, etc. The connection from the implant bar 307 to the implants 308 can be formed as a cylindrical extension, as an emergency profile in free form, etc.
    [0182] [00182] Figure 3b) shows an example of virtual modeling of a removable denture.
    [0183] [00183] A virtually modeled tooth 305 in a partial removable frame is disposed with a distance to the existing gum 316, and the space 319 between the tooth and the existing gum is virtually blocked to avoid having the denture material between the teeth and the existing gum when the manufactured denture is used by the patient. Gingival part 303 is shaped so that tooth 305 is attached to gingival part 303.
    [0184] [00184] Figure 4 shows examples of different implant bars.
    [0185] [00185] Figure 4a) shows an example of an implant bar 407 for a total denture (not shown). The denture can be a removable denture, that is, it can be removably attached to the implant bar 407 by means of fixings in the form of, for example, clamps (not shown) that can be fitted inside and outside the implant bar. 407. The implant bar 407 comprises holes 411 for receiving implants.
    [0186] [00186] Figure 4b) shows an example of an implant bar 407 for a total denture (not shown). The denture can be a removable denture, that is, it can be removably attached to the implant bar 407 by means of the fixations 409 in the form of locators present both in the denture and in the implant bar 407, where the locators 409 establish that the denture can be clicked on and off of the implant bar 407.
    [0187] [00187] The implant bar 407 comprises holes 411 for receiving implants.
    [0188] [00188] Figure 4c) shows an example of an implant bar 407 for a total denture (not shown). The denture can be a fixed denture, that is, it can be fixedly attached to the implant bar 407, for example, by gluing part of the denture into the retaining holes 410 in the implant bar 407. This can be done using acrylic on the denture, and the soft acrylic from the denture will then flow into the retaining holes 410 of the implant bar 407 and thereby fixing the denture to the implant bar 407.
    [0189] [00189] The implant bar 407 comprises the holes 411 for receiving implants.
    [0190] [00190] Figure 5 shows examples of different types of fixation.
    [0191] [00191] Figure 5a) shows a fixation in the form of a locator 509. The locator 509 can comprise a male part on, for example, the implant bar and a female part on, for example, the denture or vice versa, and the male and female parts can work like a button.
    [0192] [00192] Figure 5b) shows a fixation in the form of a 509 ball fixation.
    [0193] [00193] Figure 5c) shows a fixation in the form of retention holes 510.
    [0194] [00194] Another type of fixation can be a sliding fixation, however, any type of fixation from a CAD library can be used.
    [0195] [00195] When modeling the denture and the implant, different types of fixations can be added anywhere on the implant bar, and the fixations can then be rotated and translated for excellent adjustment of their position and angles.
    [0196] [00196] Figure 6 shows examples of implant bridges.
    [0197] [00197] Figure 6a) shows an example of an implant bridge 607 on which a total denture is adapted to be arranged. On the opposite side where the denture is to be fixed, the implant bridge 607 comprises projections 612 from the holes for receiving implants (not shown).
    [0198] [00198] Figure 6b) shows an example of an implant bridge 607 comprising pins 613 where each pin is adapted to receive an artificial tooth having a hole in it to fit over the pin, or where the pin is adapted to be covered by polishing in the form of, for example, ceramic or composite material to resemble teeth. Thus, in this case the denture can be defined as comprising the artificial teeth fixed on the pins, or the denture can be defined as the polishing resembling teeth. On the side opposite pins 613, implant bridge 607 comprises projections 612 from the holes for receiving implants (not shown). An original waxing bar design can be scanned to reshape the implant bar with new material to create a digitized file that is suitable for, for example, copy milling. Adjustments for the scanned model can be applied to obtain the optimal copy milling result.
    [0199] [00199] Figure 7 shows an example of the combination of different CAD modeling for a set of teeth.
    [0200] [00200] All restorations can be designed in the same modeling session using the modalities of this method. When all restorations are modeled in the same session, efficacy and clinical outcome will be improved.
    [0201] [00201] Figure 7 shows a standard bridge 714, total anatomical crowns 715, an implant bridge 707 and implants 708. A denture should also be modeled using CAD and after fabrication is attached to the implant bridge 707 and, for example, on standard bridge 714, Alternatively, polishing can be applied to the standard bridge to make an anatomical bridge, for example, polishing in the form of porcelain.
    [0202] [00202] Figure 8 shows an example of how a denture and a partial removable frame are attached to each other.
    [0203] [00203] Figure 8a) shows a partial removable frame 806 with retaining grid and holes 817, but without artificial teeth or gums attached.
    [0204] [00204] Figure 8b) shows a cross section of a denture with a partial removable frame, for example, as seen in Figures 2a) and 2b). The partial removable frame 806 is embedded in the gingival part 803, since the gingival part 803 is present both above and below the frame 806. An artificial tooth 805 is arranged on the gingival part, and the gingival part 803 rests on the gingiva real physiology 816 of the patient.
    [0205] [00205] If the gingival part 803 is poured into silicone, then the liquid silicone can flow into the holes of the retention grid 817 in the frame 806. But, if the gingival part 803 is printed, then there is no liquid silicone to flow into the holes of the retaining grid 817. For the frame 806 and the gingival part 803 to be attached to each other, the gingival part 803 can then be separated as indicated by the separation line 818 into two or more parts which can then be assembled around the frame 806. The separation line (s) 818 may be located elsewhere on the gingival part 803, for example, vertical instead of horizontal, etc. Alternatively, and / or in addition, frame 806 including retaining grid 817 can be separated into two or more parts.
    [0206] [00206] Figure 9 shows examples of modeling the gingival part.
    [0207] [00207] Figure 9a) shows points 920 marked on teeth 905 to indicate that gingival part 903 should end there. A first deviation 921, marked by arrows, of the gingival part 903 from the existing gum 916 can be determined, a second deviation, marked by arrows, 922 of the gingival part 903 from teeth 905 can be determined, a regular transition 923 connecting the first deviation from the existing gingiva 916 and the second deviation 922 from the teeth can be performed using a lifting operation.
    [0208] [00208] Figure 9b) shows an example of deviation 922, marked by arrows, the gingival part 903 around the virtual teeth 905. When deviating the gingival part 903 around the virtual teeth 903 and finally around the manufactured teeth, the gingival part 903 will look more natural since it is what the physiological gingiva looks like.
    [0209] [00209] Figure 10 shows examples of fixation of artificial teeth in the gingival part.
    [0210] [00210] Figure 10a) shows an example where the holes 1024 are modeled and manufactured in the gingival part 1003 to receive the manufactured teeth. In Figure 14, the 1024 holes are provided and, thus, the denture is configured to receive 14 artificial teeth, which can be all the teeth of a patient's lower and upper jaw. Some holes 1024 can be made in the gingival part 1003, if the denture is not a total denture, but a partial denture.
    [0211] [00211] Figure 10b) shows an example where orifice 1024 in the gingival part comprises cuts below 1025, whereby artificial teeth 1006 can be fixed in orifice 1024 by pressure adjustment.
    [0212] [00212] Figure 10c) shows an example where the artificial tooth 1005 is fixed in the hole 1024 of the gingival part by means of a fixation in the form of a screw 1026 at the bottom of the hole 1024. A screw hole 1027 is manufactured in the bottom of orifice 1024, and a screw hole 1028 is fabricated at the bottom of artificial tooth 1005.
    [0213] [00213] Figure 10d) shows an example where artificial tooth 1005 is fixed in hole 1024 in the gingival part by means of ball-shaped locking features 1029, 1030. The part of the locking feature in hole 1024 can be indicated at orifice locking feature 1029, and the part of the locking feature on the artificial tooth 1005 can be indicated the tooth locking feature 1030. The locking and orifice feature 1029 and the tooth locking feature 1030 match each other so that tooth 1005 is fixed in hole 1024 in the gingival part by means of the locking characteristics 1029 and 1030.
    [0214] [00214] There may be one or more, such as one, two, three, four or five sets of locking characteristics for each artificial tooth.
    [0215] [00215] The tooth locking feature 1030 can be configured to be pushed to align with the flat surface of the tooth where it is placed, for example, when pressure is applied to the locking feature 1030, for example, when a machine or a dental technician presses locking feature 1030 to push artificial tooth 1005 into hole 1024 in the gum. When artificial tooth 1005 has been pushed down into hole 1024, tooth lock feature 1030 is configured to push out again and file the space in the side wall of hole 1024 provided by the corresponding hole lock feature 1029,
    [0216] [00216] Figure 10e) shows an example where artificial tooth 1005 is fixed in orifice 1024 in the gingival part by means of the ball-shaped locking characteristics 1029, 1030. The part of the locking characteristic in orifice 1024 can be indicated at orifice locking feature 1029, and the part of the locking feature on the artificial tooth 1005 can be indicated the tooth locking feature 1030. The orifice locking feature 1029 and the tooth locking feature 1030 match each other so that tooth 1005 is fixed in hole 1024 in the gingival part by means of the locking characteristics 1029 and 1030.
    [0217] [00217] There may be one or more, such as one, two, three, four or five sets of locking characteristics for each artificial tooth.
    [0218] [00218] The orifice lock feature 1029 can be configured to be pushed to align with the flat surface of the orifice wall 1024 where it is arranged, for example, when pressure is applied to the lock feature 1029, for example, when a machine or dental technician pushes the artificial tooth 1005 into the orifice 1024 in the gum. When artificial tooth 1005 was pushed down into hole 1024, hole lock feature 1029 is configured to push out again and file the space in the side wall of tooth 1005 provided by the corresponding tooth lock feature 1030.
    [0219] [00219] Figure 10f) shows an example where the artificial tooth 1005 is fixed in the gingival part by providing a hole 1031 in the area of the artificial teeth that is adapted to be arranged in the hole 024 in the gingival part, and to arrange a bar 1032 in hole 1031, where bar 1032 is adapted to extend out of hole 1024 of gingival part 1003 to retain artificial tooth 1005 in gingival part 1003. Hole 1024 in gingival part 1003 may comprise holes 1033 in the side walls of hole 1024 so that bar 1032 can fit into hole 1024.
    [0220] [00220] Alternatively, and / or in addition, artificial teeth can be fixed, for example, in the holes, in the gingival part by means of glue, cement, tape, vacuum or negative pressure created by moisture in the patient's mouth, etc.
    [0221] [00221] Figure 11 shows an example of a flowchart of the method for computer aided modeling and computer aided fabrication of a denture comprising a gengi-val part and artificial teeth.
    [0222] [00222] In step 101 a 3D scan comprising at least part of the patient's oral cavity is provided.
    [0223] [00223] In step 102 at least part of the denture is modeled virtually using 3D scanning.
    [0224] [00224] In step 103 the virtual teeth are obtained to represent the artificial teeth.
    [0225] [00225] In step 104 at least one of the virtual teeth is modeled virtually to obtain a set of modeled virtual teeth.
    [0226] [00226] In step 105 the fixation of the artificial teeth on the gingival part is modeled virtually to ensure a fixation of the artificial teeth on the gingival part.
    [0227] [00227] In step 106 the modeled virtual teeth are manufactured from a first material.
    [0228] [00228] In step 107 the gingival part is made of a second material.
    [0229] [00229] At least part of the denture is manufactured by means of computer aided manufacturing (CAM).
    [0230] [00230] Although some modalities have been described and shown in detail, the invention is not restricted to them, but can also be incorporated in other ways within the scope of the subject matter defined in the following claims. In particular, it should be understood that other modalities can be used and structural and functional modifications can be made without departing from the scope of the present invention.
    [0231] [00231] In the device claims enumerating various means, several of these means may be incorporated by one and the same item of hardware. The mere fact that certain measures are cited in mutually different dependent claims or described in different modalities does not indicate that a combination of these measures cannot be used to advantage.
    [0232] [00232] It should be emphasized that the term "comprises / understanding" when used in this report is taken to specify the presence of the declared characteristics, integers, steps or components, but does not prevent the presence or addition of one or more of the characteristics , whole numbers, steps, components or groups thereof.
    [0233] [00233] The characteristics of the method described above and below can be implemented in software and carried out in a data processing system or other processing means caused by the execution of executable instructions by computer. The instructions can be program code media loaded into memory, such as RAM, from a storage medium or from another computer over a computer network. Alternatively, the described features can be implemented by physically connecting circuits instead of software or in combination with software.
    权利要求:
    Claims (14)
    [0001]
    Method for computer-implemented modeling (101, 102, 103, 104) and fabrication (105, 106, 107) of a denture (201) for a patient, denture wave (201) comprises a gingival part (203) and artificial teeth ( 205), the method characterized by the fact that it comprises the steps of: providing a 3D scan comprising at least part of the patient's oral cavity; model virtually at least part of the denture (301) using 3D scan; obtain virtual teeth to represent artificial teeth; model virtually at least one of the virtual teeth to obtain a set of modeled virtual teeth (305); automatically detect changes in the test scan after adjustments and modify the denture based on this by coating the first design or unmodified scan of the test with the second design or modified scan of the test and segmenting the scan within the teeth and gums, and then move the gum and / or teeth in the two sweeps or designs with respect to each other to provide a correct coating; and where making the denture (201) comprises making the modeled virtual teeth (205) from a first material; fabricating the gingival part (203) in a second material; and making at least part of the denture using computer aided manufacturing (CAM).
    [0002]
    Method, according to claim 1, characterized by the fact that the method comprises virtually modeling the fixation of artificial teeth in the gingival part.
    [0003]
    Method, according to claim 1, characterized by the fact that the method further comprises shaping and fabricating holes in the gingival part to receive the manufactured teeth.
    [0004]
    Method, according to claim 1, characterized by the fact that the fixation of artificial teeth in the gingival part is obtained by means of locking characteristics.
    [0005]
    Method according to any one of claims 1 to 4, characterized in that the method further comprises grinding or automatic grinding of the prefabricated teeth according to the virtual teeth modeled by means of a CAM machine.
    [0006]
    Method according to any one of claims 1 to 5, characterized by the fact that the method still comprises providing virtual teeth to be so large that, during the manufacture of modeled virtual teeth, the material is only removed from and not added to the corresponding prefabricated teeth.
    [0007]
    Method, according to any one of claims 1 to 6, characterized by the fact that the method further comprises using deviation, tracing and smooth transition to model the gingival part with respect to the existing physiological gingiva and virtual teeth.
    [0008]
    Method, according to claim 1, characterized by the fact that the method also comprises applying a wax pattern shaded by dots on the gingival part.
    [0009]
    Method, according to claim 1, characterized by the fact that the virtual teeth are a set composed of teeth comprising a number of teeth spatially arranged in relation to each other forming an aesthetic and highly functional composition and in which the method further comprises modifying collectively one or more parameters of the teeth in the composite set of teeth
    [0010]
    Method according to any one of claims 1 to 9, characterized in that the method further comprises shaping the denture and dental implants and / or dental implant bar or bridge to fit each other.
    [0011]
    Method according to claim 1, characterized in that the denture is adapted to be fixed to a partial removable frame, and the method further comprises collectively shaping the partial removable frame and the denture comprising the manufactured teeth and the part gingival.
    [0012]
    Method, according to claim 1, characterized by the fact that after the test has been tested in the patient's mouth and optionally adjusted, the gingival part is modeled based on the test optionally adjusted and printed on a hard material.
    [0013]
    Method, according to claim 1, characterized by the fact that the method also comprises positioning a virtual alignment plane in relation to the virtual upper jaw and the virtual lower jaw.
    [0014]
    Method, according to claim 1, characterized by the fact that the method also comprises automatic movement of the virtual alignment plane with respect to the movement of the virtual teeth in the denture, when the virtual teeth are being modeled.
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    同族专利:
    公开号 | 公开日
    RU2581029C2|2016-04-10|
    US10512525B2|2019-12-24|
    RU2013119463A|2014-11-20|
    KR101799873B1|2017-11-22|
    WO2012041329A1|2012-04-05|
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    JP5932803B2|2016-06-08|
    KR20130097216A|2013-09-02|
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    JP2013540513A|2013-11-07|
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    CA2813054C|2020-11-24|
    EP2621397A4|2015-11-11|
    BR112013007435A2|2016-07-12|
    CA2813054A1|2012-04-05|
    CN103237519B|2016-09-14|
    US20130316302A1|2013-11-28|
    EP3777757A1|2021-02-17|
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    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-08-20| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-11-03| B09A| Decision: intention to grant|
    2021-01-12| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 30/09/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US38895610P| true| 2010-10-01|2010-10-01|
    US61/388,956|2010-10-01|
    DKPA201000893|2010-10-01|
    DKPA201000893|2010-10-01|
    PCT/DK2011/050370|WO2012041329A1|2010-10-01|2011-09-30|Modeling and manufacturing of dentures|
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