Abutment system, and kit comprising such a system

Abstract

The invention relates to an abutment system (1), which is designed to be mounted on a dental implant implanted in a jaw bone, the abutment system comprising an implant part (2) and a screw-in part (3). The implant part (2) has a passage (21), a first head portion (22), and an implant connection portion (23) designed for insertion into a corresponding abutment receptacle of the implant. The screw-in part (3) has a second head portion (31) and a screw portion (32) having an external thread (321). The passage (21) of the implant part (2) is shaped to receive the screw-in part (3) in a manner protruding through the implant part (2) such that the screw portion (32) of the screw-in part (3) protrudes at least partially out of the implant part (2) on an implant side (29) of the implant part (2) and such that the second head portion (31) protrudes out of the implant part (2) on a prosthesis side (28) of the implant part (2) opposite the implant side (29). The implant connection portion (23) of the implant part (2) comprises a first index region (24) having a rotationally asymmetrical outer circumference. The first head portion (22) of the implant part (2) and the second head portion (31) of the screw-in part (3) form a superstructure connection region (4) when the screw-in part (3) is received in a manner protruding through the implant part (2). The superstructure connection region (4) comprises a second index region (25) having a rotationally asymmetrical outer circumference. The second head portion (31) of the screw-in part (3) is equipped with a screw socket (34) having an internal thread.

Description

DESCRIPTION title Abutment system and kit with such a Technical field

[0001] The invention relates to an abutment system and a kit comprising such an abutment system. Abutment systems of this type are used for mounting a dental superstructure, such as a crown or a bridge, onto a dental implant embedded in a jawbone. State of the art

[0002] Nowadays, in dental applications, missing, damaged, or diseased teeth are frequently replaced with artificial dentures. This regularly involves inserting implants into a patient's jawbone to replace the tooth roots and connecting them to a superstructure or prosthetic restoration, such as a crown or bridge. Abutments are commonly used to connect these superstructures to the implants. These abutments serve as support pillars and are placed onto the implants. Each abutment has a connecting structure at its occlusal end, the end furthest from the jawbone or implant. The superstructure is then attached to the abutment via this connecting structure, primarily by bonding or screwing it to the implant.

[0003] In known embodiments, implants are designed such that, after insertion into the jawbone, they project from the bone into the soft tissue or gingiva. Such so-called tissue-level implants can have a shoulder at their occlusal end against which the superstructure rests when it is attached to the implant via the abutment. The superstructure is supported at the shoulder of the implant. In other known designs, the implant is inserted almost entirely into the jawbone. With such so-called bone-level implants, an abutment is typically used that has a shoulder section extending into the gingiva, against which the superstructure can be supported.

[0004] In modern dental procedures, the placement of implants, the design of abutments, and the fabrication of crowns are precisely planned, for example, using image-based planning software. To ensure that an abutment can be positioned precisely on the implant as planned, implant-abutment connection structures are often indexed, meaning the abutment can only be attached to the implant in a single position or a limited number of orientations. Similarly, the superstructures and the associated connection structures of the abutment are also frequently designed with indexing in mind.

[0005] Screws are typically used for cementless or adhesive-free attachment of abutments to implants and of superstructures to abutments. The abutments often feature a screw channel through which the implant screw is inserted and connected to the implant. For example, US 2015 / 0305836 A1 shows such an abutment. A thread may be provided in an occlusal area of ​​the screw channel into which a prosthetic screw can be inserted to secure the superstructure. Meanwhile, temporary components such as healing caps or healing abutments, or impression posts, can also be directly connected to the implant in the same manner.

[0006] A common problem with conventional dental prostheses is that the screw connection for attaching the abutment to the implant and the screw connection for attaching the superstructure to the abutment interfere with each other. If a continuous screw channel is provided in the abutment, typically one of the two threads must be significantly smaller than the other. This can compromise stability if the thread or screw receptacle is made comparatively large. This can lead to material fatigue and potentially even fracture of the abutment or one of the screws under load. Or one of the threads or the screw receptacle is made comparatively small, which in turn can lead to an insufficiently stable screw connection.

[0007] The present invention is therefore based on the objective of proposing an abutment system or a kit with an abutment system with which comparatively robust screw connections between implant and abutment and simultaneously between abutment and superstructure are possible. Description of the invention

[0008] The problem is solved according to the invention by an abutment system as defined in independent claim 1, and by a kit as defined in independent claim 18. Advantageous embodiments of the invention are set forth in the dependent claims.

[0009] In a first aspect, the invention is an abutment system designed for mounting on a dental implant embedded in a jawbone. The abutment system can comprise the following: an implant part having a passage, a first head section, and an implant connection section designed for insertion into a corresponding abutment receptacle of the implant, and a screw-in part having a second head section and a screw section with an external thread.

[0010] The through-hole of the implant part can be shaped to accommodate the screw-in part projecting through it, such that the screw section of the screw-in part projects at least partially out of the implant part on one implant side, and the second head section projects out of the implant part on the prosthesis side opposite the implant side. The implant connection section of the implant part can include a first index area with a rotationally asymmetric outer circumference. The first head section of the implant part and the second head section of the screw-in part can form a superstructure connection area when the screw-in part is accommodated projecting through the implant part. The superstructure connection area can include a second index area with a rotationally asymmetric outer circumference. The second head section of the The screw-in part can be equipped with a screw socket having an internal thread.

[0011] Generally, the term "jaw" as used here can refer to a patient's upper or lower jaw. It can include the corresponding jawbone, the surrounding soft tissue, and any teeth rooted in the jawbone. It can also include implants or other components that are integrated into or attached to the jawbone.

[0012] The term "implant" in this context refers to dental implants designed for insertion or implantation into a patient's jawbone. Typically, implants are post-like, prefabricated alloplastic components that are inserted into the jawbone. Once inserted, dental implants serve as supports for dentures or superstructures, thus fulfilling the function of artificial tooth roots. They are usually either screwed or inserted into the jawbone. After insertion or implantation, they typically fuse with the surrounding bone (osseointegration) within three to six months, forming a stable and relatively load-bearing support unit. Today, dental implants are mostly made of titanium, but ceramic materials such as zirconium oxide or plastics such as polyetheretherketone (PEEK) are also used.

[0013] The term "abutment" generally refers to a connecting element between an implant and a prosthetic restoration or superstructure, such as a crown, bridge, or denture. Abutments are typically associated with implant prosthetics. They generally serve as abutments and anchors, providing stability to the prosthetic restoration. Abutments are usually either prefabricated or custom-made in dental laboratories from various suitable materials.

[0014] The abutment system according to the invention can be manufactured from any suitable material, similar to conventional abutments. Advantageously, it, or at least its first head section and / or its second head section, is at least partially conditioned so that it can be scanned efficiently. For this purpose, For example, a coloring or coating can be provided. An abutment system designed in this way can be scanned directly, eliminating the need for a separate scan body or similar auxiliary component.

[0015] In the context of this invention, the term "superstructure" refers to a dental prosthetic restoration. Specifically, it can denture a prosthesis, such as a crown, bridge, or other type of prosthesis, that is typically attached to a dental implant via an abutment or dental base. Superstructures are usually installed after the implants have healed—that is, approximately three to six months after placement or insertion. Superstructures can be screwed to the implant or abutment or cemented in place. For example, the superstructure can be screwed into the internal thread of the screw socket (second head section of the screw-in part) with a torque of approximately 35 Newton centimeters (N-cm).

[0016] The implant and screw components can be made of any suitable material, such as titanium, non-precious metal, or zirconia ceramic. Advantageously, both parts are designed as a single piece and / or monolithically. They can be longitudinal or post-shaped and have a longitudinal axis.

[0017] The first and second index zones allow for two things: firstly, the implant component can be mounted on the implant in a single position or orientation, or in a limited number of positions or orientations; and secondly, the superstructure can be mounted on the abutment system in a single position or orientation, or in a limited number of positions or orientations.

[0018] The term "position," in the context of a specific element, refers to its location and orientation. In particular, it can refer to the location and orientation of the element relative to another element. For example, the position of the implant component can be its location and orientation in relation to the implant inserted into the jawbone.

[0019] The term "rotationally asymmetric" refers, in relation to the first and second index areas, to the fact that the outer circumference of the implant connection section of the implant component, or the outer circumference of the superstructure connection area, does not appear the same after a rotation by any partial rotation about a longitudinal or central axis, respectively. While the outer circumferences may appear the same after rotations of some specific partial rotations, they will not appear the same after rotations of every possible partial rotation. For example, a cylinder with a square or other polygonal base is rotationally asymmetric in this sense. In particular, the outer circumference of a cylinder with a square base appears the same after rotations of 90°, 180°, and 270°, but not after rotations of any other partial rotation, such as a partial rotation of 30°.In contrast, a cylinder with a circular base is rotationally symmetrical about its central axis, since its circumference looks the same after every possible partial rotation. The term "partial rotation" in this context refers to a portion of a full 360° rotation. Therefore, a partial rotation is any rotation of less than 360°.

[0020] Advantageously, the first index area of ​​the implant connection section, and especially the second index area of ​​the superstructure connection section, is designed with rotational asymmetricity, allowing connection in precisely one rotational position. This enables the precise predefined alignment of the implant to the abutment system and the superstructure to the abutment system. It can be particularly advantageous if the second index area has a rounded, rotationally asymmetric shape. For example, it can have a trioval cross-section, with the radii of the trioval geometry being chosen differently for unambiguous identification. Such a rounded, unambiguous index area, for example, as a trioval cone, can enable comparatively efficient manufacturing, since rounded geometries are relatively easy to mill.Secondly, a backlash-free connection between the superstructure and the abutment system can be achieved with precise and unambiguous alignment. With a backlash-free or backlash-minimized connection, pumping effects that can lead to the accumulation of bacteria or contaminants can be avoided or significantly reduced.

[0021] The abutment system according to the invention is designed to be screwed and mounted onto the implant via the screw-in component, i.e., the abutment system itself. This eliminates the need for a separate through-hole for an implant screw; instead, the abutment itself, or rather its screw-in component, acts as the implant screw. This allows the occlusal portion of the abutment system, or the two-part abutment, to be designed independently of its connection to the implant. In particular, the first head section of the implant component and the second head section of the screw-in component can be optimized for a functional connection with the superstructure without considering the attachment of the abutment to the implant.For example, a thread can be incorporated into the head of the screw-in component, optimized for a stable connection to the superstructure without compromising the design or function due to a passage for an implant screw. This independence can be particularly advantageous in the typically limited space available and the considerable forces that can act on the dental prosthesis.

[0022] The passage in the implant component can extend axially through the implant component. It can be designed to perform certain functions. For example, it can include a seat for a complementary pressure area of ​​the screw component. When the abutment system is assembled, the pressure area of ​​the screw component is pressed against the seat of the implant component as it is tightened, thus fixing the abutment system to the implant. Such a seat can, for example, be designed as a step in the passage.

[0023] Preferably, the second index area of ​​the superstructure connection area is formed on the first head section of the implant part. This design makes it possible to efficiently ensure that the superstructure and the implant, and thus the jawbone, are positioned relative to each other in a predefined manner via the abutment system. In particular, the implant part and the implant can be predefinedly aligned relative to each other via the first index area, and the superstructure and the implant part via the second index area. The screw-in part, on the other hand, can be independent of this. so that the final position when screwing the implant system onto the implant has no influence on the alignment of the superstructure to the implant or to the jawbone.

[0024] Preferably, the passage of the implant part is equipped with an internal thread that is advantageously complementary to the external thread of the screw section of the screw-in part.

[0025] The term "complementary" refers to external and internal threads in that they fit together and, in particular, can be screwed together in an interlocking manner. They are therefore typically designed to match each other in terms of outside diameter, inside diameter, thread depth, shape, and pitch.

[0026] The complementary design allows the external thread of the screw section of the insert to engage with the internal thread of the implant's through-hole and interact with it as the insert extends through the implant part's through-hole. This allows the insert to be screwed into and out of the implant part, permitting axial movement of the two components relative to each other. The insert can then be held in a desired axial position on the implant part. For example, when placing the abutment system onto the implant, the screw section may protrude only minimally, or not at all, thus preventing it from interfering with insertion into the corresponding receptacle of the implant.

[0027] Alternatively, the screw section of the screw-in part can be equipped with a separate external thread, distinct from the external thread of the screw section of the screw-in part. This allows the internal thread of the through-hole to be positioned at a preferred location. For example, it can be located in an area of ​​the screw-in part where sufficient space or material is available without compromising the robustness of the implant component. Furthermore, the use of two separate external and internal threads allows the thread properties to be optimized for their respective intended functions.

[0028] Preferably, the internal thread of the screw socket of the insert and the external thread of the screw section of the insert are dimensioned with approximately the same diameter. This allows for screw connections of approximately equal strength between the superstructure and the abutment system, and between the abutment system and the implant. This results in a particularly stable construction.

[0029] The threads of the screw socket and the screw section can be matched so that, with an approximately analogous screw force applied, the superstructure can be detached from the abutment system without the abutment system detaching from the implant. For example, the two threads can have different pitches or thread counts.

[0030] Preferably, however, the internal thread of the screw socket of the insert is designed to be complementary to the external thread of the screw section of the insert. Such a design of the two threads for attaching the abutment system to the implant and the superstructure to the abutment system enables advantageously robust assembly. In particular, analogous connection forces can be achieved in both connections. To nevertheless allow the superstructure to be detached from the abutment system without the abutment system detaching from the implant, additional structures can be provided, such as the external and internal cones described below.

[0031] The internal thread of the screw socket of the screw-in part can also correspond to the internal thread of the through-hole of the implant part.

[0032] Preferably, the superstructure connection area includes a conical section. Such a conical section enables the superstructure to be placed comfortably and securely onto the abutment system.

[0033] The conical area of ​​the superstructure connection preferably has an outer surface inclined at 15° ± 5° to a longitudinal axis of the abutment system. This inclination allows for both easy placement of the superstructure and precise guidance of the superstructure during placement. Such a cone also enables... Divergence compensation to a certain extent is achieved when superstructures are placed on multiple abutment systems simultaneously.

[0034] The conical section of the superstructure connection area is preferably formed on the second head section of the screw part. Since the second head section typically projects beyond the first head section and thus forms the occlusal end region of the abutment system, such a design is particularly advantageous when mounting the superstructure to the abutment system.

[0035] The superstructure connection area can preferably have a further conical section formed on the first head portion of the implant part. This further conical section can have an outer surface inclined analogously or differently to the conical section. The outer surface of the further conical section can be less inclined than the outer surface of the conical section. In an extreme embodiment, the outer surface of the further conical section can lie virtually parallel to the longitudinal axis of the abutment system.

[0036] The superstructure connection area can include a transition section located between the conical section and the subsequent conical section. This transition section of the superstructure connection area may, for example, have an outer surface that is inclined more steeply to a longitudinal axis of the abutment system than the outer surface of the conical section. For example, the outer surface of the transition section may be inclined at 45° ± 5° to the longitudinal axis of the abutment system.

[0037] The transition section of the superstructure connection area can preferably be formed on the second head section of the screw part.

[0038] Preferably, the implant component comprises a platform section having a support surface extending outwards with respect to a longitudinal axis of the implant component. The support surface can be designed, in particular, to support a prosthesis or the superstructure when connected to the abutment system. This allows forces to be absorbed efficiently and robustly.

[0039] The support surface of the platform section of the implant part preferably extends substantially radially with respect to the longitudinal axis of the implant part. outwards. In particular, the support surface can be located almost perpendicular to the longitudinal axis of the implant part and thus form a stop for the superstructure.

[0040] The platform section of the implant component preferably comprises a gingival or bone contact surface. This contact surface can be a radial outer surface of the platform section. It can be shaped, in particular, to correspond to a preferred gingival or bone channel and / or be designed to form the gingival or bone channel. With this design, the abutment system can be connected to the implant during the healing phase. For example, a prefabricated or custom-made healing cap can be placed on the platform section immediately, i.e., directly during the assembly of the abutment system, and this cap remains in place during the healing process of the dental implant.Such early assembly of the abutment system can avoid an additional appointment with the dentist and prevent irritation or injury to particularly sensitive areas of the gingiva near the bone when inserting or removing the healing cap.

[0041] Preferably, the through-hole of the implant part comprises an inner conical section and the screw-in part an outer conical section, wherein the inner conical section of the through-hole of the implant part and the outer conical section of the screw-in part are designed to correspond to each other so that they abut each other when the screw-in part is inserted through the implant part. In this way, the implant and screw-in parts can preferably be clamped or connected to each other. In particular, such a design makes it possible to achieve a release force or release torque that is higher than the torque applied for screwing in. For example, the superstructure can be screwed onto the abutment system with the same torque as the abutment system is screwed onto the implant, and the superstructure can still be loosened without the abutment system detaching from the implant.

[0042] In another aspect, the invention comprises a kit with an abutment system as described above and an insertion tool. The insertion tool can include a socket into which the second head section of the screw-in part can be inserted, and optionally a screw for securing the second head section. the screw-in part corresponds. In particular, the screw and screw socket can correspond by having complementary external and internal threads.

[0043] The receptacle of the insertion tool may be equipped with an opening through which the screw or an analogous second screw can be screwed into the internal thread of the screw socket of the second head section of the insertion part when the second head section of the insertion part is inserted into the receptacle of the insertion tool.

[0044] Alternatively or additionally, the socket of the insertion tool and the second head section of the screw-in part can be shaped to fit together, forming a clamping connection. This clamping connection can be sufficiently stable to allow the screw-in part to be held by the insertion tool for insertion into an implant.

[0045] For example, the second head section of the screw-in part can be designed with one or more engagement sections, and the insertion tool's receptacle can have a matching shape, creating a clamping connection. This clamping connection allows the screw-in part to be held by the insertion tool. Sufficient torque can then be transferred from the insertion tool to the screw-in part, for example, via the side surfaces of the engagement sections.

[0046] The kit according to the invention allows the abutment system according to the invention to be used efficiently and in a preferred manner. In particular, the insertion tool, possibly in conjunction with the screw, can enable the insertion tool and the screw-in part of the abutment system to be connected to each other in a rotationally fixed manner. The insertion tool can be screwed or clamped onto the screw-in part by means of the screw when the head section of the screw-in part is located in the recess of the insertion tool. By then rotating the insertion tool, the screw-in part can be screwed into the implant, protruding through the implant part. The screw can be used to attach a superstructure, such as a crown or a bridge, and / or to mount the insertion tool to the abutment system.

[0047] This design of the insertion tool and screw allows the same structure of the insertion part to be used for attaching the insertion tool to the insertion part as is used for mounting the superstructure to the abutment system. Thus, the appropriate insertion tool eliminates the need for a separate structure for screwing the abutment system to the implant. The shape and design of the abutment system, and in particular the first and second head sections, can be shaped and configured for a preferred connection with the superstructure.

[0048] Preferably, the insertion tool is designed with a ratchet gripping section. This allows a ratchet or torque ratchet to be applied to the insertion tool and the screw part to be tightened with the desired fastening force. For example, after the implant has been inserted into the jawbone, the abutment system can be screwed into the implant by hand or with approximately 20 N-cm. Once the implant has integrated, the abutment system can then be definitively tightened, for example, with a force of 35 N-cm or according to the manufacturer's specifications. In such an application, the abutment system can be used both as a healing abutment and simultaneously as a definitive abutment.The abutment system can be attached to the implant with approximately the same torque as the superstructure to the abutment system, or depending on the material used in the superstructure, according to the specifications of the respective manufacturer.

[0049] Preferably, the kit or abutment system comprises a further implant part, wherein the implant part and the further implant part are each designed with a platform section as described above, and wherein the platform section of the implant part and the platform section of the further implant part are dimensioned differently.

[0050] The kit with several different implant parts can also be designed without an insertion tool as described above. That is, one embodiment of a kit can include an abutment system as described above, wherein the abutment system comprises one implant part with a platform section and another implant part with a platform section, the platform section of the first implant part and the platform section of the second implant part being of different dimensions.

[0051] The differently sized platform sections allow for a selection of the implant component adapted to the conditions present in the patient's mouth.

[0052] The first outer diameter of the support surface of the platform section of the implant part and the second outer diameter of the support surface of the platform section of the further implant part are preferably different. This allows a suitable or optimized abutment system with a suitable or optimal platform size (height and outer diameter) to be used for the patient, depending on the size of the tooth to be replaced or the available space.

[0053] The first outer diameter of the support surface of the platform section of the implant part can be selected from approximately 3.5 mm to approximately 4.5 mm (e.g., 4 mm), and the second outer diameter of the support surface of the platform section of the further implant part can be selected from approximately 4.5 mm to 5.5 mm (e.g., 5 mm). These two support surface size options allow for a wide range of applications in many patients. The kit can also include a selection of implant parts with more than two different platform section outer diameters.

[0054] The first height of the platform section of the implant part and the second height of the platform section of the further implant part are preferably different. Different heights of the platform section allow, in particular, the individual gingival situation of a patient to be taken into account.

[0055] The first height of the platform section of the implant part is in the range of approximately 0.8 mm to approximately 1.6 mm (e.g., 1.2 mm), and the second height of the platform section of the other implant part is in the range of approximately 1.6 mm to approximately 2.8 mm (e.g., 2.2 mm). These two heights already adequately address the needs of a large number of patients. The kit can also include a selection of implant parts with more than two different platform section heights. Brief description of the drawings

[0056] Further advantageous embodiments of the invention will become apparent from the following description of exemplary embodiments of the invention with the aid of the schematic drawing. In particular, the abutment system and the kit according to the invention are described in more detail below with reference to the accompanying drawings and exemplary embodiments. Figure 1 shows a schematic side view of a first exemplary embodiment of an abutment system according to the invention, in which a screw-in part is not fully inserted into an implant part; Fig. 2 shows a schematic side view of the abutment system of Fig. 1, with the screw-in part fully inserted into the implant part; Fig. 3 shows a schematic side view of an exemplary embodiment of a Screw-in tool; Fig. 4 shows a schematic side view of an embodiment of a kit according to the invention with the abutment system of Fig. 1 and the screw-in tool of Fig. 3; Fig. 5 is a schematic side view of the abutment system of Fig. 2 with a mounted superstructure; Fig. 6 shows a schematic side view of a second embodiment of an abutment system according to the invention placed on an implant; Fig. 7 shows a schematic side view of a third embodiment of an abutment system according to the invention, in which a screw-in part is not fully inserted into an implant part; Fig. 8 shows a schematic side view of a section of the screw-in part of the abutment system of Fig. 7, wherein the screw-in part is rotated by 90° about its longitudinal axis compared to Fig. 7; Fig. 9 shows a schematic side view of the abutment system of Fig. 7, with the screw-in part fully inserted into the implant part; Fig. 10 shows a schematic side view of an embodiment of a kit according to the invention with the abutment system of Fig. 7 and an embodiment of an insertion tool. Way(s) to implement the invention

[0057] Exemplary embodiments of the invention are shown in the drawings, which are all schematic in nature. The illustrations in the figures are purely for illustrative purposes. The figures are provided for illustrative purposes only and are neither to scale nor complete. For example, in a drawing, some areas of the depicted components may be partially cut away or shown transparently, while other areas are not. Similarly, some areas of a drawing may be shown in perspective, while others in the same drawing may not. Furthermore, the dimensions of certain sections of the depicted components may not be uniform across all figures. The omission of an aspect in the description or a figure does not imply that this aspect is also missing in the corresponding embodiment. Rather, such an omission may serve to improve clarity and prevent repetition. To avoid repetition in the figures and the accompanying descriptions of the various aspects and embodiments, certain features should be understood as common to different aspects and embodiments.

[0058] Certain terms are used in the following description for practical reasons and are not to be understood restrictively. The words "right," "left," "below," and "above" denote directions in the drawing to which reference is made. The terms "inward," "outward," "below," "above," "left," "right," or similar are used to describe the arrangement of designated parts relative to one another, the movement of designated parts relative to one another, and the directions toward or away from the geometric center of the invention and of designated parts thereof, as shown in the figures. These spatial relative terms also include positions and orientations other than those shown in the figures. For example, if a part shown in the figures is turned upside down, elements or features described as "below" are then "above."The terminology includes the words explicitly mentioned above, derivatives of the same, and words of similar meaning.

[0059] The following rule applies to all further descriptions: If a figure contains reference symbols for the purpose of graphical clarity, but these are not mentioned in the immediately associated descriptive text, reference is made to their explanation in preceding figure descriptions. Furthermore, if the descriptive text immediately associated with a figure mentions reference symbols that are not included in the figure itself, reference is made to the preceding and following figures. Similar reference symbols in two or more figures represent similar or identical elements.

[0060] Fig. 1 shows a two-part abutment 1 designed for mounting on a dental implant embedded in a jawbone as a first embodiment of an abutment system according to the invention. The abutment 1 is two-part in that it comprises a monolithic titanium implant part 2 and a monolithic titanium screw-in part 3. The screw-in part 3 has a vertical longitudinal axis 35 and the implant part 2 a vertical longitudinal axis 26, wherein the two longitudinal axes 26, 35 of the screw-in part 3 and the implant part 2 coincide and thus form a longitudinal axis 11 of the abutment 1.

[0061] The implant part 2 comprises a first head section 22, an implant connection section 23 designed for insertion into a corresponding abutment receptacle of the implant, and an intermediate platform section 27. Furthermore, the implant part 2 has a vertical passage 21 extending from the first head section 22 along the longitudinal axis 26 through the implant part 2 to the implant connection section 23. The passage 21 is open upwards, thus opening towards an occlusal end or prosthesis side 28 of the implant part 2, and downwards, thus opening towards an apical end of the implant part 2 or an implant side 29. Towards its lower end, the passage 21 is provided with an internal thread 214 comprising approximately four turns.

[0062] The implant connection section 23 is provided with a first index area 24. In particular, the outer circumference of the implant connection section 23 in the first index area 24 is designed to be rotationally asymmetric. The implant, for which the abutment 1 is intended, has an abutment receptacle corresponding to the implant connection section 23, so that the implant part 2 can be placed precisely onto the implant in a predefined orientation.

[0063] The first head section 22 has an outer surface that is inclined at approximately 15° to the longitudinal axis 11 of the abutment 1, thus forming a further conical region. In addition, the first head section 22 is provided with a second index region 25, which is formed by three circumferentially distributed, ground flat surfaces. These flat surfaces can be oriented almost parallel to the longitudinal axis 11 of the abutment 1. As a result, the outer circumference of the head section 22 is rotationally asymmetrical at the second index region 25. As shown in Fig. 5. As shown, a crown 8, which is intended for the abutment 1, can be placed on the abutment 1 in a precisely predefined orientation by means of the present indexing.

[0064] Figure 1 shows that the platform section 27 has an upwardly widening gingival form section 272, the outwardly curved outer surface of which forms a gingival contact surface. The gingival contact surface is shaped to rest against and shape the gingiva.

[0065] Furthermore, the platform section 27 has a support surface 271 extending radially outwards with respect to the longitudinal axis 26 of the implant part 2. In particular, the support surface 271 is perpendicular to the longitudinal axis 26 and is directed upwards. As again shown in Fig. 5, the support surface 271 is designed to support the crown 8.

[0066] Fig. 1 further shows that the screw-in part 3 has an upper second head section 31, a lower screw section 32 and an intermediate insertion section 33.

[0067] An outer surface of the second head section 31 defines a conical region 311, the outer surface being inclined at approximately 15° to the longitudinal axis 11 of the abutment 1. The screw section 32 comprises a circular cylindrical post, which is partially equipped with an external thread 321. The external thread 321 is configured to correspond to the internal thread 214 of the passage 21 of the implant part 2.

[0068] An uppermost area of ​​the insertion section 33 comprises a first outer cone area 331 that tapers downwards and adjoins the second head section 31 downwards, as well as a second outer cone area 332 that tapers downwards and adjoins the post upwards. Between the first and the second outer cone areas 331, 332, the insertion section 33 is cylindrical.

[0069] The passage 21 of the implant part 2 is shaped to fit the insertion section 33 and the screw section 32 of the screw-in part 3. In particular, it comprises a cylindrical post section 213 extending upwards to the internal thread 214, and a section extending upwards to the post section 213. second inner cone area 212 and a first inner cone area 211 extending downwards to the upper opening .

[0070] In the state shown in Fig. 1, the abutment 1 is ready to be inserted into the corresponding implant. The screw-in part 3 is screwed into the implant part 2 to such an extent that its lower end is approximately flush with the lower end of the implant part 2. The external thread 321 of the screw section 32 of the screw-in part 3 engages in the internal thread 214 of the passage 21 of the implant part 2, and the screw-in part 3 is thus held in place on the implant part 2.

[0071] Fig. 2 shows the abutment 1 in a state in which the screw-in part 3 is fully screwed into the implant part 2, so that it can be firmly connected to the associated implant. In particular, the screw-in part 3 is screwed relative to the implant part 2 about its longitudinal axis 35 until the first outer cone region 331 of the insertion area 33 and the second outer cone region 332 of the insertion area 33 abut the first inner cone region 211 of the passage 21 and the second inner cone region 212 of the passage 21, respectively. This pressing action allows the abutment 1 to be firmly fixed to the associated implant.

[0072] When fully screwed in, the screw-in part 3 is separated by the implant part. 2 projecting through, so that the screw section 32 of the screw-in part The first head section 21 of the implant part 2 and the second head section 31 of the screw-in part 3 together form a superstructure connection area 4. The first head section 21 of the implant part 2 and the second head section 31 of the screw-in part 3 partially protrude from the implant part 2 on the implant side 29. This allows the second head section 31 to engage in the corresponding internal thread of the abutment receptacle of the associated implant. The entire superstructure connection area 4 has a height of approximately 4 mm.

[0073] Fig. 3 shows an insertion tool 5 for the two-part abutment 1 and an associated fastening screw 6. The insertion tool 5 comprises a downward-facing The insertion tool 5 comprises an open, slip-on receptacle 51, which forms an interior space 54 shaped such that the first head section 22 of the implant part 2 and the second head section 31 of the screw-in part 3 can be inserted; a ratchet gripping section 53 with an outer contour designed for gripping; and a cylindrical neck section 52, which lies between the slip-on receptacle 51 and the ratchet gripping section 53. A vertical bore extends through the insertion tool 5 as an opening, the bore having an internal thread 521. The fastening screw 6 comprises a manually grippable head 61 and a threaded section 62, which is screwed into the thread 521 of the insertion tool 5.

[0074] Figure 4 shows an embodiment of a kit 7 according to the invention in an assembled state. The kit 7 comprises the two-part abutment 1, which may be pre-screwed or supplied as separate parts, the insertion tool 5, and the fastening screw 6. The abutment 1 is shown in Figure 2 in a state where the insertion part 3 is fully screwed in. The insertion tool 5 is shown differently in Figure 4 than in Figure 3. In particular, its structure in Figure 4 is essentially the same as in Figure 3, but its dimensions are different. For example, the neck section 52 of the insertion tool 5 is shown in abbreviated form in Figure 4. The exact dimensions are not important at this point for explaining the function of the kit 7 or its insertion tool 5.

[0075] As can be seen in Fig. 4, the screw-in part 3, starting from the top at the second head section 31, comprises a screw receptacle 34 extending into the interior of the screw-in part 3. In particular, the screw receptacle 34 comprises an internal thread that corresponds to the external thread 321 of the screw section 32 of the screw-in part 3. Thus, the internal thread of the screw receptacle 34 typically corresponds to the internal thread of the abutment socket of the associated implant.

[0076] The slip-on receptacle 51 is slid or placed onto the second head section 31 of the screw-in part 3. The fastening screw 6, projecting through the screw-in tool 4, is manually screwed into the screw socket 34 of the screw-in part 3, and the screw-in tool 5 is thus attached to the screw-in part 3. To mount the abutment 1 onto the corresponding implant, the abutment, in the state shown in Fig. 1 but with the screw-in tool 5 attached, is inserted into the abutment receptacle. The implant is inserted. The implant part 2 is clearly aligned with the implant via the first index area 24 and rotated into the abutment receptacle. A torque ratchet is then mounted on the ratchet gripping section 52, and the screw-in part 3 is screwed into the implant using the torque ratchet until sufficient force is applied. To enable appropriate tightening for an interference fit, the socket 51 of the insertion tool 5 is dimensioned such that there is a gap between the lower end of the socket 51 and the support surface 271 of the platform section 27. The abutment 1 is now firmly connected to the implant. The torque ratchet can then be removed from the insertion tool 5, and the fastening screw 6 can be loosened sufficiently to allow the insertion tool 5 to be removed from the abutment 1.

[0077] As shown in Fig. 5, a crown 8 can then, for example, be mounted as a superstructure on the abutment 1. The crown 8 comprises a vertical screw channel 81, which could alternatively also be angled and which forms a seat for a crown screw 82, and a receptacle accessible from below, which is shaped corresponding to the superstructure connection area 4 of the abutment 1. The crown screw 82 comprises a head 822 and a threaded section 821. The threaded section 821 is designed to fit the screw receptacle 34 of the screw-in part 3 and is screwed into it to such an extent that the crown 8 is pressed firmly against the abutment 1. In this position, the crown 8 rests against the support surface 271 of the platform section 27. The threaded section 821 of the crown screw 82 is again designed analogously to the external thread 321 of the screw section 32 of the screw-in part 3.

[0078] By equipping abutment 1 with platform section 27, it is designed for an implant that ends approximately at bone level, i.e., a so-called bone-level implant. Platform section 27 is shaped so that it projects into the gingiva but does not protrude from it. Together with the area of ​​the crown 8 near the abutment, platform section 27 forms an anatomical gingival canal.

[0079] Fig. 6 shows a second embodiment of a two-part abutment 10 according to the invention as an abutment system intended for an implant 90. The implant 90 projects above the bone and extends into the gingiva; it is therefore a so-called tissue-level implant.

[0080] The abutment 10 consists of an implant part 20 and a screw-in part 30. The structures and features of the abutment 10, which are not described in detail below, are analogous to the same structures and features of the abutment 1 of Figs. 1 to 5.

[0081] In particular, the implant part 20 comprises a first head section 220 with a second index area 250, an implant connection section 230 with a first index area 240, and a vertical passage 210 with a post area 2130, a first internal cone area 2110, and a second internal cone area 2120. The first head section 220 of the implant part 20 and the second head section 310 of the screw-in part 30 together form a superstructure connection area 40.

[0082] The screw-in part 30 comprises a second head section 310 with a conical area 3110, a screw section 320 with a post and external thread 3210, a screw receptacle 340, and an insertion section 330 with a first external conical area 3310 and a second external conical area 3320. Unlike the head section 31 of the abutment 1 from Figs. 1 to 5, the second head section 310 has a transition area 3120, the outer surface of which is inclined at a greater angle of approximately 45° to the longitudinal axis 110 of the abutment 10 than the outer surface of the conical area 3110.

[0083] In contrast to the abutment 1 of Figures 1 to 5, the abutment 10 of Figure 6 does not include a platform section. Such a section is not necessary in the abutment 10 because the implant 90, for which the abutment 10 is intended, extends into the gingiva of the patient when inserted into the patient's jawbone. Accordingly, the implant 90 itself includes a gingival or platform section 920, which has a support surface 9210 on its surface or at its occlusal end. The platform section 920 has an upwardly widening shape, and its upwardly curved outer surface forms a gingival contact surface that is shaped to rest against and shape the gingiva.

[0084] At its apical end, the implant 90 is equipped with a bone screw section 910. The bone screw section 910 has an external thread configured for screwing into the jawbone. Internally, the implant 90 comprises an upwardly open abutment seat 930 and a screw receptacle 920. The abutment seat 930 is shaped to match the implant connection section 230 of the abutment 10, allowing the abutment 10 to be indexed for insertion. The screw receptacle 920 is shaped to correspond with the screw section 320 of the screw-in portion of the abutment 10. Thus, the abutment 10 is firmly fixed to the implant 90 in a predefined orientation.

[0085] As can be seen in Fig. 6, a crown 80, which is provided for the abutment 10, is placed on the abutment 10 in a predefined orientation and fixed by means of a crown screw 820. In particular, the crown screw 820 is inserted into a screw channel 810 of the crown 80. The crown screw 820 comprises a head 8220, which rests against the lower end of the screw channel 810, and a screw thread 8210, which engages in a corresponding thread of the screw socket 340. The tightened crown screw 820 presses the crown 80 against the abutment 10, where it is supported by the bearing surface 9210.

[0086] Figures 7, 8, 9, and 10 show a two-part abutment 19 as a third embodiment of an abutment system or kit 79 according to the invention. The two-part abutment 19 and the kit 79, as well as their components, are identical in design to the first two-part abutment 1 and the first kit 7, or their components, as shown in Figures 1 to 5, except for those aspects that are explicitly described below as differing from it.

[0087] In particular, Kit 79, analogous to the first Kit 7, comprises the two-part abutment 19 and an insertion tool 59. The abutment 19 comprises an implant part 29 and a screw-in part 39. The screw-in part 39 has a vertical longitudinal axis 359, and the implant part 29 has a vertical longitudinal axis 269, the two longitudinal axes 269 and 359 forming a longitudinal axis 119 of the abutment 19. The implant part 29 comprises a first head section 229, an implant connection section 239, a platform section 279, and a vertical passage 219 with an internal thread 2149. The implant connection section 239 is provided with a first index area 249. The first head section 229 is provided with a second index area 259. The platform section 279 has a gingival contour section 2729 and a support surface 2719. The screw-in part 39 comprises a second head section 319, a screw section 329 with a post that is partially threaded externally 321 The insertion section 339 is equipped with a first external cone area 3319 and a second external cone area 3329. The passage 219 of the implant part 29 is open towards a prosthesis side 289 of the implant part 29 and towards an implant side 299. It has a post area 2139, a second internal cone area 2129, and a first internal cone area 2119. The insertion tool 59 comprises a socket 519 with an interior 549, a ratchet gripping section 539, and a neck section 529.

[0088] In contrast to the screw-in part 3 and the insertion tool 5 of Figures 1 to 5, an outer surface of the second head section 319 of the screw-in part 39 of the third abutment 19 comprises a conical region 3119, which is inclined at approximately 15° to the longitudinal axis 119 of the abutment 19 and which has an engagement section 3129 on each of two opposite sides. As can be seen particularly in Figure 8, the two engagement sections 3129 each have an upper retaining region 31219, a lower clamping region 31229, and two opposite lateral side surfaces 31239. As can be seen in all Figures 7, 8, 9, and 10, the retaining region 31219 is cylindrical. An outer surface of the clamping region 31229 flattens downwards, increasingly in the direction of the insertion section 339. The outer surface of the cone area 3119 has an angle of approximately more than 45° to the longitudinal axis 119 of the abutment 19 towards its lower end.The interior 549 of the slip-on receptacle 519 of the screw-in tool 59 is shaped to match the outer surface of the cone area 3119. In particular, it is designed to form a clamping connection with the clamping areas 31229 of the engagement sections 3129, which is sufficiently tight to securely hold the screw-in part 39.

[0089] The insertion tool 59 is not equipped with a vertical bore, so it cannot accommodate a fastening screw. Instead, as described above, it is designed to create a clamping connection with the screw-in part 39. The insertion tool 59 and the head section 319 are coordinated to create a clamping connection sufficient to allow screwing with a suitable torque, such as approximately 35 N-cm. In particular, the clamping connection can be sufficiently stable to hold the screw-in part 39. Sufficient torque can then be transmitted from the insertion tool 59 to the side surfaces 31239 of the engagement sections 3129. The screw-in part 39 is transferred. Above the ratchet gripping section 539, the screw-in tool 59 comprises a closed head section 559.

[0090] When using kit 79, after inserting the implant into the patient's jaw, the two-part abutment 19 and the insertion tool 59 are each removed from their sterile blisters. The screw-in part 39 and the implant part 29 are connected to each other in such a way that they can be inserted into the implant together without obstruction. For this purpose, the screw-in part 39 can be manually screwed into or out of the internal thread 2149 of the passage 219 of the implant part 29, for example, until the post with the external thread 321 of the screw section 329 of the screw-in part 39 does not protrude significantly downwards beyond the implant part 29 or stand out from its implant side 299. The socket 519 of the insertion tool 59 is clamped onto the conical area 3119 of the screw-in part 39. The implant part 29 is correctly aligned with the implant via its indexing.Using the insertion tool 59, the screw-in part 39 is screwed through the implant part 29 into the implant, for example with a torque of approximately 35 N-cm. After removing the insertion tool 59 from the screw-in part 39, the restoration, such as a crown or bridge, is then placed on top and screwed into a screw socket 349 of the screw-in part 39 with a torque of approximately 20 to 30 N-cm. This allows the restoration to be removed from the abutment 19 without also removing the screw-in part 39 from the implant.

[0091] Although the invention is illustrated and described in detail by means of the figures and the accompanying description, this illustration and detailed description are to be understood as illustrative and exemplary and not as limiting the invention. In order not to obscure the invention, well-known structures and techniques may not be shown and described in detail in certain cases. It is understood that those skilled in the art may make modifications and adaptations without departing from the scope of the following claims. In particular, the present invention covers further embodiments with any combinations of features that may differ from the explicitly described combinations of features.

[0092] The present disclosure also includes embodiments with any combination of features described above or below leading to various other embodiments. The disclosure includes embodiments named or shown. It also includes individual features in the figures, even if they are shown there in connection with other features and / or are not mentioned above or below. Furthermore, the alternative embodiments described in the figures and the description, and individual alternatives of their features, may be excluded from the subject matter of the invention or from the disclosed subject matter. The disclosure includes embodiments that comprise exclusively the features described in the claims or in the exemplary embodiments, as well as those that include additional features. The disclosure also includes intermediate generalizations of features or groups of features from exemplary embodiments shown in the figures and the associated sections of the description.This means that specific features or groups of features, as disclosed in the figures and the corresponding sections of the description, can be provided in the more general embodiments of the invention, as disclosed in connection with the description of the invention. In particular, such specific features or groups of features can be provided in the more general embodiments of the invention independently of other specific features shown in the figures. For example, an abutment system according to the invention can have a trapezoidal flat surface, as shown with reference numeral 25 in the figures, on the circumference of the first head section of the implant part of the abutment system according to the invention as a second index area, without the need for any other features of the implant part shown in the figures to also be present.It is understood that experts are able to incorporate specific features from the description of the figures into the embodiments described in the invention.

[0093] Furthermore, the term "comprise" and derivatives thereof do not exclude other elements or steps. Likewise, the indefinite article "a" and its derivatives do not exclude a plurality. The functions of several features listed in the claims can be fulfilled by a single unit or step. The mere fact that certain masses are listed in different dependent claims does not mean that a combination of these masses cannot be used advantageously. The terms "essentially," "about," "approximately," and the like, in conjunction with a property or value, also precisely define the property. or exactly that value. The terms "approximately" and "about" in connection with a given numerical value or range may refer to a value or range that lies within 20%, within 10%, within 5%, or within 2% of the given value or range. All reference numerals in the claims are not to be understood as limiting the scope of the claims.

Claims

THE SPRING Claim 1: An abutment system (1; 10; 19) designed for mounting on a dental implant (90) implanted in a jawbone, comprising: an implant part (2; 20; 29) having a passage (21; 210; 219), a first head section (22; 220; 229) and an implant connection section (23; 230; 239) designed for insertion into a corresponding abutment receptacle (930) of the implant (90), and a screw-in part (3; 30; 39) having a second head section (31; 310; 319) and a screw section (32; 320; 329) with an external thread (321; 3210), wherein the passage (21; 210; 219) of the implant part (2; 20; 29) is shaped to receive the screw-in part (3; 30; 39) projecting through the implant part (2; 20; 29), so that the screw section (32; 320; 329) of the screw-in part (3; 30; 39) protrudes at least partially on one implant side (29; 299) of the implant part (2; 20; 29) from the implant part (2; 20;29) projects outwards, and such that the second head section (31; 310; 319) projects outwards from the implant part (2; 20; 29) on one of the prosthesis sides (28) of the implant part (2; 20; 29) opposite the implant side (29; 299), wherein the implant connection section (23; 230; 239) of the implant part (2; 20; 29) comprises a first index area (24; 240; 249) with a rotationally asymmetric outer circumference, wherein the first head section (22; 220; 229) of the implant part (2; 20; 29) and the second head section (31; 310; 319) of the screw-in part (3; 30; 39) form a superstructure connection area (4; 40; 49) when the screw-in part (3; 30; 39) is received projecting through the implant part (2; 20; 29), wherein the superstructure connection area (4; 40; 49) comprises a second index area (25; 250; 259) with a rotationally asymmetric outer circumference, and; wherein the second head section (31 ; 310; 319) of the screw-in part (3; 30; 39) is equipped with a screw receptacle (34; 340; 349) having an internal thread. Claim 2: The abutment system (1 ; 10; 19) of claim 1, wherein the second index area (25; 250; 259) of the superstructure connection area (4; 40; 49) is formed on the first head section (22; 220; 229) of the implant part (2; 20; 29). Claim s: The abutment system (1 ; 10; 19) of claim 1 or 2, wherein the passage (21 ; 210; 219) of the implant part (2; 20; 29) is equipped with an internal thread (214; 2149). Claim 4: The abutment system (1 ; 10; 19) of claim 3, wherein the internal thread (214; 2149) of the passage (21 ; 210; 219) of the implant part (2; 20; 29) is complementary to the external thread (321 ; 3210) of the screw section (32; 320; 329) of the screw-in part (3; 30; 39). Claim s: The abutment system (1 ; 10; 19) of one of the preceding claims, wherein the internal thread of the screw socket (34; 340; 349) of the screw-in part (3; 30; 39) and the external thread (321 ; 3210) of the screw section (32; 320; 329) of the screw-in part (3; 30; 39) are dimensioned with approximately the same diameter. Claims: The abutment system (1 ; 10; 19) of one of the preceding claims, wherein the internal thread of the screw socket (34; 340; 349) of the screw-in part (3; 30; 39) is designed to be complementary to the external thread (321 ; 3210) of the screw section (32; 320; 329) of the screw-in part (3; 30; 39). Claim 7: The abutment system (1 ; 10; 19) of any of the preceding claims, wherein the superstructure connection area (4; 40; 49) has a conical area (311 ; 3110; 3119). Claim s: The abutment system (1 ; 10; 19) of claim 7, wherein the conical region (311 ; 3110; 3119) of the superstructure connection region (4; 40; 49) has an outer surface inclined at 15° ± 5° to a longitudinal axis of the abutment system. Claim 9: The abutment system (1 ; 10; 19) of claim 7 or 8, wherein the conical region (311 ; 3110; 3119) of the superstructure connection region (4; 40; 49) is formed on the second head section (31 ; 310; 319) of the screw part (3; 30; 39). Claim 10: The abutment system (1 ; 10; 19) of claim 9, wherein the superstructure connection area (4; 40; 49) has a further conical area formed on the first head section (22; 220; 229) of the implant part (2; 20; 29). Claim 11: The abutment system (1 ; 10; 19) of any of the preceding claims, wherein the implant part (2; 20; 29) has a platform section (27; 270; 279) which has a support surface (271 ; 2719) extending outwards with respect to a longitudinal axis (26; 260; 269) of the implant part (2; 20; 29). Claim 12: The abutment system (1 ; 10; 19) of claim 11, wherein the support surface (271 ; 2719) of the platform section (271 ; 2719) of the implant part (2; 20; 29) extends substantially radially outwards with respect to the longitudinal axis (26; 260; 269) of the implant part (2; 20; 29). Claim 13: The abutment system (1 ; 10; 19) of claim 11 or 12, wherein the platform section (27; 270; 279) of the implant part (2; 20; 29) has a gingival contact surface. Claim 14: The abutment system (1; 10; 19) of any of the preceding claims, wherein the passage (21; 210; 219) of the implant part (2; 20; 29) is an inner cone section (211; 212; 2110, 2120; 2119; 2129) and the screw-in part (3; 30; 39) is an outer cone section (331; 332; 3310, 3320; 3319; 3329), wherein the inner cone section (211; 212; 2110, 2120; 2119; 2129) of the passage (21; 210; 219) of the implant part (2; 20; 29) and the outer cone section (331) , 332; 3310, 3320; 3319; 3329) of the screw-in part (3; 30; 39) corresponding to each other are designed so that they lie against each other when the screw-in part (3; 30; 39) is received projecting through the implant part (2; 20; 29). Claim 15: A kit (7; 79) comprising an abutment system (1; 10; 19) according to one of the preceding claims and an insertion tool (5; 59), wherein the insertion tool (5; 59) comprises a slip-on receptacle (51; 519) into which the second head section (31; 310; 319) of the screw-in part (3; 30; 39) can be inserted. Claim 16: The kit (7; 79) of claim 15, wherein the screwing tool (5; 59) is designed with a ratchet gripping section (53; 539). Claim 17: The kit (7; 79) of claim 15 or 16, wherein the abutment system (1; 10; 19) comprises a further implant part (2; 20; 29), wherein the implant part (2; 20; 29) and the further implant part (2; 20; 29) are each configured with a platform section (27; 270; 279) according to any one of claims 12 to 14, and wherein the platform section (27; 270; 279) of the implant part (2; 20; 29) and the platform section (27; 270; 279) of the further implant part (2; 20; 29) are dimensioned differently. Claim 18: The kit (7; 79) of claim 17, wherein a first outer diameter of the support surface (271; 2719) of the platform section (27; 270; 279) of the implant part (2; 20; 29) and a second outer diameter of the support surface (271; 2719) of the platform section (27; 270; 279) of the further implant part (2; 20; 29) are different. Claim 19: The kit (7; 79) of claim 18, wherein the first outer diameter of the support surface (271; 2719) of the platform section (27; 270; 279) of the implant part (2; 20; 29) is in a range of about 3.5 mm to about 4.5 mm and the second outer diameter of the support surface (271; 2719) of the platform section (27; 270; 279) of the further implant part (2; 20; 29) is in a range of about 4.5 mm and 5.5 mm. Claim 20: The kit (7; 79) of any one of claims 17 to 19, wherein a first height of the platform section (27; 270; 279) of the implant part (2; 20; 29) and a second The height of the platform section (27; 270; 279) of the further implant part (2; 20; 29) differs. Claim 21: The kit (7; 79) of claim 20, wherein the first height of the platform section (27; 270; 279) of the implant part (2; 20; 29) is in a range of about 0.8 mm to about 1.6 mm and the second height of the platform section (27; 270; 279) of the further implant part (2; 20; 29) is in a range of about 1.6 mm to about 2.8 mm. Claim 22: The kit (7; 79) of any one of claims 15 to 22, comprising a screw (6) that corresponds to the screw socket (34; 340; 349) of the second head section (31; 310; 319) of the screw-in part (3; 30; 39). Claim 23: The kit (7; 79) of claim 22, wherein the slip-on receptacle (51; 519) of the screw-in tool (5; 59) is provided with an opening through which the screw (6) can be screwed into the internal thread of the screw socket (34; 340; 349) of the second head section (31; 310; 319) of the screw-in part (3; 30; 39) when the second head section (31; 310; 319) of the screw-in part (3; 30; 39) is inserted into the slip-on receptacle (51; 519) of the screw-in tool (5; 59). Claim 24: The kit (7; 79) of any one of claims 15 to 22, wherein the slip-on receptacle (51; 519) of the screw-in tool (5; 59) and the second head section (31; 310; 319) of the screw-in part (3; 30; 39) are shaped to fit together so that they form a clamping connection when the second head section (31; 310; 319) of the screw-in part (3; 30; 39) is inserted into the slip-on receptacle (51; 519) of the screw-in tool (5; 59). Claim 25: The kit (7; 79) of claim 24, wherein the second head section (31; 310; 319) of the screw-in part (3; 30; 39) is formed with an engagement section (3129) and the slip-on receptacle (51; 519) of the screw-in tool (5; 59) is formed with a corresponding shape, such that a clamping connection is created between the screw-in tool (5; 59) and the screw-in part (3; 30; 39) when the second head section (31; 310; 319) of the screw-in part (3; 30; 39) is inserted into the slip-on receptacle (51; 519) of the screw-in tool (5; 59).

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