Gingiva former and arrangement comprising an implant body and a gingiva former

Abstract

A gingiva former (2) for insertion into an implant body (1) that serves as an artificial tooth root, wherein the gingiva former (2) has a main body (14) with a bottom portion (15) and a top portion (16) and wherein the bottom portion (15) has an indexing means with at least one lateral face (17) for inserting the gingiva former (2) into the implant body (1) in a form-fitting and rotationally fixed manner, is characterised, with regard to the problem of designing a gingiva former in such a way that an artificial denture is able to be placed on an implant body as far as possible in a correct position without using a transfer post and without detaching the gingiva former from the implant body, in that the top portion (16) is assigned at least one means for detecting the position and / or orientation of a lateral face (17) to be received in the interior of the implant body (1).

Description

[0001] Patent application

[0002] Applicant: Champions Dental International GmbH

[0003] St. Galier Str. 28 8853 Lachen Switzerland

[0004] Gingiva former and assembly comprising an implant body and a gingiva former

[0005] The invention relates to a gingiva former according to the preamble of patent claim 1.

[0006] It is known from the prior art to screw an implant body into a person's jawbone using a tool to replace missing tooth roots. After the implant body is inserted into the jawbone, it is usually sealed with a cover screw to prevent the penetration of germs.

[0007] The implant body and cover screw assembly often remains in the patient's jaw for a certain period of time without further processing to allow the jawbone to fuse with the implant body. After some time, the cover screw is removed from the implant body, and a gingiva former is screwed into the implant body instead. The gingiva former is designed to shape the gums to accommodate a denture.

[0008] At a subsequent appointment, an impression is taken: The gingiva former is unscrewed, an impression post is screwed in, and an open impression is taken. During the impression, the impression post is unscrewed while the impression material hardens, and then the gingiva former is screwed back in.

[0009] At a subsequent appointment, the gingiva former is unscrewed again, the abutment is screwed in, possibly with the crown sitting on it, or the crown is cemented over the abutment.

[0010] Longer periods of time sometimes pass between the steps described above, and the frequent replacement and placement of parts on the implant body often exposes its interior. This poses the risk of introducing germs that can cause infections. Furthermore, the internal thread of the implant body may be manipulated nine times, resulting in deterioration.

[0011] These problems are addressed by the arrangement of EP 2 494 939 A2, which comprises an implant body and a gingiva former in a so-called shuttle. The gingiva former is screwed to the implant body at the factory and can be gripped by a screwing tool. The unit consisting of gingiva former and implant body can be screwed into the jaw using the screwing tool. The interior of the implant body is sealed against the ingress of germs by the gingiva former and a retaining screw and generally remains sterile until the abutment is inserted. EP 2 494 939 A2 also discloses connecting the gingiva former to an impression post in order to transfer the exact position of the implant body to a model or screen. It is particularly important that the abutment is connected to the artificial denture in such a way that it fits as optimally as possible into the occlusion.

[0012] The invention is therefore based on the object of designing a gingiva former in such a way that an artificial tooth replacement can be placed on an implant body in the most correct position possible without using a transfer post and without detaching the gingiva former from the implant body.

[0013] The present invention solves the above-mentioned problem by the features of patent claim 1.

[0014] According to the invention, it was initially recognized that a gingiva former or shuttle is inserted into an implant body serving as an artificial tooth root in a specific rotational position relative to the implant body in order to pre-shape the gums before further treatment. For this purpose, the gingiva former has a base body with a lower section and an upper section, wherein the lower section has an indexing means with at least one side surface, preferably but not necessarily a polygon with multiple side surfaces, for the positive and rotationally fixed insertion of the gingiva former into the implant body.

[0015] The implant body has an indexing means receiving section that interacts with the indexing means to ensure that the gingiva former is held in the implant body in a rotationally fixed and form-fitting manner. The indexing means can have side surfaces with edges, curvatures, rounded surfaces, flat surfaces, or side surfaces of a different design.

[0016] The indexing means receiving section in the implant body acts as a connecting section and is preferably designed to complement the indexing means. However, if a side surface of an indexing means, preferably the side surfaces of a polygon, is / are accommodated inside the implant body, this / these are / are no longer visible.

[0017] It has also been recognized that the gingiva former not only functions as a seal for the implant body against germs, as a screwing aid for the implant body, as a gum former and as a carrier of an impression post for an impression material, but also as a creation aid when creating a three-dimensional model of a dentition situation, namely as a so-called scan body during an intraoral scan.

[0018] Before and / or during the molding of an impression material, such as a silicone material, through the dentition in the oral cavity, an intraoral scanner is used to optically scan the dentition or a region of the dentition around the gingiva former and the implant body. This creates a three-dimensional model of the dentition or the area of ​​interest on a screen. Later, an artificial denture created based on this impression or the acquired optical data is supported by an abutment that is inserted into the implant body.

[0019] According to the invention, it has been specifically recognized that the abutment must be inserted into the implant body just as precisely as the gingiva former was previously inserted as an interchangeable part, particularly with regard to its rotational position relative to the implant body. According to the invention, this exact positioning of the abutment is made possible by assigning to the upper, namely visible section at least one means for detecting the position and / or orientation of a side surface to be accommodated inside the implant body and thus no longer visible. The means corresponds to the side surface assigned to it in such a way that the rotational position of the side surface relative to the implant body and / or the dentition area can be clearly detected and later transferred to the rotational position of the abutment. In this way, an artificial denture can be placed as accurately as possible on an implant body already accommodated in the jaw.

[0020] The indexing element could comprise a polygon with multiple side surfaces or be designed as such. A polygon can provide a good and reliable form fit with the implant body.

[0021] The agent could be formed as a depression in the upper coronal margin of the gingiva former, which is offset from a surface of the coronal margin. This allows the agent to be detected not only visually but also haptically. A depression exhibits a different reflection behavior than the surrounding area; therefore, incident light from an intraoral scanner illuminating the oral cavity can be reflected back from a depression in a particularly characteristic way, allowing its position to be optically detected very precisely and displayed in a three-dimensional image.

[0022] Several means could be formed as depressions in the upper, coronal margin of the gingiva former, with the depressions offset from a surface of the margin and the depressions, together with the flanks extending beyond the depressions, forming a palisade structure. Using several means, the rotational position of a gingiva former relative to an implant body and / or a dentition environment can be recorded particularly accurately. A three-dimensional image can be created based on several recorded means. The palisade structure can be captured particularly well with an intraoral scanner.

[0023] At least the upper coronal edge and / or the means could be provided with a coating that suppresses the reflection of light incident on the healing abutment or refracts the light. The coating could be between 1 and 10 μm thick. The coating is preferably an oxide layer, in particular a titanium oxide layer. A titanium oxide layer is essentially white to gray and has a light-refracting effect.

[0024] This helps prevent artifacts caused by unwanted light reflections during image creation. The agent(s) can be captured with sufficient contrast to its background or surroundings, especially the dentition.

[0025] Several guides could be incorporated into the gingiva former, with each guide uniquely assigned to a lateral surface. Advantageously, a line parallel to an orthogonal to the midpoint of a lateral surface can pass through the center of the guide. Thus, by detecting the guide, it is possible to precisely determine the inclination of the lateral surface relative to an imaginary plane or one created in a three-dimensional model.

[0026] The polygon could be designed as a hexagon, with three hexagonal side surfaces offset by 120° from each other clearly assigned to three means offset by 120°. A hexagon is a sufficiently stable shaped body to adequately and reliably transmit rotational forces to the implant body when it is screwed into the jawbone via the gingiva former. Choosing a rotational spacing of 120° is particularly advantageous because all means can be captured at least partially during scanning with the intraoral scanner, and not all means are unfavorably obscured by the dentition.

[0027] The healing abutment could have a cone between the upper section and the indexing element, preferably the polygon. The cone can correspond to an inner cone in the implant body, creating a self-locking effect between the two cones, which, in addition to the indexing element or polygon, can transmit torque. Furthermore, the cone and the inner cone act together as a sealant, particularly effectively preventing bacterial penetration into the interior of the implant body.

[0028] Alternatively or additionally, the gingiva former could have a longer cone above the indexing element, preferably the polygon, and a shorter cone below the indexing element, preferably the polygon. This creates double bacterial impermeability, because not only does the upper, longer cone correspond to a longer inner cone, but the lower, shorter cone also corresponds to a shorter inner cone. This creates two barriers for germs and bacteria.

[0029] The gingiva former could have locking means in the upper section for accommodating an impression post or impression cap. The impression post, preferably made of titanium, can stabilize the impression material laterally against tipping during the impression process and remains in the gingiva former when the molded impression material is removed. An impression cap could also be inserted into the gingiva former, which stabilizes the impression material during the impression process but, unlike the impression post, can be removed from the gingiva former together with the molded impression material.

[0030] The healing abutment could have an internal polygon for accommodating a driver or impression post. The internal polygon is preferably designed as a hexagon socket. The driver can engage with the hexagon socket and thereby rotate the healing abutment together with the implant body. The impression post can also engage with the hexagon socket and is thus very securely held in the healing abutment. Preferably, the hexagons of the impression post and the driver are of the same size in sections to enable them to engage with the healing abutment.

[0031] An exchange set could comprise a gingiva former of the type described here and an abutment for supporting artificial dentures, wherein both the abutment and the gingiva former each have a lower section with a cone, wherein an indexing means, preferably a polygon, is connected to the respective cone and wherein the number of side surfaces of the indexing means, preferably the polygon, and the angles enclosed by the adjacent side surfaces inclined towards one another are identical. Such an exchange set creates an exchange system that can be used together with a single implant body. A passage is formed in both the gingiva former and the abutment so that a screw can penetrate the gingiva former and the abutment.An arrangement could therefore comprise an implant body and a gingiva former of the type described here, wherein the implant body is designed to be complementary to the gingiva former such that the gingiva former can be at least partially inserted into the implant body with the lower section and protrudes at least partially from it with the upper section, wherein the implant body and the gingiva former can be positively connected to one another such that rotation of the gingiva former results in rotation of the implant body. This arrangement enables the realization of a prefabricated, bacteria-tight unit comprising the implant body and the gingiva former inserted into it, which can be gripped by a screwing-in tool. The implant body is screwed into a prepared jawbone using the screwing-in tool. The gingiva former acts as a so-called shuttle and seals the interior of the implant body to prevent bacteria from entering.The gingiva former has an internal polygon that can be positively and non-rotatably gripped by a polygon, preferably a hexagon, of the insertion tool. When the gingiva former is rotated, the implant body rotates with it and is screwed into the jawbone.

[0032] The arrangement could include an abutment for supporting artificial dentures, which can be inserted into the implant body as a replacement or interchangeable part instead of the gingiva former. This allows for an arrangement in which a gingiva former can be easily replaced with an abutment that can support the denture in the correct position and is designed to function in the same way as the gingiva former in the lower section.

[0033] The abutment could have a cone between an upper section and an indexing means, preferably a polygon, and / or the abutment could have a longer cone above the indexing means, preferably a polygon, and a shorter cone below the indexing means, preferably a polygon, on the lower section. Due to the aforementioned configurations, the abutment has the same advantages in terms of bacterial impermeability as the gingiva former. The indexing means or polygon of the abutment is identical to, or has the same effect as, that of the gingiva former. In particular, the dimensions and orientations of the side surfaces of a polygon of the abutment are identical to those of the gingiva former. Instead of a polygon, a different indexing means could also be used.

[0034] The arrangement could comprise an impression post, the lower end of which can be reversibly inserted into the gingiva former, and the upper end of which can be reversibly connected to a cap. Such an impression post can stabilize an impression material during the impression process, and after the impression process, the molded material can be removed from the impression post together with the cap.

[0035] The impression post could be connected to the implant body by means of a connecting screw, with the connecting screw also connecting the healing abutment to the implant body. This firmly connects the impression post, which is typically made of titanium, to the healing abutment.

[0036] The assembly could include an impression cap, preferably made of polyetheretherketone (PEEK), which can be reversibly connected to the gingiva former in a force-fitting and / or form-fitting manner. The impression cap can be removed from the gingiva former together with the molded impression material.

[0037] The implant body could have a conical receiving section with an internal cone at its coronal end, which transitions into an indexing agent receiving section, preferably a polygonal receiving section with an internal polygon, for receiving the healing abutment and / or the abutment. This allows the implant body to form a bacteria-tight and simultaneously rotationally rigid connection with the healing abutment, but also with the abutment.

[0038] The implant body could have a coarse thread at its apical end, followed by a fine thread with a shallower thread depth than the coarse thread at the coronal end. The apical coarse thread can easily cut into the jawbone and fuse with it. Due to its fineness, the fine thread has a very large surface area and forms microstructures, allowing the jawbone to bond particularly well with the fine thread by fusing with it.

[0039] The arrangement described above allows a dentist to be provided with a set comprising an implant body, a healing abutment, an abutment, an impression post, an impression cap, a cap, screws, connecting screws, and / or a driver. The dentist can then, as desired, either firmly connect the implant body and the healing abutment to each other, for example, by screwing, or firmly connect the implant body to an abutment, specifically by screwing.

[0040] The arrangement could therefore comprise a screwing tool for screwing the implant body into a jaw, which is designed to complement the gingiva former and can be connected to it in a form-fitting manner. This allows a dentist to rotate the implant body by engaging a gingiva former without engaging the gingiva former itself. A screwing tool for screwing the implant body into a jaw could be provided, which is designed to complement the gingiva former and can be connected to it in a form-fitting manner. The screwing tool forms a lid of a receptacle in which the implant body and the gingiva former are accommodated, preferably in an airtight manner.

[0041] This allows the implant body and the gingiva former connected to it to be delivered sterile and do not need to be touched by the dentist when they are removed from the receiving vessel.

[0042] Simply by grasping the lid, the composite of implant body and gingiva former can be removed from the receptacle and screwed into a jaw.

[0043] In the drawing show

[0044] Fig. 1 shows a prior art arrangement comprising an implant body with a fixed gingiva former, the arrangement being able to be screwed into the jaw of a patient as a unit by means of a screwing tool which engages the gingiva former,

[0045] Fig. 2 shows another arrangement of the prior art in an exploded view, comprising an implant body, a gingiva former, a screw for connecting the gingiva former to the implant body, an impression post for insertion into the gingiva former, and an abutment, wherein the abutment is designed in its apical section in the same way as the gingiva former in order to be inserted sealingly into the implant body instead. Fig. 3 shows a perspective view of an arrangement comprising a threaded implant body which is firmly connected to a gingiva former, wherein the gingiva former has a palisade-like structure on its upper, coronal edge.

[0046] Fig. 4 in the upper view a plan view of the upper, coronal edge of the gingiva former according to Fig. 3, in the middle view a partially sectioned view of the gingiva former according to Fig. 3 and in the lower view a perspective view of the gingiva former according to Fig. 3,

[0047] Fig. 5 on the left shows an assembled assembly and on the right an exploded view of the assembly shown on the left, which comprises an implant body, a gingiva former according to Fig. 4, a titanium impression post, a connecting screw for the impression post and the gingiva former and a cap which can be attached to the impression post,

[0048] Fig. 6 an exploded view of the impression post, the connecting screw and the cap.

[0049] Fig. 7 on the left shows an assembled arrangement and on the right an exploded view of the arrangement shown on the left, which comprises an implant body, a gingiva former according to Fig. 4 and an impression cap made of polyetheretherketone (PEEK), which can be reversibly inserted into the gingiva former, Fig. 8 is a partial section through its central axis of the implant body in the area of ​​the receptacle for the gingiva former and an abutment,

[0050] Fig. 9 a perspective view of the abutment which can be inserted into the implant body instead of the gingiva former and

[0051] Fig. 10 is a cross-sectional view of the abutment shown in Fig. 9 through its central axis.

[0052] Fig. 1 and 2 each show an arrangement of the prior art, namely EP 2 494 939 A2.

[0053] Fig. 1 shows that an implant body 1 can be screwed into a jawbone using a gingiva former or shuttle 2', by engaging a screwing tool 3 into the gingiva former 2'. The screwing tool 3 forms a lid 4 of a receptacle 5. The implant body 1 has two threaded sections 6, 7.

[0054] Fig. 2 shows an arrangement of the prior art in an exploded view, which has the implant body 1, the gingiva former 2', a screw 8 for connecting the gingiva former 2' to the implant body 1, an impression post 9 for insertion into the gingiva former 2' and an abutment 10, wherein the abutment 10 is designed in its apical section in the same way as the gingiva former 2' in order to be inserted into the implant body 1 in a sealing manner instead.

[0055] The gingiva former 2' for insertion into the implant body 1 serving as an artificial tooth root has an apical section 11 with a polygon 12. The abutment 10 is designed in its lower section in the same way as the gingiva former 2'. The impression post 9 also has a polygon 12a and a locking means 13 for locking with the gingiva former 2'.

[0056] Fig. 3 shows an arrangement with an implant body 1, which serves as an artificial tooth root, and a gingiva former 2, which is firmly and bacteria-tightly inserted into the implant body 1.

[0057] Fig. 4 shows three views of the gingiva former 2 according to Fig. 3, which is designed for insertion into the implant body 1 serving as an artificial tooth root, wherein the gingiva former 2 has a base body 14 with a lower section 15 and an upper section 16. The lower section 15 has a polygon 12 with a plurality of side surfaces 17 as an indexing means for the positive and rotationally fixed insertion of the gingiva former 2 into the implant body 1. The upper section 16 is assigned at least one means for detecting the position and / or orientation of a side surface 17 to be received inside the implant body 1.

[0058] The means is formed as a depression 18 in the upper, coronal edge 19 of the gingiva former 2, which is offset from a surface of the coronal edge 19.

[0059] A plurality of means are formed as depressions 18 in the upper, coronal edge 19 of the gingiva former 2, wherein the depressions 18 are offset from a surface of the edge 19 and wherein the depressions 18, together with the non-offset flanks 20 of the edge 19 projecting beyond the depressions, form a palisade structure. At least the upper, coronal edge 19 and the means are provided with a coating, namely a titanium oxide layer, which suppresses the reflection of light incident on the gingiva former.

[0060] Using an intraoral scanner (not shown), such as the AS 100 from Allied Star (brand name), the oral cavity can be illuminated with light to obtain a three-dimensional image of the dentition or a section of the dentition. This image can be stored in a database and retrieved as needed to produce artificial dentures to be supported by an abutment 10.

[0061] Several elements are formed in the gingiva former 2, each element being uniquely assigned to a side surface 17. Specifically, the polygon 12 is designed as a hexagon with six side surfaces 17, with three side surfaces 17 of the hexagon, offset by 120° from each other, being uniquely assigned to three elements, namely recesses 18, offset by 120° from each other. The longitudinal extent of a recess 18 between two flanks 20 is oriented parallel to a side surface 17.

[0062] The middle illustration of Fig. 4 shows particularly clearly that the gingiva former 2 has a cone 21 between the upper section 16 and the polygon 12. Specifically, the gingiva former 2 has a longer cone 21 above the polygon 12 and a shorter cone 22 below the polygon 12 on the lower section 15. The gingiva former 2 has a circumferential groove 35 in the upper section 16. The groove 35 is concave.

[0063] The gingiva former 2 has, in the interior of the upper section 16, locking means 23 for receiving an impression post 9 according to Fig. 2 or an impression cap 29 according to Fig. 7. The locking means 23 are designed as spaced-apart internal grooves.

[0064] The gingiva former 2 also has an internal polygon 25, namely an internal hexagon, for receiving the screwing tool 3 according to Fig. 1 or an impression post 9 according to Fig. 2 or an impression post 26 made of titanium according to Fig. 5 or 6. The impression post 26 made of titanium has a polygon at its lower end, namely an external hexagon 26a, which can be inserted into the internal polygon 25 of the gingiva former 2.

[0065] Fig. 3, 5 and 7 each show an arrangement comprising an implant body 1 and a gingiva former 2 of the type described here, wherein the implant body 1 is designed to be complementary to the gingiva former 2 in such a way that the gingiva former 2 is at least partially inserted into the implant body 1 with the lower section 15 and protrudes at least partially from the latter with the upper section 16, wherein the implant body 1 and the gingiva former 2 are positively connected to one another such that rotation of the gingiva former 2 results in rotation of the implant body 1. Furthermore, the gingiva former 2 and the implant body 1 are connected to one another in a bacteria-tight manner.

[0066] The implant body 1 has a coarse thread 6 at its apical end, which is followed by a fine thread 7 with a smaller thread depth than the coarse thread 6 towards the coronal end. The fine thread 7 has a cylindrical thread core.

[0067] Fig. 5 shows an arrangement in which a titanium impression post 26 is provided, which, with a lower end having an external hexagon 26a, can be reversibly inserted into the gingiva former 2. The impression post 26 can be reversibly connected to a cap 27 at the upper end. The cap 27 is placed on the upper end of the impression post 26 and can be removed from the impression post 26 together with the impression material.

[0068] The cap 27 can grip the upper end of the impression post with two spring legs 27a in a force-fitting and / or form-fitting manner and can be pulled off the impression post 26 together with the impression material.

[0069] The impression post 26 is connected to the implant body 1 by means of a connecting screw 28, wherein the gingiva former 2 is simultaneously connected to the implant body 1 by means of the connecting screw 28.

[0070] Fig. 6 shows the titanium impression post 26, the connecting screw 28 and the cap 27. The upper end of the impression post 26 tapers towards the cap 27 and is shaped like a truncated cone, with parallel side surfaces which interrupt the outer surface of the truncated cone.

[0071] Fig. 7 shows an arrangement in which an impression cap 29 made of polyetheretherketone (PEEK) is provided. The impression cap 29 can be reversibly inserted into the gingiva former 2 by locking it. The locking means 23 in the gingiva former 2 interact with complementary locking means 30 in the impression cap 29. Specifically, the locking means 23 in the gingiva former 2 are designed as internal grooves, and the complementary locking means 30 are designed as springs that can engage in the internal grooves.

[0072] Fig. 8 shows a partial cross-sectional view of the upper coronal part of the implant body 1 in the region of the receptacle for the gingiva former 2 or the abutment 10. At its coronal end, the implant body 1 has a conical receiving section 31 with an inner cone, which seamlessly transitions into a polygonal receiving section 32 for receiving the gingiva former 2 and / or an abutment 10. The conical receiving section 31 has an opening angle 31a of 19°, into which the longer cone 21 can be inserted in a self-locking manner. Below the polygonal receiving section 32, a further conical receiving section 33 is formed for receiving the shorter cone 22.

[0073] Below the further conical receiving section 33, an internal thread 34 is formed for receiving a screw 8 for holding the gingiva former 2 according to Fig. 2 or a connecting screw 28 for holding an impression post 26 according to Fig. 5 or 6. The connecting screw 28 penetrates the impression post 26 because it has a central passage.

[0074] Figs. 9 and 10 show an abutment 10 for supporting artificial dentures, which can be inserted into the implant body 1 instead of the gingiva former 2, wherein the abutment 10 has a cone 21 between an upper section and a polygon 12. Specifically, the abutment 10 has a longer cone 21 above the polygon 12 and a shorter cone 22 below the polygon 12 at the lower section.

[0075] The gingiva former 2 according to Fig. 4 and the abutment 10 according to Figs. 9 and 10 constitute an exchange set. The exchange set comprises the gingiva former 2 of the type described here and the abutment 10 for supporting artificial dentures. Both the abutment 10 and the gingiva former 2 each have a lower section with a cone 21, with a polygon 12 adjoining each cone 21, and the number of side surfaces 17 of the polygon 12 and the angles enclosed by the adjacent, mutually inclined side surfaces 17 are identical. The polygons 12 are hexagons, and the angles of the adjacent side surfaces 17 of a polygon 12 are all the same. List of reference symbols:

[0076] 1 implant body

[0077] 2' State-of-the-art gingiva former

[0078] 2 gingiva formers

[0079] 3 screwing tool

[0080] 4 lids

[0081] 5 Receptacle

[0082] 6 coarse threads of 1

[0083] 7 fine threads of 1

[0084] 8 State-of-the-art screw

[0085] 9 State-of-the-art impression posts

[0086] 10 Abutments

[0087] 11 apical section

[0088] 12 polygon

[0089] 12a polygon of 9

[0090] 13 rest stops of 9

[0091] 14 basic bodies of 2

[0092] 15 lower section of 2

[0093] 16 upper section of 2

[0094] 17 side area of ​​12

[0095] 18 Deepening in 19

[0096] 19 upper edge of 2

[0097] 20 cross from 19

[0098] 21 long cone

[0099] 22 short cone

[0100] 23 rest stops in 2

[0101] 25 internal polygon of 2

[0102] 26 impression posts, preferably made of titanium

[0103] 26a External hexagon of 26 27 Cap for 26

[0104] 27a Spring leg of 27

[0105] 28 Connecting screw

[0106] 29 Impression cap, preferably made of PEEK

[0107] 29a External hexagon of 29

[0108] 30 complementary locking devices to 23

[0109] 31 conical receiving section of 1

[0110] 32 polygonal receiving section of 1

[0111] 33 further, deep conical receiving section of 1

[0112] 34 internal threads of 1

[0113] 35 um running groove of 2

Claims

Patent claims 1. Gingiva former (2) for insertion into an implant body (1) serving as an artificial tooth root, wherein the gingiva former (2) has a base body (14) with a lower section (15) and an upper section (16), and wherein the lower section (15) has an indexing means with at least one side surface (17) for the positive and rotationally fixed insertion of the gingiva former (2) into the implant body (1), characterized in that the upper section (16) is assigned at least one means for detecting the position and / or orientation of a side surface (17) to be received in the interior of the implant body (1).

2. Gingiva former according to claim 1, characterized in that the indexing means preferably comprises a polygon (12) with several side surfaces (17) or is designed as such.

3. Gingiva former according to claim 1 or 2, characterized in that the means is designed as a depression (18) in the upper, coronal edge (19) of the gingiva former (2), which is offset from a surface of the coronal edge (19).

4. Gingiva former according to one of the preceding claims, characterized in that a plurality of means are formed as depressions (18) in the upper, coronal edge (19) of the gingiva former (2), wherein the depressions (18) are offset from a surface of the edge (19) and wherein the depressions (18) together with the non-offset flanks (20) projecting beyond the depressions (18) form a palisade structure.

5. Gingiva former according to one of the preceding claims, characterized in that at least the upper coronal edge (19) and / or the means is / are provided with a coating which suppresses the reflection of light incident on the gingiva former (2) or refracts the light.

6. Gingiva former according to one of the preceding claims, characterized in that several means are formed in the gingiva former (2), each means being uniquely assigned to a side surface (17).

7. Gingiva former according to one of claims 2 to 6, characterized in that the polygon (12) is designed as a hexagon, wherein three side surfaces (17) of the hexagon offset by 120° to one another are clearly assigned three means offset by 120° to one another.

8. Gingiva former according to one of the preceding claims, characterized in that the gingiva former (2) has a cone (21) between the upper section (16) and the indexing means, preferably a polygon (12), and / or that the gingiva former (2) has a longer cone (21) above the indexing means, preferably a polygon (12), and a shorter cone (22) below the indexing means, preferably a polygon (12), on the lower section (15).

9. Gingiva former according to one of the preceding claims, characterized in that the gingiva former (2) in the upper section (16) has locking means (23) for receiving an impression post (9) or an impression cap (29) and / or an internal polygon (25) for receiving a screwing tool (3), an impression post (26) or an impression cap (29).

10. Exchange set, comprising a gingiva former (2) according to one of the preceding claims and an abutment (10) for supporting artificial dentures, characterized in that both the abutment (10) and the gingiva former (2) each have a lower section with a cone (21), wherein an indexing means, preferably a polygon (12), is connected to the respective cone (21), and wherein the number of side surfaces (17) of the indexing means, preferably the polygon (12), and the angles which the adjacent side surfaces (17) inclined towards one another enclose with one another are identical.

11. Arrangement comprising an implant body (1) and a gingiva former (2) according to one of claims 1 to 9, wherein the implant body (1) is designed to be complementary to the gingiva former (2) in such a way that the gingiva former (2) can be at least partially inserted into the implant body (1) with the lower section (15) and protrudes at least partially from the latter with the upper section (16), wherein the implant body (1) and the gingiva former (2) can be connected to one another in a form-fitting manner, so that when the gingiva former (2) is rotated, the implant body (1) rotates.

12. Arrangement according to claim 11, characterized in that an abutment (10) is provided for supporting artificial dentures, which abutment can be inserted into the implant body (1) instead of the gingiva former (2).

13. Arrangement according to claim 12, characterized in that the abutment (10) is arranged between an upper section and a Indexing means, preferably a polygon (12), has a cone (21) and / or that the abutment (10) has a longer cone (21) above the indexing means, preferably a polygon (12), and a shorter cone (22) below the indexing means, preferably a polygon (12) at the lower section.

14. Arrangement according to one of claims 11 to 13, characterized in that an impression post (26) is provided which can be reversibly inserted into the gingiva former (2) with a lower end, wherein the impression post (26) can be reversibly connected to a cap (27) at the upper end.

15. Arrangement according to claim 14, characterized in that the impression post (26) can be connected to the implant body (1) by means of a connecting screw (28), wherein the gingiva former (2) can be connected to the implant body (1) at the same time by means of the connecting screw (28).

16. Arrangement according to one of claims 11 to 15, characterized in that an impression cap (29), preferably made of polyetheretherketone (PEEK), is provided, which can be reversibly connected to the gingiva former (1) in a force-fitting and / or form-fitting manner.

17. Arrangement according to one of claims 11 to 16, characterized in that the implant body (1) has a conical receiving section (31) at its coronal end, which merges into an indexing means receiving section, preferably a polygonal receiving section (32), for receiving the gingiva former (1) and / or the abutment (10), and / or that the implant body (1) has a coarse thread (6) at its apical end which is followed towards the coronal end by a fine thread (7) with a smaller thread depth than the coarse thread (6).

Images