• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a support system (12) related to dental methods and their use. the support system (12) comprises: a soft tissue-integrated support part (10), adapted to be secured to an osseointegrated dental implant (40) via a support screw (56), wherein the support system is adapted to selectively support a final retained cementitious restoration (66) and a retained screw prosthetic component (68, 70). the present invention also relates to methods related to dental area.
    公开号:BR112015000549B1
    申请号:R112015000549-7
    申请日:2013-06-28
    公开日:2021-07-13
    发明作者:Jorneus Lars；Rompen Eric；Eric Van Dooren；Touati Bernard
    申请人:Nobel Biocare Services Ag；
    IPC主号:
    专利说明:

    Field of Invention
    [001] The present invention is related to a support system and its use. The present invention also relates to methods used in the dental field.
    [002] US Patent No. 5,810,592 (Daftary) discloses a dental implant system made of four pieces: a healing support shaped in the shape of a cylindrical equilateral triangle, a large screw element, a matching support head, and a small screw element. The healing support has an intermediate recess to accommodate the gingival tissues that surround the patient's maxillary bone. In addition, the matching support head is fixed to the healing support to support a tooth analog. The large screw element is used to secure the healing support to an implant element. The small screw element is for attaching the support head to the healing support. However, the dental implant system described in US Patent 5,810,592 appears to only support a tooth analog held in cement.
    [003] U.S. Patent No. 5,040,983 (Binon) discloses a finish or protective accessory attached to a dental implant element installed in a jaw bone. A transmucosal component that penetrates the overlying gingival tissue is secured to the implant element with a pin, the head portion of which has an internally threaded sleeve, which receives a screw cooperating with a recess to secure the finish or protective element to the transmucosal component. The finish is ideal for use in the removable fixation of a temporary dental restoration on the holder, which consists of the dental implant element and its transmucosal component, where a permanent dental restoration will eventually be attached. Temporary dental restoration is mounted on or around the finish. However, the system described in U.S. Patent No. 5,040,983 supports only one screw-held denture restoration.
    [004] The present invention is defined in the appended independent claims. The modalities are defined in the appended dependent claims.
    [005] According to a first aspect, there is provided a support system comprising: a support part integrated into the soft tissue, adapted to be fixed to an osseointegrated dental implant by means of a support screw, in which the support system is adapted to selectively support a retained cemented final dental restoration, and a retained screw prosthesis component. This means that both the final retained cementitious restoration and the retained screw prosthesis component can be supported using the same soft tissue-integrated support part. This makes the support system flexible to use.
    [006] The support system may further comprise a coronal support part, adapted to be fixed to the support part integrated into the soft tissue, by means of an additional screw, in which the coronal support part is further adapted to support the final restoration of retained cement.
    [007] The prosthesis component may be a final retained screw restoration, adapted to be directly attached to the flat support portion of the soft tissue by means of an additional screw.
    [008] The support screw may have an internally threaded coronal portion, in which the additional screw has an externally threaded apical portion, for engagement with the internally threaded coronal portion of the support screw.
    [009] The soft tissue-integrated support part may have a flat peripheral top surface on the outer perimeter of the coronal end of said soft tissue-integrated support part.
    [010] The soft tissue-integrated support part may have at least one inclusion element exposed to the coronal end of the soft tissue-integrated support part, to prevent rotation of a component attached to the soft tissue-integrated support part.
    [011] The peripheral flat top surface may have an inner circular perimeter, wherein said at least one inclusion element is at least one lobe, which extends apically from the inner circular perimeter.
    [012] The soft tissue-integrated support portion may have a planned outer surface for soft tissue exposure.
    [013] The outer surface may be curved in the coronal-apical direction of the supporting part integrated into the soft tissue. The curved outer surface may extend from a larger coronal diameter to a smaller apical diameter, first in a convex shape, then in a concave shape.
    [014] The soft tissue-integrated support part has an external surface, adapted to support an internal connecting surface of the osseointegrated dental implant.
    [015] The support system can comprise several flat soft tissue support parts (of the general type described above), with different diameters and/or heights.
    [016] Another aspect of the invention relates to the use of a support system as described above, to selectively support a final retained comment restoration and a retained screw prosthesis component. This aspect may show the same or similar features and advantages of the aspect described above, and vice versa.
    [017] According to yet another aspect, a dental method is provided, comprising: providing a support system including a support part integrated to the universal soft tissue, adapted to be fixed to an osseointegrated dental implant; and attaching the universal soft tissue integrated support portion to the osseointegrated dental implant installed in a patient's jaw bone, wherein the support system is adapted to selectively support a retained cementitious final restoration and a retained screw final restoration. This aspect can show the same or similar characteristics and advantages of the aspects described above, and vice versa.
    [018] The universal soft tissue-integrated support portion can remain attached to the osseointegrated dental implant during the subsequent steps of the method, which include: selecting one of a retained cementitious final restoration and retained screw final restoration; and attach the selected final restoration to the backup system.
    [019] The universal soft tissue-integrated support part can be fixed to the osseointegrated dental implant, immediately after the osseointegrated dental implant is installed in the patient's maxillary bone.
    [020] The osseointegrated dental implant is allowed to at least partially integrate with the bone, before the selected final restoration is fixed.
    [021] The osseointegrated dental implant can be installed in the maxillary bone, so that the coronal end of the osseointegrated dental implant is substantially flush with the edge of the maxillary bone.
    [022] The fixed support part integrated into the universal soft tissue features an external surface exposed to the soft tissue.
    [023] According to yet another aspect, a dental method is provided, in which a support part integrated to the universal soft tissue of a support system is attached to an osseointegrated dental implant installed in the maxillary bone of a patient, and in which the support system is adapted to selectively support a final retained cementitious restoration and a final retained screw restoration, which method further comprises: selecting one of a final retained cementitious restoration and final retained screw restoration; and attach the selected final restoration to the backup system. This aspect can show the same or similar characteristics and advantages of the aspects described above, and vice versa.
    [024] These and other aspects of the present invention will now be described in greater detail with reference to the accompanying drawings showing the presently preferred embodiments of the invention.
    [025] Figure la is a cross-sectional side view of a support part integrated into the soft tissue, of a support system according to the present invention.
    [026] Figure 1b is a perspective view of the soft tissue-integrated support portion shown in Figure 1a.
    [027] Figure 2a is a cross-sectional side view of the soft tissue-integrated support part shown in figure la, fixed to a dental implant.
    [028] Figure 2b is a perspective view of the arrangement shown in Figure 2a.
    [029] Figure 3 is a perspective view of the support part integrated into the soft tissue and the dental implant shown in Figure 2a, together with a cover screw.
    [030] Figure 4a is a side view of the soft tissue-integrated support part and dental implant shown in figure 2a, together with a coronal support part to support a final retained cementitious restoration.
    [031] Figure 4b is a cross-sectional side view of the arrangement shown in figure 4a.
    [032] Figure 4c is a perspective view of the arrangement shown in Figure 4a.
    [033] Figure 4d is a cross-sectional perspective view of the arrangement shown in figure 4a.
    [034] Figure 5a is a perspective view of the soft tissue integrated support portion and the dental implant shown in Figure 2a, along with a retained screw final restoration.
    [035] Figure 5b is a cross-sectional side view of the arrangement shown in Figure 5a.
    [036] Figure 5c is a cross-sectional perspective view of the arrangement shown in Figure 5a.
    [037] Figure 6 is a flowchart of the methods according to the present invention.
    [038] Figures la-lb show a support part integrated to the soft tissue (universal) (10) of a support system (12) . The soft tissue-integrated support portion (10) is universal" in that it can be used for both a final retained cementitious restoration and a retained screw prosthesis component, as will be explained later below.
    [039] The soft tissue-integrated support part (10) is preferably made of a single piece, and may be made, for example, of titanium or ceramic material (for example, zirconia).
    [040] The support part integrated to the soft tissue (10) has a coronal end (14) and an apical end (16). At the coronal end (14), the soft tissue-integrated bearing portion (10) may have a flat peripheral top surface (18) on the outer perimeter of the soft-tissue-integrated bearing portion (10). The flat peripheral top surface (18) allows an effective sealing, without the inclusion of cement or similar material, against another component having a corresponding flat surface.
    [041] The flat peripheral top surface (18) has an inner perimeter (20) that can be circular. The circular inner perimeter (20) can accommodate at least one embedding element, here in the form of three concave lobes (22a-22c), evenly distributed around the inner circular perimeter (20) . The three concave lobes (22a-22c) extend apically from the circular inner perimeter (20) in an inner sidewall (24) of the soft tissue-integrated support portion (10) . The embedding elements may prevent rotation (about the longitudinal axis (26) of the soft tissue-integrated bearing portion (10)) of a component having corresponding embedding elements, attached to the soft-tissue-integrating bearing portion (10) . This component can be, for example, a single retained screw restoration (crown). However, a component without corresponding enclosing elements can rotate. Such a component may (only) have a circular surface corresponding to the circular inner perimeter (20). It should be noted that other types of inclusion elements are possible, eg convex lobes (not shown) rather than concave lobes (22a-22c). Also, the number of include elements can be varied.
    [042] By extending apically from the flat peripheral top surface (18), the soft tissue-integrated support portion (10) also has an outer surface (28), designed to be exposed to the soft tissue or gums . Hence the term "soft tissue-integrated" support part (10).
    [043] The outer surface (28) may have an extension (L) greater than its height (H) , in order to increase the extension of soft tissue contact and improve soft tissue healing. The extension can be, for example, approximately 2.5 mm, while the height of approximately 2 mm. The limited height or low profile of the soft tissue-integrated support part (10) also enables healing without the need for depression of the dental implant (see below).
    [044] The outer surface (28) may, for example, be at least partially curved between its coronal and apical ends. In the embodiment shown in figures la-lb, the curved outer surface (28) extends from a larger coronal diameter (D1) to a smaller coronal diameter (D2), first in a convex shape (30a), then in a concave shape (30b). It should be noted that other configurations are possible. Thus, for example, the outer surface (28) may comprise straight portions inclined relatively to each other.
    [045] In addition, the outer surface (28) can be provided with one or several peripheral or ring-shaped slits (not shown), whereby sufficient extension and additional geometric soft tissue lock can be established.
    [046] Also, a lower (apical) portion of the outer surface (28) can be thinned out to improve stabilization.
    [047] The external surface (28) transits apically within an external surface (32) of the support part integrated to the soft tissue (10) . The outer surface (32) is generally adapted to rest against an inner connecting surface of an osseointegrated dental implant, as will be explained later. The outer surface (32) may be straight, but inclined with respect to the longitudinal axis (26) of the soft tissue-integrated support part (10), with a diameter decreasing towards the apical end (14) of the integrated support part to the soft tissue (10) . In other words, a conical portion is formed in the support part integrated to the soft tissue (10) . In an alternative embodiment (not shown), the outer surface may be parallel to the longitudinal axis (26) of the soft tissue-integrated bearing portion (10), depending on which implant, the soft tissue-integrated bearing portion (10) should be fixed.
    [048] At the apical end (14), the soft tissue-integrated support part (10) may comprise an interlock portion (34). The interlocking portion (34) may comprise a generally hexagonal outer shape sized to fit within an interlocking recess of the osseointegrated dental implant.
    [049] The soft tissue-integrated support part (10) further comprises an internal hole (36) extending from the coronal end (14) to the apical end (16) and coincides with the longitudinal axis (26) of the support part integrated to the soft tissue (10) . In the internal hole (36) there is a seat (38).
    [050] Figures 2a-2b show the support part integrated to the soft tissue (10) fixed to a dental implant (40) . The dental implant (40) is an "osseointegrated" dental implant, meaning that its coronal end (42) is substantially flush with the edge or crest (44) of a patient's maxillary bone (46) when the dental implant (40) ) is installed in the maxillary bone (46).
    [051] The dental implant (40) may, for example, be of the type disclosed in patent document WO 2008/128757 A2, the content of which is incorporated herein by means of this reference. However, other implants (osseointegrated) can also be used.
    [052] Among other things, the dental implant (40) comprises an internal connecting interface, which is open to the coronal (or proximal) end (42) of the dental implant (40). The internal connection interface comprises a conical chamber (48), a hexagonal interlocking recess (50) and an internally threaded portion (52). The conical chamber (48) has a sloped internal connecting surface (54) corresponding to the external surface (32) of the soft tissue-integrated support portion (10).
    [053] When in use, the soft tissue-integrated support portion (10) is secured to the osseointegrated dental implant (40) by means of a support screw (56), as shown in figures 2a-2b. The support screw (56) can be included in the support system (12). The support screw (56) has an externally threaded apical portion (58) for engaging the internally threaded portion (52) of the dental implant (40). In addition, the support screw (56) has a head (60) which rests on the seat (38) of the support part integrated with the soft tissue (10). The head (60) may have an internally threaded coronal portion (62). After tightening the support screw (56), the soft tissue-integrated support portion (10) is firmly attached to the dental implant (40), and the mating surfaces (32) and (54) create an effective and hermetic seal.
    [054] As also shown in Figure 2a, the height (H) of the outer surface (28) of the soft tissue-integrated support portion (10) may correspond to the height of the soft tissue (64) adjacent to the osseointegrated dental implant (38) installed.
    [055] The present support system (12) selectively supports a final retained cementitious restoration (see figures 4a-4d and 6) and a final retained screw restoration (see figures 5a-5c and 6). In other words, both a retained cemented final restoration and a retained screw final restoration can be supported using the same support part integrated into the soft tissue (10) . Also, the support system (12) can support other retained screw prosthesis components such as a cap screw (70) (see Figure 3), a print finishing element, a bar, etc.
    [056] The present invention can also be considered as a two-piece dental implant integrated into soft tissue, in which the two pieces include the dental implant (40) (osseointegrated) and the supporting part (10) (integrated into the soft tissue ).
    [057] In Figure 3 a cover screw (70) is fixed to a support part integrated into the soft tissue (10). The cap screw (70) may have an externally threaded portion (not shown) for engagement with the internally threaded portion (62) of the support screw (56). The support screw (70) may further have a flat peripheral surface corresponding to the flat peripheral top surface (18) of the soft tissue-integrated support part (10) to create an effective seal between the cover screw (70) and the soft tissue-integrated support part (10). The top of the cap screw (70) can be slightly rounded so as not to damage the soft tissue.
    [058] In figures 4a-4d, the support system (12) further comprises a coronal support part (72). The coronal bearing portion (72) is adapted to be secured to the soft tissue-integrated bearing portion (10) by means of an additional screw (74). The additional screw (74) can also be comprised in the support system (12).
    [059] The coronal support part (72) has an apical end (76) that, at least partially, corresponds to the coronal end (14) of the support part integrated into the soft tissue (10), as seen in figures 4b 3 4d , so that an effective seal between the bearing parts (10) and (72) can be obtained. The coronal bearing portion (72) further comprises an internal hole (78) which extends between its coronal end (80) and the apical end (76). In the internal hole (78) a seat (82) is arranged. The coronal bearing portion (72) is further adapted to support a final retained cementitious restoration (not shown in Figures 4a-4d) such as a crown or bridge. To this end, an outer surface (84) of the coronal bearing portion (72) may include one or several longitudinal slots (86) for accommodating the cement. The outer surface (84) may also comprise a plurality of (smaller) transverse crevices or ridges (87). In addition, the coronal bearing portion (72) may be designed so that a portion of the flat peripheral top surface (18) remains exposed when the coronal bearing portion (72) is secured to the tissue-integrated bearing portion. soft (10) . The exposed portion of the flat peripheral top surface (18) can also serve as a support for the final retained cementitious restoration.
    [060] When in use, the coronal support part (72) is fixed to the soft tissue integrated support part (10) by means of an additional screw (74). The additional screw (74) has an externally threaded apical portion (88) for engagement with the internally threaded portion (62) of the support screw (56). Also, the additional screw (74) has a head (90) which rests on the seat (82) of the coronal bearing portion (72). The head (90) may have a coronal tool sleeve (92). After tightening the additional screw (74), the coronal bearing portion (72) is firmly attached to the soft tissue-integrated bearing portion (10). Thereafter, the final retained cementitious restoration can be installed on top of the coronal bearing portion 72 in a manner known per se.
    [061] Figures 5a-5c show a final retained screw restoration (68) secured to the soft tissue-integrated support portion (10) by means of an additional screw (74). The retained screw final restoration (68) in figures 5a-5c is implemented in the shape of a crown, but it can also be implemented in the shape of a bridge, etc.
    [062] The retained screw final restoration (68) has an apical end (94), at least partially corresponding to the coronal end (14) of the soft tissue-integrated support portion (10), as seen particularly in Figures 5b-5c , so that an effective seal between the soft tissue-integrated support portion (10) and a retained screw final restoration (68) can be achieved. The retained screw final restoration (68) may be designed such that no portion of the flat peripheral top surface (18) remains exposed when the retained screw final restoration (68) is secured to the soft tissue-integrated bearing portion. (10). This ensures a smooth transition between the retained screw final restoration (68) and the soft tissue-integrated support portion (10). The retained screw final restoration (68) further comprises an internal hole (96), which extends between its coronal end (98) and the apical end (94). In the internal hole (96) there is a seat (100).
    [063] When in use, the retained screw final restoration (68) is directly attached to the soft tissue-integrated support portion (10) by means of an additional screw (74). The additional screw (74) has an externally threaded apical portion (88) for engagement with the internally threaded portion (62) of the support screw (56). Also, the additional screw (74) has a head (90) which rests on the seat (100) of the retained screw final restoration (68). The head (90) may have a coronal tool sleeve (92). After tightening the additional screw (74), the retained screw final restoration (68) is firmly attached to the soft tissue-integrated support portion (10). Thereafter, the open portion of the inner hole (96) can be filled with a filler (not shown).
    [064] With reference to figure 6, the support system (12) can be used in the following way: first, the osseointegrated dental implant (40) is installed; (a) by a dental surgeon on the jaw bone (46) of a patient, in a manner known per se. The dental implant (40) should be installed so that the coronal end (42) of the dental implant (40) is substantially flush with the upper edge (44) of the jaw bone (46).
    [065] Then, after installation, the support part integrated to the soft tissue (10) is fixed (b) to the dental implant (40) by the surgeon, by means of the support screw (56) . This soft tissue-integrated support portion (10) will normally be removed after it has been attached to the implant (40). The outer surface (28) is then exposed to the soft tissue (64). The soft tissue-integrated support portion (10) can be secured to the dental implant (40) immediately after the dental implant (40) has been installed.
    [066] A prophetic, who is typically not the same person as the surgeon, therefore, is free to decide or select (c) which of the retained cement final restoration (66) and retained screw final restoration (68) should be used . This makes the present system very flexible.
    [067] The selected final restoration can then be fixed (d) as described and shown with respect to figures 4a-4d or figures 5a-5c, i.e. without having to remove the soft tissue-integrated support portion (10) and without breaking any soft tissue seals. Also, any intermediate operations such as fastening the cap screw or a print finish element to the soft tissue-integrated backing portion (10) can be performed without breaking any soft tissue seal. Step (d) can be carried out several weeks or months after step (b) (fixation of the support part integrated to the soft tissue (10)), in order to allow the osseointegration of the dental implant (40) . Alternatively, an immediate/previous load protocol can be used.
    [068] In addition, several support parts integrated into the soft tissue (10) of different diameters (widths) and/or different heights can be provided, to take care of various clinical situations. This makes the present system and method more flexible than a one-piece dental implant system integrated into soft tissue.
    [069] One skilled in the art can imagine that the present invention is in no way limited to the preferred embodiments described above. On the contrary, several modifications and variations are possible within the scope of the appended claims.
    权利要求:
    Claims (11)
    [0001]
    1. Support system (12) comprising: a soft tissue-integrated support part (10), adapted to be secured to an osseointegrated dental implant (40) by means of a support screw (56), and an additional screw ( 74) designed to selectively fix a coronal support portion (72), and a retained screw final restoration directly attached to the soft tissue integrated support portion (10), where the support screw (56) has an externally threaded apical portion configured for engagement with the osseointegrated dental implant (40), and an internally threaded coronal portion, and where the additional screw (74) has an externally threaded apical portion configured for engagement with the internally threaded coronal portion of the support screw (56) of such that the externally threaded apical portion of the additional screw (74) is at least partially positioned within the soft tissue-integrated support portion (10), where the tissue-integrated universal support portion. soft tissue (10) is adapted to be fixed immediately after the osseointegrated dental implant (40) has been installed in the maxillary bone and remains attached to the osseointegrated dental implant (40), where the soft tissue-integrated support part (10) has a external surface (28) designed for exposure to soft tissue (64), where the soft tissue-integrated support part (10) is designed to support prosthetic components retained by screw(s); characterized by the fact that an apical part of the part soft tissue-integrated support bracket (10) is configured to be positioned above a coronal end of the osseointegrated dental implant (40) such that the apical portion adjacent to and above the coronal end of the osseointegrated dental implant (40) has an outer diameter smaller than an outer diameter of the osseointegrated dental implant (40) at the coronal end, and where a coronal part of the soft tissue-integrated support part (10) has an outer diameter m greater than the outer diameter of the apical portion of the soft tissue-integrated support portion (10) configured to be positioned above the coronal end of the osseointegrated dental implant (40), and where the support system is adapted to selectively support a final dental restoration of retained cement (66), supported by a coronal support part (72) fixed to the support part integrated to the soft tissue by means of the additional screw (74), and also a final retained screw restoration (68), directly attached to the soft tissue integrated support part via an additional screw (74), where the selected final dental restoration can be secured to the soft tissue integrated support part (10) without breaking a soft tissue seal.
    [0002]
    2. Support system according to claim 1, characterized in that the support screw has an internally threaded coronal portion (62), and in that the additional screw has an externally threaded apical portion (88), for engagement with the internally threaded coronal portion of the support screw.
    [0003]
    3. Support system, according to any one of the preceding claims, characterized in that the support part integrated to the soft tissue has a flat peripheral top surface (18), arranged on the outer perimeter of the coronal end (14) of the support part integrated into the soft tissue.
    [0004]
    4. Support system according to claim 1 or 2, characterized in that the support part integrated to the soft tissue has at least one inclusion element (22a-22c) exposed to the coronal end of the support part integrated to the tissue soft, to prevent rotation of a component attached to the support part integrated into the soft tissue.
    [0005]
    5. Support system according to claim 4, characterized in that the peripheral flat top surface has an inner circular perimeter (20), and wherein said at least one inclusion element is at least one lobe ( 22a-22c), which extends apically from the inner circular perimeter (22a-c).
    [0006]
    6. Support system, according to claim 1, characterized in that the external surface is curved in the coronal-apical direction of the support part integrated to the soft tissue.
    [0007]
    7. Support system according to claim 6, characterized in that the curved outer surface extends from a larger coronal diameter (D1) to a smaller apical diameter (D2), primarily in a convex shape (30a ), then in a concave shape (30b).
    [0008]
    8. Support system according to claim 1 or 2, characterized in that the support part integrated into the soft tissue has an external surface (32) adapted to support an internal connecting surface (54) of the implant dental osseointegrated.
    [0009]
    9. Support system, according to claim 1 or 2, characterized in that it comprises several flat support parts of soft tissue, with different diameters and/or heights.
    [0010]
    10. Support system according to claim 1 or 2, characterized in that the prosthetic components retained by screw(s) comprise a cover screw (70), or a print finishing element.
    [0011]
    11. Support system according to claim 1 or 2, characterized in that it comprises is designed to support a bar as a prosthetic component retained by a screw.
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    同族专利:
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    US20140011160A1|2014-01-09|
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    GB201212125D0|2012-08-22|
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    法律状态:
    2017-10-24| B25G| Requested change of headquarter approved|Owner name: NOBEL BIOCARE SERVICES AG (CH) |
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-04-14| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-05-04| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-07-13| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/06/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    GB1212125.7|2012-07-09|
    GBGB1212125.7A|GB201212125D0|2012-07-09|2012-07-09|Abutment system and dental methods|
    PCT/EP2013/001901|WO2014008987A1|2012-07-09|2013-06-28|Abutment system and dental methods|
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