System installation interface

Abstract

The invention relates to a system mounting interface between a multi-piece superstructure carrier for carrying a superstructure and an implant with an internal thread, wherein a part of the superstructure carrier is arranged on the implant by means of an implant bolt. Here, the superstructure carrier consists of a superstructure main carrier and an additional carrier that is detachably screwed thereto. By means of the invention, the system mounting interface between the superstructure carrier and the implant is improved in such a way that, on the one hand, reliable support of the superstructure is ensured in the case of simple pre-assembly and final assembly, and, on the other hand, no perceptible tension occurs even in the case of static overdetermination in the case of implants with multiple load-bearing partial or total prostheses.

Description

Technical Field

[0001] The present invention relates to a system mounting interface between a multi-piece superstructure carrier for supporting a superstructure and an implant with an internal thread, wherein a part of the superstructure carrier is arranged on the implant by means of an implant bolt. Background Art

[0002] In dental implantology, osseointegrated implants for supporting prostheses are commonly used in the context of manufacturing single tooth replacements of prostheses. In this case, an implant, a kind of bolt, is screwed into a hole artificially created in the patient's jawbone. The screwed-in implant receives an implant post in the fabricated prosthesis. The latter is non-rotatably fixed in the implant by means of a special clamping device. Directly or indirectly on the implant post, for example by bonding, a superstructure constituting the visible dental crown is mounted. If a bridge, partial prosthesis or full prosthesis is required instead of a dental crown, the latter is formed by a plurality of combinations consisting of a plurality of implants and superstructure carriers.

[0003] A dental implant construction system is known from WO 2012 / 039 819A1, in which a superstructure carrier without an implant post is fixed to the implant by means of a connecting bolt. In order to be able to fix the implant post for supporting the prosthesis to the superstructure by means of a threaded connection, an implant disc with a central internal thread that is inclined relative to the center line of the implant is constructed on the superstructure carrier. Thus, the superstructure has two different holes that terminate in three openings of the superstructure carrier. Summary of the Invention

[0004] The problem underlying the present invention is to improve the system mounting interface between the superstructure carrier and the implant in such a way that, on the one hand, reliable support of the superstructure is ensured in the case of simple pre-assembly and final assembly, and on the other hand, in the case of a plurality of implants supporting partial prostheses or full prostheses, even with static overdetermination no measurable tension occurs.

[0005] This problem is solved by the features of claim 1. Here, the superstructure carrier consists of a superstructure main carrier and an additional carrier that is detachably screwed thereto. The superstructure main carrier has a notch that is open towards the additional carrier and the implant. In the notch, an internal thread is arranged in the region facing the implant. The implant bolt has two external threads that are arranged one behind the other with or without a spacing therebetween, wherein the first external thread is a drive external thread and the second external thread is a clamping external thread. The two external threads have different pitches. The drive external thread engages into the drive internal thread of the notch of the superstructure main carrier, while the clamping external thread engages into the clamping internal thread of the implant. The additional carrier has a notch that is open towards the superstructure and the superstructure main carrier. In the notch, an internal thread or a bolt head seat surface is arranged in the region facing the superstructure main carrier.

[0006] With the present invention, a system mounting interface is achieved, which connects the implant to the superstructure via the superstructure main carrier and the additional carrier. Here, the superstructure main carrier and the additional carrier between the implant and the superstructure can pivot relative to each other in the mounting joint on the one hand. On the other hand, there are a plurality of superstructure main carriers and additional carriers, which differ from each other only in that they have different bending angles. In this way, the implant, the superstructure main carrier, and the additional carrier form a carrier that is usually non-linearly extended and has two mounting joints, which are arranged in sequence by bolts and / or screws. All three substantially tubular members are enclosed on all sides except for an opening on one end side (the superstructure is held in the internal thread of this opening by means of a bolt or a screw), so that almost no stress concentration effect that adversely affects the strength of the members is generated along the newly formed carrier.

[0007] Of course, in the first mounting joint, the bolt can be replaced by a screw provided with a bolt head. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Other details of the present invention can be derived from the dependent claims and the following description of the schematically illustrated embodiments.

[0009] Figure 1 : shows a longitudinal sectional view of the system mounting interface through the implant-supported total prosthesis;

[0010] Figure 2 : shows a longitudinal sectional view through a prosthetic tooth replacement in the form of a semi-prosthesis;

[0011] Figure 3 : shows a longitudinal sectional view of the system mounting interface with multiple bends;

[0012] Figure 4 : shows Figure 3 in perspective view;

[0013] Figure 5: A perspective view of a long implant bolt is shown;

[0014] Figure 6 : A perspective view of an additional carrier bolt is shown;

[0015] Figure 7 : A perspective view of a short implant bolt is shown;

[0016] Figure 8 : A perspective view of an additional carrier bolt is shown;

[0017] Figure 9 : A perspective view of an upper structure main carrier with tapered struts is shown;

[0018] Figure 10 : A perspective view of a straight upper structure main carrier with spherical struts is shown;

[0019] Figure 11 : As Figure 10 , however, having a bent notch for receiving an additional carrier fixing device;

[0020] Figure 12 : As Figure 11 , but having a greater bend;

[0021] Figure 13 : A perspective view of a straight additional carrier with a support disk is shown;

[0022] Figure 14 : As Figure 13 , but having a bent additional carrier strut;

[0023] Figure 15 : As Figure 14 , but having a more strongly bent additional carrier strut;

[0024] Figure 16 : A longitudinal sectional view of Figure 15 is shown;

[0025] Figure 17 : A perspective view of a straight additional carrier without a support disk is shown;

[0026] Figure 18 : As Figure 17 , but as a bent additional carrier;

[0027] Figure 19 : As Figure 18 , but having a more strongly bent;

[0028] Figure 20 : A perspective view of a straight sampling pin with an anti-rotation device is shown; Detailed Description

[0029] Figure 1 A prosthetic tooth replacement (1) in the form of a full prosthesis is shown. The latter is mounted on a plurality of implants (10) screwed into the jawbone (3). The shown jawbone section is in the region of the molar on the right jawbone side from the patient's perspective. This section is, for example, oriented perpendicular to the occlusion plane. In the implant (10), an upper structure main carrier (20), for example bent, is seated in a conical seat (14), also see Figure 9 . This upper structure main carrier (20) is held in the conical seat (14) by means of a special bolt (60). An additional carrier (240) - screwed on by means of an additional carrier screw (160) - is mounted on each upper structure main carrier (20). The additional carrier (240) is part of a shape-stable metal or plastic reinforcement (7). In the reinforcement (7), a crown (9) made of ceramic is, for example, anchored. Between the gum (4) and the crown (9), the reinforcement (7) encloses an elastic plastic as an artificial gum (8) imitating the surrounding of the crown (9).

[0030] For cleaning and maintenance purposes, the full prosthesis is detached from the upper structure main carrier (20) at a cycle of, for example, half a year. To achieve this, the additional carrier screw (160) is made accessible at low cost. For this purpose, in the tooth replacement (1), the crowns (9) provided above the implants (10) are each provided with a hole (121), according to Figure 1 for example, a hole (122) in the reinforcement (7) is connected to this hole. A part of the hole (121) and the hole (122) is closed with a closing plug (123) made of a plastic that hardens under ultraviolet light. Between the closing plug (123) and the additional carrier screw (160), Teflon tape (124) is packed as a filling material in the central hole (244) of the additional carrier (240).

[0031] After the closing plug (123) has been successfully drilled out, the Teflon tape (124) can be pulled out so that the additional carrier screw (160) can then be loosened.

[0032] Figure 2 A bridge (2), for example, is shown as a prosthetic tooth replacement. The bridge consists of, for example, two to four incisors. A longitudinal section of the lower jaw extends through one of the front incisors, which are supported in the jawbone (3) by means of implants (10). Here, the crowns (9) are mounted directly on short additional carriers (240). The holes (121, 122) are closed as described above.

[0033] The base of the tooth replacement (1) of the prosthesis is an implant (10) that can be screwed into the jawbone. It is a hollow screw with, if necessary, a self-cutting, for example non-metric, external thread. Approximately in the upper half, the implant (10) has multi-stage notches (13), which are divided into three zones, seeFigure 1 , 2 and 3. The first zone (14) - which is located in the region of the implant shoulder (12) of the implant (10) - is an inner cone having a cone angle of, for example, 18 degrees. The inner cone (14) transitions into an inner hexagon (15) of the second zone that serves as an anti-rotation device (44). Instead of the inner hexagon (15), a double inner hexagon or other form-fitting or force-fitting anti-rotation geometry can also be used as the clutch geometry. The first and second zones (14, 15) form a first mounting seam (41).

[0034] The third zone (17) is a threaded hole having a clamping internal thread (82) that, during installation, receives a bolt (60) that holds the superstructure main carrier (20). The right-handed clamping internal thread (82) is, for example, an M1.6x0.35 thread according to DIN 13, addendum 1.

[0035] The main task of the superstructure main carrier (20) is to cooperate as the first base for the artificial crowns (1, 2) in the implant (10). It has a region facing the implant (10) and a region facing the additional carrier (240).

[0036] The region facing the implant (10) is an implant neck (42) having its outer cone (43) and its outer hexagon (44). The outer cone (43) and the outer hexagon (44) fit precisely into a notch (13) of the implant (10). In the axial direction pointing towards the tip of the implant (10), the end face of the outer hexagon (44) does not contact the notch (13).

[0037] An implant disk (31) is connected above the implant neck (42) and, if necessary, projects from the implant neck (42) with a continuous transition. The implant disk (31) has at least regionally or partially a planar shape or the shape of a frustum sleeve, with its conical angle opening towards the crown (9). For example, the lower side of the implant disk (31) also consists of a plurality of cones (Kegelkoni) emerging from one another, where each cone forms a different angle with respect to the center line (29). Here, the outer edge (33) of the implant disk (31) has a spacing from the center line (29) that is, for example, 4.5 mm when rotated 360° around the center line (29).

[0038] The conical implant strut (23) projects above the implant disk (31) having a planar edge upper side (37). The planar edge upper side (37) forms, if necessary, a bearing surface for the additional carrier (240). According to Figure 1 and Figure 2, the implant strut (23) is a conical strut (24) having an anti-rotation device (238) in the form of an external hexagon. The faces of the external hexagon are either oriented parallel to the center line (59) or are partial faces of a straight pyramid with six edges. The conical strut (24) and the anti-rotation device (238) form a centering second mounting seam (239).

[0039] If necessary, the superstructure main carrier (20) is provided with a titanium nitride coating at least above the implant disk (31). The layer thickness is, for example, 1 to 4 μm. Alternatively, a thin-walled ceramic or copolymer coating can also be applied there.

[0040] According to Figure 1 and Figure 2 , the superstructure main carrier (20) has a through notch (51) which has a bent portion in the upper region, and the bent portion has a bent angle of, for example, 11 degrees. The finished notch (51) consists of four zones. The first zone (52) and the second zone (53) are for inserting bolts (60). The lower first zone (52) is a cylindrical hole. Its center line (49) coincides with the center line (29). Connected to this first zone is a, for example, right-handed internal thread (72) as the second zone (53), which is marked as M1.8 0.2 according to DIN 13 Annex 2. The transition between the internal thread (72) and the hole (52) forms a flat positioning ring (54).

[0041] The upper fourth zone (57) is also a cylindrical hole with an internal thread (27). Its center line (59) intersects the center line (29) at an angle of, for example, 11 degrees in the third zone (56). The upper zone (57) is, on the one hand, for inserting a tool for tightening the bolt (60). On the other hand, it is also a support for the additional carrier screw (160). The third zone (56) is a rounded transition region, which, for example, has a region with a hemispherical peripheral surface.

[0042] According to Figure 3 and Figure 4 , the system uses a superstructure main carrier (21b) that terminates with a spherical strut (25) on the additional carrier side. The implant cone (43) tangentially (without discontinuities, edges or implant disks) transitions into the sphere of the spherical strut (25). The center line (59) encloses an angle of 158 degrees with the center line (29) at the intersection point (36). Thus, the bending angle of the center line (59) with respect to the center line (29) or the bend is 11 degrees. The intersection point (36) is simultaneously the center point of the sphere of the spherical strut (25). This applies both to the outer wall and to the wall of its central notch.

[0043] In Figures 10 to 12 , three other superstructure main carriers (21a, 21c, 21d) of this series are shown.

[0044] Figure 10 shows a straight upper structural main carrier (21a), in which the center line of the spherical strut (25) coincides with the center line of the structural main carrier (21a). According to Figure 3 , the spherical strut (25) terminates at the additional carrier (243) in a conical seat (28) in which four slots are machined. A generatrix of the peripheral surface of the conical seat (28) that intersects the center line (59) at a point engages tangentially with the spherical surface of the spherical strut (25).

[0045] The slots have four sides, the surface normals of which are oriented parallel to the center line (59) on the one hand and lie in a plane on the other hand. These four sides form an implant disk integrated into the envelope geometry of the conical seat (28) as disk segments (32). Their sum corresponds to the upper edge side (37) of the upper structural main carrier (20). Four further sides of the slots are in a plane that is oriented parallel to the center line (59) and is part of the side of a virtual cube. These sides, which are equidistant from the center line (59), constitute the anti-rotation device (238).

[0046] In Figure 11 the upper structural main carrier (21c) shown has a bend of 30°, while Figure 12 the upper structural main carrier (21d) in

[0047] Each bolt (60, 61) is generally divided into four regions. These regions are, in order from front to back, the articulation region (63), the drive region (70), the intermediate region (75), and the clamping region (80), see Figure 5 and Figure 7 .

[0048] A tool notch (65) is machined in the articulation region (63). It has, according to Figure 5 and Figure 7 for example, an internal hexagon socket head (66) with a wrench opening of, for example, 1.28 mm. Instead of an internal hexagon socket head, an internal hexagon, internal fine teeth, cross recess, slot, etc. can also be provided. Another drive variant is an external hexagon socket head or an external hexagon. If necessary, the hexagon socket head or hexagon shape is rounded in a barrel shape in the axial direction.

[0049] According to Figure 5 and Figure 7, the drive region (70) has a fine thread of type M1.8x0.2. Other fine threads as drive threads (71, 72) such as M2x0.25, M1.8x0.2, M1.6x0.25 or M1.6x0.2 are equally conceivable.

[0050] The intermediate region (75) connected to the drive region (70) serves as a spacer relative to the subsequent clamping region (80). According to Figure 5 , the intermediate region (75) consists of a cylindrical bolt (76) and a stop flange (78). If necessary, the outer diameter of the cylindrical bolt (76) is equal to the core diameter of the drive external thread (71).

[0051] Towards the clamping region (80), a sheet-like stop flange (78) is connected to the cylindrical bolt (76). The stop flange (78) has a wall thickness of, for example, 0.2 mm when the outer diameter is 1.8 mm. The stop flange (78) has a slotted opening (79) parallel to the bolt center line, which enables the venting of the threaded hole of the implant (10).

[0052] The clamping region (80) is a clamping external thread (81). Here, for example, a standard thread of M1.6x0.35 according to DIN 13 Annex 1 with a length of 1.46 mm is used.

[0053] Figure 1 The superstructure main carrier (20) after the insertion of the bolt (60) is shown. For installation, the bolt (60) is screwed into the region of the drive internal thread (72) using its drive external thread (71) until the stop flange (78) of the bolt (60) abuts against the positioning ring (54), see Figure 1 , 2 and 3. Now, the bolt (60) is non-losingly fitted in the position on the rear side of the superstructure main carrier (20). In this form, the combination of the superstructure main carrier (20) and the bolt (60) can be put on the market.

[0054] After the superstructure main carrier (20) is inserted into the stepped notch (13), the clamping external thread (81) is screwed into the clamping internal thread (82) of the implant (10) by rotating the bolt (60) clockwise. Thereby, the superstructure main carrier (20) is pulled into the implant (10). Once the implant cone (43) is firmly fitted in the inner cone portion (14) of the implant (10), the tightening process ends. All four pitches of the clamping external thread (81) are located in the clamping internal thread (82). Also, multiple pitches of the drive external thread (71) are located in the drive internal thread (72).

[0055] Figure 7The bolt (61) serves to fix the superstructure main carriers (21a, 21b, 21c, 21d) in the implant (10), see Figure 3 and 4 . It is largely equivalent to the bolt (60). Basically, the intermediate region (75) is configured to be shorter.

[0056] In Figures 13 - 16 , a group of additional carriers consisting of three additional carriers (221 - 223) is shown. Each of these additional carriers (221 - 223) has a base section (225), an additional carrier disk (228) for supporting the superstructure (1, 2), and an additional carrier strut (233).

[0057] All the additional carriers (221 - 223) of the group are adapted to be arranged on the superstructure main carriers (21a - 21d). Additional bolts (161) with opposite threads are located between the respective superstructure main carriers and the additional carriers placed thereon.

[0058] In Figure 8 , the additional bolt (161) is shown. It is constructed similarly to the bolts (60) and (61). A stop flange (178) is located between the drive region (170) and the clamping region (180), and the diameter of this stop flange is larger than the maximum thread diameter of the clamping region (180). The drive external thread (171) corresponds to a thread of M1.6x0.2 according to DIN 13. The larger - diameter clamping external thread (181) is an M1.8 standard thread. The tool notch machined into the drive region (170) is, for example, an internal hexagon socket head.

[0059] All the threads shown in the embodiments are metric threads according to DIN 13. Instead of metric threads, trapezoidal threads, square threads, serrated threads, round threads or buttress threads, pipe threads, curvilinear threads, UNF / UNC threads, etc. can also be used. All the bolts (60, 61) are made of, for example, TiAL6V4 or TiAl6V4 ELI.

[0060] The base section (225) of each additional carrier extends from the lower end face towards the additional carrier disk (228). The additional carrier strut (233) located above the additional carrier disk basically has a straight - conical shape that tapers upwards - i.e., in the direction away from the additional carrier disk (228). The additional carrier strut (233) has a plurality of circumferential grooves in the lower third, and these grooves are interrupted by laterally protruding anti - rotation tabs (234). Thus, an anti - rotation base for the superstructure (1, 2) to be carried is formed.

[0061] All the additional carriers (221 - 123) have through multi - stage notches (251), which have a conical seat (226) in the lower region, seeFigure 16 Four tabs (227), for example, which are shaped to fit into slots of the anti-rotation devices (32, 238), are provided in the conical seat (226). The conical seat (226) leads into a short cylindrical recess of the clamping area (180) for receiving the additional bolt (161), see Figure 3 A drive internal thread (172) is connected to the cylindrical recess, and the drive external thread (171) of the additional bolt (161) engages into the drive internal thread. The diameter of the cylindrical recess is larger than the core diameter of the drive internal thread (172) of the additional bolt (161). Thereby, a positioning ring is formed, against which the stop flange (178) abuts when pre-assembling the additional bolt (161).

[0062] The base section (225) of the additional carrier (222) is bent at an angle of 11 degrees relative to the additional carrier strut (233). In the additional carrier (223), this bend is 22 degrees.

[0063] Figures 17 to 20 The additional carriers (241 - 243) are shown. All of these additional carriers are made of straight or cylindrical tubes, which are smooth-walled in the lower region and have, for example, circumferential grooves (246) in the upper region. The tube has an outer diameter of, for example, 3.24 mm. In this embodiment, the groove has a radius of 0.45 mm. The pitch between the grooves is 1.1 mm. The minimum inner diameter of the tube is 1.62 mm.

[0064] According to Figure 18 , the smooth-walled area of the additional carrier (242) is bent at an angle of 11 degrees relative to the area equipped with grooves. In Figure 19 , the bend is 22 degrees. The geometry of the second mounting seam of the additional carriers (241 - 243) corresponds to the geometry of the additional carriers (221 - 223). A similar situation applies to the feeler gauge (270) shown in Figure 20 . The latter has a sampling tooth (271) protruding radially on one side at its free end. The sampleable sampling tooth (270) with a thickness of 2.5 mm has two parallel end faces and two tooth faces enclosing an angle of 40°.

[0065] By means of any combination of straight or bent superstructure main carriers (20; 21a - 21d) and straight or bent additional carriers (221 - 223; 240 - 243), taking into account the fact that the carriers can also be positioned rotatably relative to each other, multiple angular positions can be created between the positions of the implant and the additional carriers. Furthermore, if the anti-rotation devices between the respective superstructure main carriers (20; 21a - 21d) and the respective additional carriers (221 - 223; 240 - 243) are removed in one or the other case, the number of angular positions increases.

[0066] Description of Reference Numerals

[0067] 1Tooth replacements, prostheses, partial or complete prostheses, superstructures

[0068] 2Tooth replacements, prostheses, bridges, superstructures

[0069] 3 jaw

[0070] 4. Gums

[0071] 7 brackets, reinforcements

[0072] 8 Gum imitation, elastic

[0073] 9 crowns

[0074] 10 Implants

[0075] 12 Implant Shoulder

[0076] 13 notches, stepped

[0077] 14Inner cone, first zone, cone, conical seat

[0078] 15 Hexagon socket, second zone, clutch geometry

[0079] 17 threaded hole for the third zone of (82)

[0080] 20 bolts (60) on the upper structure main carrier

[0081] 21a Bolt (61) of the upper structure main carrier, straight

[0082] 21b bolt (61) of the upper structure main carrier, 22 ° bend

[0083] 21c bolt (61) upper structure main carrier, 30° bend

[0084] 21d bolt (61) upper structure main carrier, 45° bend

[0085] 23 implant pillars

[0086] 24 cone, hollow cone, cone pillar

[0087] 25 spherical, hollow ball, spherical pillar

[0088] 27 for internal thread (160)

[0089] 28 conical seat, slotted part, anti-rotation device

[0090] 29 Centerline

[0091] 31 Implant Disc

[0092] 32 - disk section, grooved part

[0093] 33 - edge

[0094] 36 - center point, intersection point

[0095] 37 - upper edge, planar

[0096] 41 - first mounting seam

[0097] 42 - implant neck

[0098] 43 - implant cone, outer cone part

[0099] 44 - anti - rotation device, external hexagon, clutch geometry

[0100] 51 - notch, bend if necessary

[0101] 52 - lower first zone, lower notch

[0102] 53 - second zone, lower notch

[0103] 54 - positioning ring

[0104] 56 - third zone, hemispherical circumferential surface

[0105] 57 - upper fourth zone; hole, cylindrical

[0106] 59 - center line of (56, 57)

[0107] 60 - bolt with stop flange, long

[0108] 61 - bolt with reverse thread

[0109] 63 - hinge area

[0110] 65 - tool notch

[0111] 66 - internal hexagon socket head, internal hexagon

[0112] 70 - drive area

[0113] 71 - drive external thread, external thread, drive thread, left - hand thread

[0114] 72 - drive internal thread, internal thread, drive thread, left - hand thread

[0115] 73 - drive pair, drive thread, pair

[0116] 75 - intermediate area

[0117] 76 - stud

[0118] 78 - stop flange, positioning ring

[0119] 79 Grooving

[0120] 80 Clamping area

[0121] 81 Clamping external thread, external thread, clamping thread

[0122] 82 Clamping internal thread, internal thread, clamping thread

[0123] 83 Clamping pair, clamping thread, pair

[0124] Hole in 121(9)

[0125] Hole in 122(7)

[0126] 123 Sealing plug for (9) and / or (240)

[0127] 124 Filling material, not bonded; Teflon tape

[0128] 151 Notch, bend if necessary

[0129] 160 Additional carrier bolt with head, short

[0130] 161 Additional carrier bolt with reverse thread; additional carrier fixing device

[0131] 162 Bolt head support surface, conical

[0132] 165 Tool notch

[0133] 166 Internal hexagon

[0134] 167 Bolt head, radially external cylindrical

[0135] 168 External thread

[0136] 170 Driving area

[0137] 171 Driving external thread, external thread, driving thread, left-handed thread

[0138] 172 Driving internal thread, internal thread, driving thread, left-handed thread

[0139] 173 Driving pair, driving thread, pair

[0140] 178 Stop flange, locating ring

[0141] 180 Clamping area

[0142] 181 Clamping external thread, external thread, clamping thread

[0143] 182 Clamping internal thread, internal thread, clamping thread

[0144] 183 Clamping pair, clamping thread, pair

[0145] 185 External thread, right-handed thread

[0146] 221 Additional carrier with a disc, straight

[0147] 222 Additional carrier with an 11° bend

[0148] 223 Additional carrier with a 22° bend

[0149] 225 Base section

[0150] 226 Tapered seat

[0151] 227 Tab

[0152] 228 Additional carrier disc

[0153] 233 Additional carrier strut

[0154] 234 Anti-rotation tab

[0155] 238 Anti-rotation device, external quadrilateral, clutch geometry

[0156] 239 Second mounting joint

[0157] 240 Additional carrier, short with grooves, straight

[0158] 241 Additional carrier, long with grooves, straight

[0159] 242 Additional carrier, long with an 11° bend

[0160] 243 Additional carrier, long with a 22° bend

[0161] 244 Hole, center

[0162] 246 Groove

[0163] 251 Notch, bent if necessary

[0164] 270 Feeler gauge

[0165] 271 Sampling tooth

Claims

1. A system installation interface, which is located between a multi-piece superstructure carrier (20, 21a - 21d; 221 - 223; 240 - 243) carrying a superstructure (1, 2) and an implant (10) having an internal thread (82), wherein a part of the superstructure carrier (20, 21a - 21d; 221 - 223; 240 - 243) is arranged on the implant (10) by means of implant bolts (60, 61). Wherein the superstructure carrier (20, 21a - 21d; 221 - 223; 240 - 243) consists of a superstructure main carrier (20, 21a - 21d) and an additional carrier (221 - 223; 240 - 243) that is detachably screwed to the superstructure main carrier. Wherein the superstructure main carrier (20, 21a - 21d) has a notch (51) that is open towards the additional carrier (221 - 223; 240 - 243) and the implant (10). Among them, An internal thread (72) is arranged in the notch (51) in the region facing the implant (10). Wherein the implant bolts (60, 61) have two external threads (71, 81) that are arranged one behind the other with a spacing or without a spacing between them, wherein the first external thread is a drive external thread (71) and the second external thread is a clamping external thread (81). Wherein the two external threads (71, 81) have different pitches. Wherein the drive external thread (71) is fitted into the drive internal thread (72) of the notch (51) of the superstructure main carrier (20, 21a - 21d), while the clamping external thread (81) is fitted into the clamping internal thread (82) of the implant (10). Wherein the additional carrier (221 - 223; 240 - 243) has a notch (151) that is open towards the superstructure (1, 2) and towards the superstructure main carrier (20, 21a - 21d). Wherein, in the notch (151), an internal thread (172) or a bolt head seating surface (168) is arranged in the region facing the superstructure main carrier (20, 21a - 21d).

2. The system installation interface according to claim 1, characterized in that, The superstructure main carrier (20, 21a - 21d) has implant struts (23), and the implant struts are implemented to be bent relative to the implant cone (43).

3. The system installation interface according to claim 2, characterized in that, The implant struts (23) of the superstructure main carrier (20, 21a - 21d) have a conical or frustoconical shape (24, 25).

4. The system installation interface according to claim 2, characterized in that, The additional carrier (221 - 223; 240 - 243) is either a straight hollow extension of the implant strut (23) or forms a bent tubular member.

5. The system installation interface according to claim 1, characterized in that, The implant (10) and the superstructure main carrier (20, 21a - 21d) have at least partially complementary clutch geometries (44) to ensure the anti-rotation of the first mounting joint (41).

6. The system installation interface according to claim 1, characterized in that, The upper structure main carriers (20, 21a - 21d) and the additional carriers (221 - 223; 240 - 243) have at least partially complementary clutch geometries (238) to ensure anti-rotation in the second mounting joint (239).

7. The system installation interface according to claim 1, characterized in that The notches (51, 151) of the respective components (20, 21a - 21d; 221 - 223; 240 - 243) run across between the front end and the rear end.

8. The system installation interface according to claim 1, characterized in that Two drive threads form a drive pair (73, 173) and two clamping threads form a clamping pair (83, 183), wherein the threads of the two pairs (73, 83; 173, 183) have different pitches in the case of the same pitch sign.

9. The system installation interface according to claim 8, wherein The threads (71, 72; 171, 172) of the drive pair (73, 173) have a smaller pitch than the threads (81, 82; 181, 182) of the clamping pair (83, 183) in the case where the pitch signs of the threads (71, 72, 81, 82; 171, 172, 181, 182) are the same.

10. The system installation interface according to claim 8, characterized in that, The threads (71, 72, 81, 82; 171, 172, 181, 182) of the two pairs (73, 83; 173, 183) have different pitch signs.

11. The system installation interface according to claim 8, characterized in that, The threads (71, 72; 171, 172) of the drive pair (73, 173) each have a negative pitch sign, that is, left-handed threads (71, 72; 171, 172).

12. The system installation interface according to claim 8, wherein The threads of the pairs (73, 83; 173, 183) have different thread diameters.

13. The system installation interface according to claim 1, wherein The bolts (60, 61; 160, 161) have positioning rings (54, 78; 154, 178) between the external threads (71, 81; 171, 181) or behind the external threads in the clamping screwing-in direction.

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