WO2012120010A1

WO2012120010A1 - Abutment with clamp fastening in the implant body

Info

Publication number: WO2012120010A1
Application number: PCT/EP2012/053815
Authority: WO
Inventors: Thomas Müller
Original assignee: Mueller Thomas
Priority date: 2011-03-08
Filing date: 2012-03-06
Publication date: 2012-09-13
Also published as: DE102011013280A1

Abstract

An abutment (20) is described for mounting on an implant body (10) that has a receiving recess for the abutment. The abutment comprises a connector part (22) for introduction into the receiving recess of the implant body (10), and an abutment part (24) that adjoins the connector part (22) and receives a superstructure (40). The connector part (22) and the abutment part (24) are formed in one piece. In the abutment part (24) and in the connector part (22), there is a through-channel (28) into which a clamping pin (30) can be inserted to form an outer circumferential enlargement in the area of the lower end of the connector part (22), for the formation of a clamping connection with the inner wall of the receiving recess of the implant body (10).

Description

Building device with clamp attachment in the implant body

The present invention relates to a construction device for mounting on a dental implant, which is anchored to the implant body. Furthermore, the invention relates to an implant body for receiving such

Building apparatus. Moreover, the invention relates to a kit consisting of an implant body and a building device.

A dental implant is generally inserted into the jawbone of a patient. There are both one-piece, as well as two-piece

Implant systems are used. In contrast to one-piece implant systems, two-part implant systems consist of a abutment post and an implant or implant body. The advantage of two-parted

Implant systems are recognized worldwide, so over 95% of dental implant systems are split in two.

A variety of prosthetic abutment posts are known on implants. These abutment posts are in most cases screwed to the implant body, a few are glued. There are external connections in the market, which are more likely to be older ones

Systems are used. In the external connection, the abutment post with a strong retaining screw from the outside with the implant body connected. When this retaining screw loosens, the mounting post immediately becomes loose.

For about 20 years, mainly internal connections are used. In these internal connections, the force is transmitted over the surfaces of the abutment post, which is arranged in the implant. The screw takes over no power connection, but only serves to secure.

A disadvantage of the bolted abutment posts is the size of the screw. For straight construction posts with very large diameters, the static is not affected and therefore there are no problems. However, at small

Diameters of the implants, which are currently at 3.0 mm outside diameter of the implant as the smallest diameter of all major manufacturers, the problem of small dimensions clearly. Because the screw

To absorb torsional forces, a diameter of 1 mm for the seems

Need to be screw core, which also results from measurements of large manufacturers. This results in a screw shaft of 1, 5 - 1, 7 mm

Diameter, as the screw must pass through with thread. In addition, for the screw head, which usually consists of a hexagon,

Octagonal, star or rarely from a slot recess for the

Screwdriver is needed, slightly more space needed. For the screw head you should count on diameters of 1, 8 - 2 mm. In order to keep the diameter of the structure as low as possible, therefore, the screw head is usually placed over the implant.

With optimal material thickness utilization remains, if two times

Implant walls, double abutment posts (wall thicknesses approx. 0.3 - 0.4 mm) and a screw channel in the middle subtracts, purely mathematically a

Wall thickness on average for each wall of less than 0.4 mm.

Such a small wall thickness is borderline. As has been proven by relevant studies, the walls of these very thin implants deform during chewing, which leads to tensions on the bone.

In dentistry, a connecting part between the implant and the superstructure, such as a crown, bridge or prosthesis, is called an abutment. This abutment can not begin on the implant in angled abutments, i. E. H. the pedestal is bad with a crown

coverable. This would sometimes be useful if the mucous membrane is very thin and the implant just below this begins. In addition, in angled implants must be a straighter

Screw shaft (extension to the implant) are released, which also has a negative impact on the statics, or leads to a stronger characterization of the base with sufficient static. In addition, bends are often only up to 15 degrees, 20 degrees or very rarely offered by individual manufacturers up to 30 degrees. larger

Bends are not possible for static reasons. However, the reason is not the implant alignment in the bone, there would be 45 degrees of the structure to the implant no problem, but in the statics of

Construction self.

There are different approaches to solve the problem. One possibility is in adhesive abutments. The disadvantage of this method is that the Connection can not be solved anymore. Another possibility is a three-part construction post with an angled intermediate part. However, this brings more static problems with it. In addition, implants with a bend in the head area are known. This means the actual implant is already bevelled so that the

Construction post is already sitting diagonally. However, this can only be used with a fixed angle and in one position. In addition, this mounting post also has a strong base, this time directly on the implant on.

Another approach uses a wedge resting on a hexagon. In the powerful beating on the body post, the wedge presses from below between the two abutment ends, pushes them apart and wedged them indissolubly. One problem with this anchoring is that it can only be used once and can not be released again. This makes it difficult to try out the work. Another disadvantage of this type of abutment post is that it can only be used for this particular implant system.

EP 0 651 976 A1 describes a device for fixing a dental prosthesis in the human body. It is a jaw inserted

Implant provided with a blind hole, in which a cylindrical sleeve is inserted and fixed therein. In the sleeve, a secondary part can be used with an upper conical portion and a lower portion, the lower slotted end portion has a thickening, which pops up after insertion of the secondary part in the blind hole of the implant and engages behind an undercut on the lower end side of the sleeve. The secondary part has a threaded hole in the upper conical section, which merges into a through hole. Into the threaded hole intervenes Thread portion of a dome, whose lower cylindrical portion spreads the slotted end portion of the secondary part. Occurring during spreading of the slotted end portion of the secondary part outwardly acting radial compressive forces are at the undercut in a

Normal force and converted into a downwardly acting axial tensile force, which ensures the secure positive fit of the abutment in the implant.

DE 10 2006 007 233 A1 describes a positive fixing of a

Pen-butt construction in a human tooth by means of spreader and pin. In a further embodiment, a screw implant is provided, in which a structural device is used, which has an undercut

is positively fixed.

FR 2 690 069 A1 describes a construction device in which a

Clamping connection of a connecting part with the inner wall of the

Receiving recess of an implant body is produced. To form a clamping connection by radial pressure forces a clamping screw is provided.

The present invention is therefore based on the object, a

To provide a construction device for construction on at least one implant, which overcomes the above-mentioned disadvantages, inexpensive to manufacture and is universally applicable.

This object is achieved by a construction device according to claim 1. It is a building device for building on and / or in one Implant body, which has a receiving recess for the building device, proposed, wherein the building device comprises:

a connecting part for insertion into the receiving recess of

Implant body and a subsequent to the connecting part mounting member for receiving a superstructure, wherein the connecting part and the

Body are integrally connected, it being provided that the upper end portion of the connecting part is complementary to the

Receiving recess of the implant body, which has a tapered inner wall,

in that a through-channel is formed in the mounting part and in the connecting part or at least in the connecting part, in which a clamping pin is insertable to form a clamping connection of the connecting part with the inner wall of the receiving recess of the implant body, and that the clamping connection is formed by that with the insertion the clamping pin is formed in the through passage an outer peripheral enlargement of the connecting part and / or acting against deformation stiffening of the connecting part.

It is essential that in the body part and in the connecting part or at least in the connecting part, a passageway is formed, in which a clamping pin is inserted for the formation of a clamping connection of the connecting part with the inner wall of the receiving recess of the implant body. The clamping connection can be adjusted by a frictional connection of the outside of the connecting part with the

Inner wall of the receiving recess of the implant body. This can be done in that the clamping connection is formed by the fact that with the insertion of the clamping pin in the passage a

Outside perimeter enlargement of the connecting part and / or one against a Deformation acting stiffening of the connecting part is formed. The outer circumference enlargement of the connecting part preferably takes place in that the connecting part spreads in the region of its lower end by the insertion of the clamping pin or engages the end of the clamping pin itself in the manner of a wedge in the receiving recess. The stiffening of the connecting part can take place in that with the insertion of the

Terminal pin one before inserting the terminal pin existing

Resilience of the connecting part, preferably in the region of the lower end of the connecting part, is reduced. The connecting part becomes more rigid in the area concerned. A pre-existing elastic deformability can be reduced, so that between the outside of the

Connecting part and the inner wall of the receiving recess of the implant body adjusts the frictional connection and thereby the clamping connection against the withdrawal of the building device from the

Implant body acts.

By forming a clamping connection between the mounting device and the implant body by inserting the clamping pin in the

Through passage can be produced, loads on the jawbone can be avoided, as they can occur in conventional screw.

Also, the release of the clamping connection can be advantageous without burdening the jawbone significantly.

Due to the integral formation of the body part with the connecting part, the statics of the superstructure device is optimized and the superstructure device can be used in all two-part implant systems. Another advantage is due to the fact that the clamping pin takes up less space than the previously used screws. This leads, for example, to a stable statics with the same size of the construction device, since all components can be thicker. In addition, there is the possibility of making the implant body, which is usually limited to a diameter of 3.0 mm, even thinner. Preferably, the pin may have a diameter of 0.1 mm to 1.4 mm, preferably 0.15 mm to 1.0 mm, and most preferably 0.2 mm to 0.6 mm. The clamping pin can thus be made much thinner than a conventional screw, since no rotational forces must be transmitted. Since there is no more screw head, you can shorten the pen in any length and the passageway as a "screw shaft" or "pinhole" would thus be only slightly larger in diameter than the

Form clamping pin. Preferably, the passageway may have a diameter of 0.2 mm to 1.5 mm, preferably 0.25 mm to 1.1 mm, and most preferably 0.3 mm to 0.7 mm.

In addition, the clamping pin does not need a screw head, so that from

Implant body top edge could start a crown without socket.

The body part may comprise a socket. With this base the gums can be protected and / or the body part stabilized.

Furthermore, even with angled structures depending on the angle only a little to no socket needed. In addition, superstructures with stronger bends than today can be used, since the statics without large

Screw shaft is better. In addition, the construction device can be used for all previously available on the market implant body with internal connection. Thus, even older implants can be meaningfully supplied. Another advantage is that the clamping pin can be detachable again, so that samples, repairs, etc. are easier to carry out than in

Construction devices that are glued or wedged from below.

It can be provided that the lower end portion of the connecting part has a jaw device into which the through channel extends and which is formed expandable to the outer perimeter enlargement by inserting the clamping pin in the passageway, and / or that the passageway opens on the outside of the connecting part and the clamping pin inserted into the passageway exits with its end there and the exit end of the clamping pin is disposed on the outside of the lower end portion of the connection part to produce the enlargement of the outer periphery in this area.

To form the jaw device, the lower end portion of the connecting part may be formed slotted and it may be formed in the region of the slot a Klemmbackenausnehmung.

The jaw means may comprise jaws between which the jaw recess is formed. The proposed

Jaw device can, for example, by the number of

Jaws, which corresponds to the width of the jaws, can be varied. This can increase the force needed to deflect the jaws is to be set, and thus the power, the

Insertion of the clamping pin is to be applied in the through-channel.

It can be provided that the passage in the

Opens jaw recess.

Alternatively it can be provided that the passageway in the region of the jaw means outside the Klemmbackenausnehmung

opens.

The through-channel can be formed in the longitudinal central axis of the structural device or offset from the longitudinal central axis of the structural device.

It can also be provided that the passage channel at an angle to

Longitudinal axis of the building device is arranged arranged.

The outside of the jaw device may be cylindrical or polygonal prismatic. It can also be provided that the outside of the

Jaw device is cone-shaped.

It can further be provided that the cross-sectional contour of the

Jaw device is round or oval or polygonal.

The jaw device may be attached to the inner wall of the

Receiving recess of the implant body side facing at least partially a rough surface and / or one with macroscopic Depressions and elevations have structured surface. By these measures, the friction coefficient can be increased, so that at the same normal force between the jaw means and the inner wall of the receiving recess of the implant body, an increased adhesive force is formed.

It can be provided that the clamping pin has a clamping portion which cooperates with the inner wall of the clamping recess. The clamping portion may be opposite the shaft of the clamping pin

protrude.

The clamping portion may be conical or wedge-shaped or cylindrical or polygonal prismatic.

It can be provided that below the clamping recess a recessed behind the clamping recess release recess is arranged, in which the clamping portion of the clamping pin for releasing the formed by spreading the jaw device connection is inserted. It is thus possible, by further insertion of the clamping pin in the passage, the clamping connection between the mounting device and the implant body to solve again.

The clamping pin can be formed linear or curved. In this way, the clamping pin can pass longitudinally through the abutment post in the case of angled abutment parts and cause anchoring in the implant body by pressing abutment post parts against the rough screw part. By the

Possibility of curved shape, the cavity for the clamping pin and / or the passage channel statically meaningful follow the post design and does not need like a screw to the axis of the

Implant body are performed. The clamping pin may have a groove and / or an annular projection in its upper end portion. The groove may be provided as an engagement site for a pliers for pulling out the clamping pin. The annular

Projection may be provided to form a stop which limits the insertion of the clamping pin in the passageway. For example, an excessive spreading of the jaws can be avoided, which could lead to tearing of the implant body.

It can be provided that at the upper end portion of the

Connecting part is formed a cone which is complementary to a cone seat designed as an upper seat in the receiving recess of the

Implant body, and that for the connecting part, the inner wall of the lower end portion of the receiving recess of the implant body forms a lower seat. This design has the advantage that, because of the upper conical seat, which also acts as a sealing element, penetration of bacteria into the implant body is prevented and that an additional fastening device for the structural device is further provided. In an advantageous embodiment it can be provided that the cone formed at the upper end portion of the connecting part

self-locking cone is with a measured cone angle in the median plane of about 0.5 to 15 °, preferably 1 to 6 ° and most preferably 1 to 2 °. It is the angle, which in a sectional plane, which contains the central axis of the cone, between the two generatrix inclined to the central axis is measurable. This means that the angle of inclination of the generatrices with respect to the central axis, as for example for

Characterization of Morse cones is used, which is half the cone angle specified above.

It may further be provided that the adhesive force between the cone and the upper seat amounts to 30% to 60% of the adhesive force formed overall between the connecting part and the implant body.

Further, it can be provided that the adhesive force of the lower end portion of the connecting part in the lower seat 30% to 60% of the between the

Connection part and the implant body total trained adhesive force.

It may be of particular advantage that the receiving recess formed in the implant body, which is designed to receive the connecting part, is formed without an undercut. It is therefore provided that for the attachment of the connecting part in the receiving recess in the implant body no positive connection is formed, but a frictional clamping connection.

It may be of particular advantage that the connecting part for

is formed directly engaging in the receiving recess of the implant body. So there are no other elements, such as insertion sleeves, provided between the implant body and the connecting part. Further elements could favor the penetration of bacteria into the implant body. Regarding the implant body can be provided that the

Outer section of the implant body is round or oval or polygonal. It can be provided that the inner wall of the receiving recess of the implant body for the building device has at least partially a rough surface and / or a surface or smooth surface structured with macroscopic depressions and elevations. The friction coefficient can be increased by a rough surface and / or a surface structured with macroscopic depressions and elevations, so that an increased adhesion force is formed with the same normal force between the clamping jaw device and the inner wall of the receiving recess of the implant body. The smooth surface can offer the advantage of lower manufacturing costs.

It can be provided that the receiving recess of the

Implant body is formed in cross section round or oval.

Furthermore, it may be of particular advantage that the receiving recess of the implant body has a conically tapered inner wall, as described above.

There may be provided a kit of a previously described implant body and a clamping pin assembly described above. Embodiments of the device will be described below with reference to

Drawings explained in detail. The figures show in more schematic

Presentation:

Fig. 1 shows a first embodiment of the invention

Building device in a schematic sectional view;

Fig. 2 shows a second embodiment of the invention

Building device in a schematic sectional view;

Fig. 3 shows a third embodiment of the invention

Building device in a schematic sectional view;

Fig. 4 shows a fourth embodiment of the invention

Building device in a schematic sectional view;

Fig. 5 shows a fifth embodiment of the invention

Building device in a schematic partial sectional view;

Fig. 6 shows a sixth embodiment of the invention

Building device in a schematic partial sectional view;

Fig. 7 shows a seventh embodiment of the invention

Building device in a schematic partial sectional view;

Fig. 8 shows an eighth embodiment of the invention

Building device in a schematic partial sectional view;

9 shows a ninth embodiment of the invention

Building device in a schematic partial sectional view;

10 shows a tenth embodiment of the invention

Building device in a schematic partial sectional view;

Fig. 1 1 an embodiment of the prior art; an eleventh embodiment of the invention

Building device in a schematic partial sectional view, wherein the mounting device is inserted into the conventional implant body of Figure 1 1.

a twelfth embodiment of the invention

Building device in front view;

the construction device in Figure 13a in a sectional view along the section line Xlllb-Xlllb in Figure 13d.

the construction device in Fig. 13a in the side view in

Partial sectional view;

the construction device in Figure 13a in plan view. the implant body in Figure 13a in a sectional view.

the implant body in Figure 13a in the side view in partial section.

the implant body in Figure 13a in plan view.

the construction device in Fig. 13a in the front view in

Partial sectional view;

the construction device in Fig. 15a in side view;

the construction device in Fig. 15a in plan view; a twelfth embodiment of the invention

Building device in a schematic partial sectional view.

Fig. 1 shows a sectional view of the side view of a first

Embodiment of a construction device 20 according to the invention. In the illustration in Fig. 1, the building device 20 carries a top Superstructure 40 and is inserted into an implant body 10. The structural device 20 consists of the parts connecting part 22 and mounting part 24. These two parts are integrally connected to each other in the embodiment shown in FIG. The connecting part 22 is in the

1 mounted within the implant body 10 engaging, the body part 24 is disposed outside of the implant body 10.

The implant body 10 has a trained as a blind hole

Receiving recess on. The receiving recess extends in the illustrated case about 2/3 of the axial length of the implant body 10. The lower portion of the receiving recess has an internal thread 17 and a thread-like surface profile. The upper section of the

Receiving recess has a larger inner diameter than the lower portion, that is, the receiving recess is as a

Step recess formed.

The implant body 10 is as shown in Figs. 1-10 and 14

Embodiments designed as a rotationally symmetrical body having at its lower portion an external thread 15, the

Insertion is provided in a jawbone of a user. The implant body 10 is shown in the position which it occupies when arranged in a lower jaw bone, that is, in this installation position are the

Location assignments "bottom" and "top" related.

The implant body 10 can by means of a special tool in a

prepared blind hole are screwed into the jawbone. In the embodiment shown in Fig. 1 is a commercially available Implant body shown with internal connection.

In the installed state, as shown in Fig. 1, the building device 20 is disposed in the receiving recess of the implant body 10. The body part 24 of the building device 20 stands out in the state inserted into the jawbone above the gum. The body member 24 has a base 50 for the gums, which protects the gums. The connecting part 22 is in the embodiment shown in Fig. 1, as mentioned, integrally connected to the mounting part 24. The two parts can in modified embodiments but also as separate parts

be formed, which are interconnected, as below

described.

On the structural device 20, the superstructure 40 is attached. The

Superstructure 40 is a dental prosthesis mounted on the structural part 24. It can be a crown, a bridge or even a prosthesis. For example, the denture is glued, riveted, cemented or cast onto the structural part 24. The lower end portion of the connecting part 22 is as a

Jaw device 22k formed. In the exemplary embodiment illustrated in FIGS. 1 and 2, the clamping jaw device 22k is designed as a truncated cone with a centrally arranged slot-shaped clamping recess 22ak which divides the truncated cone into two clamping jaws. The

Building device 20 has a through-channel 28, which passes through both the structural part 24 and the connecting part 22. Of the

Through channel 28 extends into the clamping jaw 22k into the clamping recess 22ak. In the passageway 28 is of the Implant body 10 side facing away from the clamping pin 30 inserted. The jaws are spread by an inserted into the passageway, reaching into the clamping recess 22ak clamping pin 30 to the outside and lie to form a frictional connection to the

Thread grooves of the internal thread 17 at.

The clamping pin 30 is formed in the embodiment shown in FIG. 1 as a conical pin. The taper is formed so that the clamping jaws facing end face of the pin has a smaller diameter than the superstructure 40 facing end face. As a result, the clamping pin 30 has a wedge shape in cross section. The lower end portion of the clamping pin 30 forms a clamping portion 30k associated with the

Clamping recess 22ak of the jaw means 22k cooperates and spreads apart the two jaws, as described above.

The jaws of the jaw 22k device can at the

Internal thread 17 of the implant body 10 facing side a rough

Surface 22kr have. The rough surface can, for example, by the introduction of microscopic surface depressions by sandblasting or the like or by the introduction of macroscopic

Surface depressions, such as grooves or the like, are formed. Due to the rough surface 22kr, the frictional engagement between the

Joining member 22 and the implant body 0 amplified. The clamping pin 30 has at the upper, ie the superstructure 40 facing end portion, a groove 30r. In this groove, a pair of pliers can intervene, with the help of the clamping pin 30 can be easily in the passageway 28 of the building device 20 on or brought out again. It can be a conventional pliers or preferably a specially designed for this purpose pliers.

Fig. 2 shows a second embodiment of the building device 20, which is formed as the embodiment described in Fig. 1, with the

Difference that the structural device 20 is not formed in one piece. In this embodiment, it is only because of the non-integral construction of the structural device 20 is a non-patent execution. The embodiment shown in FIG. 2 has the disadvantage over the patented one-piece construction of the building device 20 in FIG. 1 that the parting line between the connecting part 22 and the structural part 24 can favor the penetration of bacteria into the implant body 10.

The mounting part 24 is formed as a ceramic body with a through hole formed by a tubular extension 22r of the metallic

Connecting parts 22 is penetrated. The tubular extension 22r protrudes from the upper end face of the connecting part 22, on which the mounting part 24 is arranged. The upper end face of the connecting part 22 is aligned in the installed state with the annular upper end face of the

Implant body 10. The body part 24 may be integrally connected to the connecting part 22, for example by gluing or kitten.

Fig. 3 shows a third embodiment of the building device 20, which is formed as the embodiment described in Fig. 2, with the

Difference that the connecting part 22 and the clamping pin 30 are formed so that the clamping connection by further insertion of the clamping pin 30 is releasable again. In this embodiment, only because of the non-integral construction of the building device 20 is not one patented design.

For this purpose, the clamping pin 30 at its lower end portion on a widened clamping attachment 30k. The shank of the clamping pin 30 springs back behind the clamping insert 30k. The clamping recess 22ak goes over the foot into a wider release recess 22af, which springs back relative to the clamping recess 22ak. If the clamping pin 30 is then inserted further into the through-channel 28, the clamping attachment 30k leaves the clamping recess 22ak and enters the wider release recess 22af. As a result, the jaws of the jaw device 22k spring back into the starting position and are no longer in contact with the internal thread 17 of the implant body 10. The frictional connection between the

Connecting part 22 and the implant body 10 is released, so that the

Build-up device 20 is removable from the implant body 10.

The exemplary embodiment in FIG. 3 shows by way of example that the spring force of the clamping jaws of the clamping jaw device 22k can be adjusted by weakening the material of the clamping jaws at the base point by a puncture. Another way to adjust the spring force is by choosing the

Modulus of elasticity and / or by the choice of the length and thickness of the

Given jaws.

The embodiment in FIG. 3 can also be modified with a one-piece construction device 20, as shown in FIG. 1.

Fig. 4 shows a fourth embodiment, which differs from the embodiments described above, especially in that the clamping pin 30 between the inner wall of the receiving recess of the Implant body 10 and the outside of the lower portion of the

Connecting part 22 engages. The passageway 28 is not in the

Longitudinal axis of the structural device 20 is formed and slightly inclined relative to the longitudinal central axis and opens laterally on the outside of the lower portion of the connecting part 22. It is a cylindrical

Clamping pin 30 is provided, which is guided through the passageway 28 with a slight inclination, and exits at its lower end from the mouth of the passageway and in the manner of a wedge between the outside of the lower portion of the connecting part 22 and the inner wall of the

Receiving recess of the implant body engages so that the

frictional connection is again formed by wedge action.

The lower portion of the connecting part 22 may be conical

peg-shaped end piece, but also as in the preceding

Embodiments be designed as a jaw device, optionally with a separate passageway 28 for a further clamping pin 30. The latter is not shown in Fig. 4.

The outer side of the clamping jaw has a rough surface 22kr, in particular in the region which rests against the internal thread 17 of the implant body 10 in the mounted state.

The passageway 28 has an upper end portion with a

enlarged inner diameter, in which engages a arranged at the upper end portion of the clamping pin 30 annular projection 30v. The annular projection 30v forms a stop which limits the insertion of the clamping pin 30. This will damage the Implant body 10 avoided by over-pressing the clamping pin 30 too tight.

FIGS. 5 to 10 show further detail views

Embodiments which are derived from the embodiments described above in FIGS. 1 and 2.

FIGS. 5 and 6 show exemplary embodiments in which the implant body is designed as in the exemplary embodiments described in FIGS. 1 and 2, with the difference that no internal thread 17 is provided and that the clamping jaw device 22k now has four clamping jaws each.

In the embodiment shown in Fig. 5 is the

Jaw device 22k formed as a cross-slotted cylinder. It is in the connecting section so a cylinder-cylinder pairing.

In the embodiment shown in Fig. 6 is the

Jaw device 22k as a cross-slotted truncated cone

educated. It is in the connecting section so a cone-cylinder pairing.

The embodiment shown in Fig. 7 is formed as the embodiment described in Fig. 6, with the difference that the

Implant body 10 has a conical receiving portion, in which engage the jaws 22r of the connecting part 22. It is in the connecting section so a cone-cone pairing. The embodiment described in FIG. 8 is like that in FIG. 7

described embodiment, with the difference that the receiving portion in the implant body 10 has a roughened surface 10r. The roughened surface 10r is shown as a macroscopically roughened surface for clarity. However, it may also be a microscopically roughened surface, as described above.

The embodiment described in FIG. 9 is like that in FIG. 7

formed embodiment, with the difference that the receiving portion in the implant body 10 facing surfaces of the jaws of the jaw device 22k have a roughened surface 22kr. The roughened surface 22kr is shown as a macroscopically roughened surface for clarity. However, it may also be a microscopically roughened surface, as described above.

The embodiment described in Fig. 10 is formed as the embodiment described in Fig. 7, with the difference that both the receiving portion in the implant body 10 and the

Receiving portion in the implant body 10 facing surfaces of the jaws of the jaw device 22k have a roughened surface 10r and 22kr. The roughened surfaces are presented for better illustration because of macroscopically roughened surfaces. However, they can also be microscopically roughened surfaces, as described above. Figures 1 1 and 12 illustrate the with the invention

Building device achievable advantages over the prior art.

Fig. 11 shows a prior art constructional device 20 which is secured in the implant body by means of a fastening screw 20b. The passage channel 28 required for introducing the fastening screw 20b has a considerably larger diameter than the through-channel 28 in FIG. 12, which shows a structural device 20 according to the invention. The clamping pin 30 shown in FIG. 12 can have a much smaller diameter without any loss of function than the fastening screw 20b in FIG. 11, so that the inventive construction device 20 (FIG. 12) in FIG

Cross section is much less weakened than the structural device 20 according to the prior art (Fig. 1 1). In both cases, it is an angled mounting device 20 which can be used when the jawbone is tilted.

Further, the comparison of the two construction principles shows that

if necessary, a prior art structural device is interchangeable with a structural device of the invention, without the

Implant 10 to change. As already described in the above

Execution examples shown, the jaw means so

be formed so that it can be inserted into the internal thread 17 of the implant body 10 and abuts by inserting the clamping pin 30 in the passageway 28 to the thread grooves with a clamping fit.

FIGS. 13a to 15c show a further embodiment. The implant body 10 has an oval cross section, so that compared to the implant body shown in FIGS. 1 to 10 with a smaller footprint in comparison has an enlarged surface, which contributes to better adhesion in the bone body. Instead of a

Externally threaded, the implant body 10 sawtooth-like projections 15 v, the falling edge includes approximately a right angle to the surface of the implant body 10 and is directed to the top of the implant body 10. The implant body 10 has an oval recess with a conical cross section, which has an undercut 10h in the lower end section (FIGS. 14a to 14c).

The connecting part 22 of the integrally formed building device 20 is formed congruent to the upper portion of the recess of the implant body 10, so that the structural device 20 is already aligned exactly when inserted into the implant body 10. The jaw mechanism 22k is formed only in the lower third of the connecting part 22, not in the lower half as in the preceding embodiments (FIG. 15b). When spreading the two jaws of the jaw device 22k with the insertion of the clamping pin 30, these attach to the o. G.

Undercut 10h in the implant body 10, so that next to a

Tangle also enters a form fit, the tight fit of the

Building device 20 in the implant body 10 further improved (Fig. 13c).

The passageway 28 in the building apparatus 20 is formed as a cylindrical passageway into which the clamp pin 30 is insertable under play (FIG. 15a). The clamping pin 30 has a cylindrical shaft and a Tapered end portion, which facilitates the spreading of the jaws. The clamping recess 22ak (FIG. 15b) of FIG

Jaw device 22k is narrower than the shaft diameter of the clamping pin 30, the clamping portion 30k is formed by the lower portion of the cylindrical shaft. The clamping pin 30 can in the

Build-up device 20 are introduced only so far until the cone tip of the clamping pin rests on the bottom of a formed in the implant body 10 blind hole. The embodiment described in FIG. 16, in contrast to the exemplary embodiments described in FIGS. 1 to 10, has an implant body 10, the receiving recess of which is not designed as a stepped recess. Rather, it is a conical recess, which has a conical undercut in the lower half. The sign of the cone angle therefore changes during the transition from the upper half to the lower half of the receiving recess of the implant body 10.

The present invention is not limited to those presented here

Embodiments limited, but can also be according to the

Modify the subject invention, in particular, the features of the embodiments are interchangeable.

LIST OF REFERENCE NUMBERS

10 implant bodies

10h undercut

10r roughened surface

15 external thread of the implant body

15v lead

17 internal thread of the implant body

20 construction device

20b fixing screw

22 connecting part

22af release recess

22ak clamping recess

22k jaw device

22kr roughened surface

22r tubular extension

24 body part

28 through-channel

30 clamping pin

30k clamping section

30r groove

30v annular projection superstructure

Base for the gums

Claims

claims

Building device (20) for building on and / or in one

Implant body (10) having a receiving recess for the

Build-up device comprises;

the building apparatus comprising:

a connecting part (22) for insertion into the receiving recess of the implant body (10) and a mounting part (24) adjoining the connecting part (22) for receiving a superstructure (40),

wherein the connecting part (22) and the mounting part (24) are integrally connected,

characterized,

in that the upper end section of the connecting part (22) is complementary to the receiving recess of the implant body (10), which has a tapered inner wall,

in that in the mounting part (24) and in the connecting part (22) or at least in the connecting part (22) a passageway (28) is formed, in which a clamping pin (30) is insertable to form a clamping connection of the connecting part (22) with the Inner wall of the receiving recess of the implant body (10), and

that the clamping connection is formed by that with the

Inserting the clamping pin (30) in the passageway (28) a Outside perimeter enlargement of the connecting part (22) and / or acting against a deformation stiffening of the connecting part (22) is formed.

Building device according to claim 1,

characterized,

that the outer circumference enlargement and / or the stiffening in the

Area of the lower end of the connecting part (22) is formed.

Building device according to claim 1 or 2,

characterized in that the lower end portion of the connecting part (22) comprises a jaw means (22k) into which the

Through passage (28) extends into and the

Outer perimeter enlargement is formed spreadable by inserting the clamping pin (30) in the passageway (28), and / or that the passageway (28) on the outside of the

Connecting member (22) terminates and the inserted into the passageway (28) clamping pin (30) exits there with its end and the exiting end of the clamping pin (30) on the outside of the lower end portion of the connecting part (22) is arranged to increase the magnification of Outside perimeter in this area to produce. Building device according to claim 3,

characterized,

in that, to form the clamping jaw device (22k), the lower end section of the connecting section (22) is slotted and, in the region of the slot, a clamping jaw recess (22ak)

is trained.

Building device according to claim 3 or 4,

characterized,

in that the clamping jaw device (22k) has clamping jaws, between which the clamping jaw recess (22ak) is formed.

Building device according to one of claims 4 or 5,

characterized,

that the passage channel (28) opens into the Klemmbackenausnehmung (22ak).

Building device according to one of claims 4 or 5,

characterized,

in that the through-channel (28) opens out in the region of the clamping jaw device (22k) outside the clamping jaw recess (22ak).

Building device according to one of the preceding claims, characterized

the passageway (28) in the longitudinal center axis of the

Building device (20) or offset from the longitudinal center axis of the

Building device (20) is formed.

9. Assembly device according to one of the preceding claims, characterized

the through-channel (28) is arranged at an angle to the longitudinal center axis of the building device (20).

10. Construction device according to one of the preceding claims,

characterized,

in that the outside of the clamping jaw device (22k) is cylindrical or polygonal prismatic.

11. Construction device according to one of the preceding claims,

characterized,

that the outside of the jaw means (22k) is conical.

12. Construction device according to one of the preceding claims,

characterized,

the cross-sectional contour of the clamping jaw device (22k) is round or oval or polygonal.

13. A construction device according to one of the preceding claims,

characterized,

in that the clamping jaw device (22k) at least partially has a rough surface (22kr) and / or a surface structured with macroscopic depressions and elevations on the side facing the inner wall of the receiving recess of the implant body (10) and / or a smooth surface.

14. Building device according to one of the preceding claims, characterized in that

in that the clamping pin (30) has a clamping section (30k) which cooperates with the inner wall of the clamping recess (22ak).

15. A construction device according to claim 14,

characterized,

in that the clamping section (30k) protrudes relative to the shaft of the clamping pin (30).

16. A construction device according to one of claims 14 or 15,

characterized,

that the clamping portion (30k) is conical or wedge-shaped or cylindrical or polygonal prismatic.

17. A construction device according to any one of claims 14 to 16,

characterized,

that below the clamping recess (22ak) one behind the

Clamping recess (22ak) recessed release recess (22af) is arranged, into which the clamping portion (30k) of the clamping pin

(30) for releasing the connection formed by spreading the jaw means (22k) is insertable.

18. Building device according to one of the preceding claims,

characterized,

that the clamping pin (30) is formed linear or curved.

19. A construction device according to one of the preceding claims, characterized,

in that the clamping pin (30) has a groove (30r) and / or an annular projection (30v) in its upper end section.

Building device according to one of the preceding claims, characterized

that at the upper end portion of the connecting part (22) a cone is formed, which is complementary to a cone seat

formed upper seat in the receiving recess of the

Implant body (10), and

that for the connecting part (22), the inner wall of the lower

End portion of the receiving recess of the implant body (10) forms a lower seat. 21. A construction device according to claim 20,

characterized,

in that the cone formed at the upper end portion of the connecting part (22) is a self-locking cone with a cone angle of about 0.5 to 15 ° measured in the median plane, preferably 1 to 6 ° and most preferably 1 to 2 °.

Building device according to claim 21,

characterized,

the adhesive force between the cone and the upper seat is 30% to 60% of the total adhesive force formed between the connecting part (22) and the implant body (10).

23. A construction device according to claim 20,

characterized,

in that the adhesive force of the lower end portion of the connecting part (22) in the lower seat is 30% to 60% of the total adhesive force formed between the connecting part (22) and the implant body (10).

24. A construction device according to one of the preceding claims 4 to 23, characterized

that in the implant body (10) formed

Receiving recess is formed without undercut.

25. A construction device according to one of the preceding claims,

characterized,

in that the connecting part (22) is designed for direct engagement in the receiving recess of the implant body (10).

26 implant body (10) for receiving a building device (20) according to any one of the preceding claims,

characterized,

the implant body (10) has a receiving recess for the

Building device (20).

27. implant body according to claim 25,

characterized,

that the outer cross section of the implant body (10) is round or oval or polygonal.

28. implant body according to claim 26 or 27, characterized,

that the inner wall of the receiving recess at least partially a rough surface (10r) and / or one with macroscopic

Depressions and elevations having a textured surface or smooth surface.

Implant body according to one of claims 26 to 28,

characterized,

in that the receiving recess of the implant body (10) ^'

Cross-section is round or oval.

30. Implant body according to one of claims 26 to 29,

characterized,

the receiving recess of the implant body (10) has a tapered inner wall.

Kit comprising an implant body (10) and a

Building device (20) with clamping pin (30),

wherein the implant body (10) according to any one of claims 25 to 28 and / or the building device (20) with the clamping pin (30) according to one of claims 1 to 24 is or is formed.