Dental prosthesis mounted on implant and method of fabricating the same

The present invention is an implant-supported denture having a plurality of support structure posts each received in a conical receiving hole of an enossal implant, wherein the support structure post is provided. Regarding the form having an okklusal conical pin to connect with the denture.

[0002] [Conventional Techniques] Enoszar implants, each with one support structure post, have become increasingly used for mooring dentures. The use of support structure posts (EP0707835A1), in which the conical compartment is inserted into the corresponding conical hole of the implant in shape and frictional connection and secured by a central screw, is another geometrically toothed bond. Compared to the type, it has the advantage that high position stability is guaranteed under load and rotational positioning is possible at any desired position. The latter is particularly advantageous in the case of support structure posts in which the occlusal support pins provided to connect with the denture are bent. In addition, the conical bond between the enoszar implant and the support structure post is made without gaps and to prevent bacterial invasion.

[0003] If the support structure post is intended to be used solely to stabilize and hold a mucosally supported denture, a configuration as a magnet anchor or ball anchor is selected. In each case, an anchor element is embedded in the prosthesis that allows a dissociable bond to the head of the support structure post with a magnetic or spherical bond. A firm, supportive bond between the denture and the support structure post is not made here, where any force generated is supported by the implant via the support structure post.

[0004] For implant-supported configurations of dentures, conical crown technology is a proven method of reliability. In this case, each support structure post is provided with an occlusal conical pin, which connects to the denture to transmit force.

[0005] Dental practice usually involves taking an impression that the positions of all conical pins are defined. From this impression, an analog model is formed in the workplace by a dental technician. The dentist models the primary crown with wax on a conical pin and pre-cuts it with a milling device to the appropriate cone angle. The primary crown is then pinned and buried. That is, the primary crown is cast-molded, removed from the buried material, radiated and fitted. The primary crown is post-milled and polished. On top of the primary crown is a secondary crown made of modeling plastic and wax, which is manufactured as a porcelain bridge or as a cap with retention, which adheres to a metal frame, as a cap without retention or processed into a prosthesis. This secondary crown is pinned and buried. That is, the secondary crown is cast-molded, removed from the buried material, radiated and fitted.

[0006] This production requires significant work force in the workplace of the dentist and under the dentist. The number of hospital visits required for the patient increases.

[0007] [Problems to be Solved by the Invention] The problems of the present invention are to improve the implant-supported denture of the form described at the beginning, to obtain an impression, to make a model, and to make a milling technique in the workplace of a dentist. It is to allow the final processing directly into the patient's oral cavity using prefabricated parts without casting techniques.

[Means for Solving the Problems] The problems of the present invention are<u style="single">An implant-supported denture that has multiple support structure posts, each received in the conical socket of an enossal implant, the support structure post okklusal to bond with the denture. ) Conical pins, each of which is provided with a plurality of conical caps embedded in the basal notch of the denture substrate, each of which is shaped to the corresponding conical pin. In the form of having a conical hole, the bazaar notch that receives the conical cap has a larger and lateral filling opening in all directions than the conical cap.</u>It was solved in.

[0009] By using the embedded conical cap as a coupling member between the conical pin of the support structure post and the denture, one time using prefabricated parts and without pre-impression and model fabrication. It became possible to complete the denture by going to the hospital. In this case, the conical cap is joined in a conventional manner at a position placed on the conical pin, for example by gluing or polymerization. In particular, modeling the primary crown on the conical pin of the support structure post eliminates the need to manufacture and process the primary crown. This eliminates the need to perform some other work in the dentist's workplace after the original denture has been manufactured and adjusted by the dentist. No need to take any impressions or model.

[0010] By using only the prefabricated parts, the drawbacks and difficulties caused by the expansion operation of the buried material are eliminated. Costly modeling of the primary and secondary parts is eliminated as well as the time-consuming finishing work of the secondary parts. Casting mistakes are avoided. The relatively small amount of material used reduces the amount of material consumed as well. Achievable fit accuracy is still maintained.

The orientation of the conical pin is optimally achieved by the free positioning of the straight support structure post and the bent support structure post within the conical hole of the implant.

[0012] A retaining protrusion is provided on the outside of the conical cap in an advantageous manner. This retaining process allows for a stable mooring of the conical cap on the denture base. In this case, the retaining process can be, for example, an annular ridge.

[0013] Further, the present invention also relates to a method for producing an implant-supported denture. In this case, one support structure post, each with an occluzar conical pin, is inserted into multiple enoszar implants.

Using a prefabricated conical cap as a coupling member.<u style="single">But</u>This will be possible<u style="single">Ming dynasty</u>The feature is that each one in the area of the support structure post forms a bazaar notch with a lateral filling opening in the denture base and is adapted to each conical pin of the support structure post. Place two conical caps and dentures so that each conical cap protrudes into the bazaar notch<u style="single">Insert</u>Enter, fill each bazaar notch with self-curing plastic through a lateral filling opening, and fill the denture with the plastic after curing.<u style="single">After</u>To process<u style="single">be able to</u>That is.

[0015] By the method described above, the prepared denture is placed and completed by a dentist with only one visit, using exclusively prefabricated parts. In doing so, no separate machining step is required in the dentist's workplace. Therefore, the patient can leave the dentist with the completed denture immediately after inserting the denture.

[Embodiments of the Invention] FIG. 1 shows an enossal implant 1. This enoszar implant 1 is screwed into a screw hole prepared in the mandible. After the implant 1 has been inserted and healed, the support structure post 2 is inserted into the corresponding conical hole 4 of the implant 1 with a conical pin 3 on the implant side and secured with a central screw 5.

The support structure post 2 has a conical pin 6 at the occlusal end protruding from the implant 1. In the finished state, that is, after being combined with the denture, the conical pin 6 holds the conical cap 7. The conical cap 7 has a conical hole 8, and the shape of the conical hole 8, in particular its diameter and cone angle, is matched to the conical pin 6. The cone angle between the conical pin 6 and the conical hole 8 is preferably in the range of 4 ° to 8 °, for example about 6 °.

The conical cap 7 has an annular ridge 9 on the outside as a retaining protrusion. This retaining protrusion serves to moor the conical cap after it has been embedded in the plastic.

[0019] FIGS. 2 to 6 show a series of machining steps for manufacturing the denture 10. The completed state is shown in Figure 7.

[0020] FIG. 2 shows a state in which the enoszar implant 1 as shown in FIG. 1 is inserted into the mandible 11. Support structure Post 2 is inserted and fixed in the implant. Straight, i.e., unbent support structure posts 2 can be fixed directly at any rotational position, whereas bent support structure posts (not shown) are first properly aligned with the expected push direction. It is positioned and then fixed in this rotational position.

[0021] Next, the conical cap 7 is placed on the conical pin 6 of the support structure post 2 (FIG. 3).

In a prefabricated denture 10 (or an existing denture), a bazaar notch 13 is formed in the base 12 where the implant 1 is present in the jaw, for example by cutting. Everywhere, the bazaar notch 13, which is larger than the receiving conical cap 7, has a lateral filling opening 14. The filling opening 14 is advantageously cut from a lingual direction.

[0023] Since the denture 10 prepared in this way is placed on the jaw in the arrangement shown in FIG. 5, each of the conical caps is located in the bazaar notch 13. The conical cap 7 is secured to the base 12 of the denture 10 with a self-hardening plastic that is filled through the filling opening 14 (FIG. 6). After the plastic has hardened, the denture 10 is removed from the patient's mouth and post-processed in the area of the bazaar opening and the filling opening 14. The conical cap 7 is fixed in the final position by the denture 10. This, on the one hand, ensures that all conical caps 7 are oriented accurately with respect to their condition and orientation, especially with respect to interdivision, to the conical pins 6 of all implants moored in the patient's jaw. On the other hand, it is ensured that the conical cap 7 is stably anchored to the base 12 of the denture 10 so that the denture is fully supported by the jaw to transmit force.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal cross-sectional view showing a support structure post inserted into an implant holding a conical cap.

FIG. 2 is a vertical cross-sectional view showing one of a series of steps in producing an implant-holding denture.

FIG. 3 is a vertical cross-sectional view showing one of a series of steps in producing an implant-holding denture.

FIG. 4 is a vertical cross-sectional view showing one of a series of steps in producing an implant-holding denture.

FIG. 5 is a vertical cross-sectional view showing one of a series of steps in producing an implant-holding denture.

FIG. 6 is a vertical cross-sectional view showing one of a series of steps in producing an implant-holding denture.

FIG. 7 is a vertical cross-sectional view of the completed denture.

[Code Description] 1 Implant, 2 Support Structure Post, 6 Conical Pin, 7 Conical Cap, 8 Conical Hole, 10 Denture, 11 Mandible, 12 Hypokeimenon, 13 Bazaar Notch, 14 Fill Opening