CN202128556U - artificial tooth implant - Google Patents

Abstract

The utility model discloses an artificial tooth implant, which comprises an artificial tooth root and an abutment tooth formed by integral sintering of ceramic powder. The artificial tooth root comprises a molded column and a conical neck connected to one end of the column, and the outer surface of the column is formed with a chipless thread tapping thread; the abutment tooth is connected to the end face of the conical neck opposite to the column, and comprises a tapered side face and one or more detent faces located on the tapered side face. Therefore, the artificial tooth implant of the utility model can provide a surgical method of simultaneous tapping and locking on the gums through the artificial tooth root, and provide an artificial crown assembly with the abutment tooth.

Description

artificial tooth implant

technical field

The utility model relates to an artificial tooth implant, in particular to an artificial tooth implant structure which is formed by sintering ceramic powder and has a geometric thread without scrap wire tapping on the surface of the artificial tooth root.

Background technique

The artificial tooth root implants used in common dental implant surgery are mostly composed of three-body components such as implant base, screw rod and abutment tooth base, such as Taiwan's new patent No. M391380, utility model patent No. M369138, Invention Patent No. 200938170 and Invention Patent No. 201021768 are similar to the three-body poses. This three-body form is mechanically combined between the abutment tooth seat and the implant seat through a screw, and these three components are made of metal materials. For this reason, their interlocking geometric structures are used in manufacturing In this case, more expensive and more precise processing procedures are required, so that the manufacturing cost cannot be effectively reduced, and the dental implant surgery becomes an incentive for high-priced medical treatment.

Furthermore, although the human body does not have a great rejection phenomenon for the artificial tooth root implant made of the metal material, the skeletal tissue can only adhere to the surface of the artificial tooth root implant during osseointegration. Therefore, simply relying on the thread design of the artificial tooth root implant cannot effectively maintain the gripping force between the artificial tooth root implant and the bone tissue. In other words, after the commonly used artificial tooth root implants with only a thread design are tightly fitted to the bone, there is still a hidden danger of inversion and loosening, resulting in the inability of the artificial tooth root implants to be stably fixed. The phenomenon of reverse loosening is caused by the threaded occlusal structure of the artificial tooth root implant and the gum bone. There is a gap between the threaded hole and the screw post between the female thread of the gum bone and the male thread of the artificial tooth root implant. The problem is that because the two are formed separately, a gap is necessary to provide the two to be smoothly screwed together.

To sum up, the current oral implant surgery has the following disadvantages when it is implemented: expensive materials, complicated surgical procedures, poor stability in the initial postoperative period, bone resorption, and the implant and abutment during restoration It is difficult to get in place between the implants, and the slight movement of the abutment relative to the implant due to the force during the chewing process results in gaps, which cause leakage and loosening of the upper parts.

Utility model content

In view of this, the technical problem to be solved by this utility model is to provide an artificial tooth root implant, so that the artificial tooth implant has the characteristics of simple implantation, no worry about loosening, and favorable osseointegration in structure, so as to be more suitable Advanced ceramic powder molding and sintering molding meet the needs of rapid mass production and cost reduction.

In order to solve the above-mentioned technical problems, the technical solution of the utility model is realized as follows: an artificial dental implant, which includes an artificial tooth root and a set tooth integrally formed, and the artificial tooth root includes a molded cylinder and a Connected to the tapered neck at one end of the cylinder, the outer surface of the cylinder is formed with chipless tapping threads; the abutment tooth is connected to the end surface of the tapered neck opposite to the cylinder, which includes a tapered side and One or more detent surfaces flanking the taper.

Further, the artificial tooth implant is integrally sintered and molded by ceramic powder.

Further, the chipless wire tapping includes more than one protruding extruded part formed on the crest and valley of each thread pitch, so that the cross-sectional shape of the chipless wire tapping is non-circular.

Further, the thread angle of the thread of the chipless wire tapping thread is larger than the thread angle of the pre-drilled threaded hole in the gum.

Further, it is characterized in that the tapered side surface of the abutment tooth is a conical surface, and the detent surface is formed on a plane on one side of the conical surface.

Further, the tapered side of the abutment tooth is a pyramidal surface, and the detent surface is formed on the plane of any side of the pyramidal surface.

Further, the taper of the tapered side is Morse taper.

The technical effect achieved by the utility model is as follows: The artificial tooth implant of the utility model is implanted on the gum bed in the way of chipless wire tapping, and can be simultaneously tapped and locked on the gum bed pre-drilled through the chipless wire tapping thread structure. The action of the threaded hole enables the artificial dental implant to be fastened with the abutment teeth and positioned on the gum bed when the tapping is completed, achieving the effect that the artificial dental implant can be closely combined with the gum bed. In addition, through the extrusion part structure of the chipless wire tapping thread, a gap can be formed to provide the bone tissue proliferation of the gum when the tapping and locking are completed, so that the bone tissue of the gum can be closely connected with the artificial tooth implant, so that it will not reverse Loose effect. Furthermore, the utility model can achieve the effect of stable combination with the artificial crown through the structure of the taper side of the abutment tooth based on the Morse taper.

Description of drawings

Fig. 1 is a three-dimensional schematic view of a preferred embodiment of the present invention.

Fig. 2 is a schematic front view of a preferred embodiment of the utility model.

FIG. 3 is a schematic cross-sectional view of A-A of the preferred embodiment in FIG. 2 .

Fig. 4 is an enlarged schematic view of the thread structure of a preferred embodiment of the present invention.

Fig. 5 is a three-dimensional schematic view of another preferred embodiment of the present invention.

Fig. 6 is a schematic diagram of an application state of a preferred embodiment of the present invention.

Fig. 7 is an enlarged schematic cross-sectional view of the application state of a preferred embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view of B-B in Fig. 7 of the present invention.

Fig. 9 is a schematic cross-sectional view of C-C in Fig. 7 of the present invention.

Detailed ways

Referring to Fig. 1-shown in Fig. 3, the artificial tooth implant 10 of the present utility model, its preferred embodiment is to comprise an artificial tooth root 1 and a table tooth 2 two parts that are integrally sintered and formed with ceramic powder and constitute, wherein : The artificial tooth root 1 is an integrally molded and sintered structure for combining with the gum 20 (as shown in Figure 6), which includes a molded cylinder 11 and a tapered neck connected to one end of the cylinder 11 Part 12, the outer surface of the cylinder 11 is formed with a chipless tapping thread 111, and the tapered neck 12 is a circular or tapered body of other geometric shapes. And this abutment tooth 2 is a structural body that is integrally molded and sintered with the above-mentioned artificial tooth root 1, and it is connected to the end face 121 of the tapered neck 12 opposite to the cylinder 11, so as to be combined with the artificial tooth crown 30 (as shown in FIG. 6), and the preferred structure of the abutment tooth 2 includes a tapered side 21, and more than one detent surface 22 located on the tapered side 21, thereby constituting the artificial dental implant 10 of the present invention.

Through the above-mentioned artificial tooth root 1 and abutment tooth 2 of the present invention, it is necessary to use ceramic powder to mold the two-part structure of the artificial tooth root 1 and the abutment tooth 2, and then sinter them together to form the artificial tooth of the present utility model. The artificial tooth root 1 and the abutment tooth 2 of the implant 10 can be molded integrally and rapidly, which can achieve the effects of simplifying the manufacturing procedure and reducing the cost. Moreover, the integrally formed structure of the present invention allows the artificial tooth root 1 and the abutment tooth 2 to be positioned simultaneously when the artificial dental implant 10 is positioned on the gum bed 20, thereby achieving the effect of fast and simple surgical operation.

Referring to Fig. 3 and Fig. 4, the preferred embodiment of the artificial tooth root 1 of the present invention also includes that the thread 112 of the chipless thread 111 is a tapered thread, and its thread angle A1 is larger than that of the pre-drilled tooth bed 20. The thread angle A2 of the threaded hole 201 is set, and more than one protruding extrusion part 113, 114 is formed on the crest and valley of the thread 112 of each pitch, so that the cross-sectional shape of the chipless thread 111 It is non-circular.

Referring again to FIG. 1, the preferred embodiment of the abutment tooth 2 of the present invention further includes that the tapered side surface 21 is a conical surface, and the detent surface 22 is formed on a plane on one side of the conical surface; or as shown in FIG. 5 , the taper side surface 21 is a polygonal pyramid surface, and the braking surface 22 is formed on the plane of any side of the pyramid surface; in this way, it can provide the doctor to bite the tool on the braking surface 22 when performing dental implantation, and carry out the artificial tooth root 1 The operation of rotating and locking the gums 20 . Furthermore, the preferred taper of the tapered side 21 of the present invention is based on the Morse taper, which is beneficial to combine with the artificial dental crown 30 .

Referring to Fig. 6, when the artificial tooth implant 10 of the present utility model is actually used, the screw thread 111 of the artificial tooth root 1 is tapped and locked with the threaded hole 201 pre-drilled in the gum 20, and passed through the chipless wire. The thread 112 of the tapping thread 111 and the extrusion parts 113 and 114 perform tapping and locking together to complete the implantation of the artificial tooth implant 10 . Moreover, referring to Fig. 7, due to the pre-drilled threaded hole 201 in the gum 20, the shape of the thread 202 is not yet complete, and the thread angle A1 of the chipless thread 111 of the utility model is larger than the thread angle of the threaded hole 201 A2. Therefore, when the artificial tooth root 1 is rotated and locked into the threaded hole 201 of the gum 20, the thread 112 of the threaded thread 111 will be tapped and locked with the threadless wire to simultaneously complete the tapping and locking actions, thereby reducing the procedure of dental implant surgery , so as to obtain the effect of simple planting and not easy to loosen.

In particular, referring to Fig. 8 and Fig. 9, when the thread 112 of the chipless thread tapping thread 111 of the present invention is in the process of tapping and locking, the extrusion part 113 of the crest of the thread 112 can be used The first gap 203 is extruded in the threaded hole 201 of the gum 20, and the second gap 204 can be squeezed out in the threaded hole 201 of the gum 20 by using the extrusion part 114 of the thread 112. The first gap 203 and the second gap 204 will become a space for bone tissue to re-grow after the operation, so that after the bone tissue grows and fits closely in the first gap 203 and the second gap 204, it can reach a path that limits the reverse rotation of the chipless thread 111, so that artificial teeth can be implanted. The body 10 does not have the worry of being reversed and loosened.

Furthermore, the taper side 21 of the abutment tooth 2 of the present invention is based on the Morse taper, so when the artificial crown 30 and the abutment tooth 2 are assembled, the static fit between them can be precisely positioned. Because the taper is very small, the artificial dental crown 30 can be easily disassembled and assembled when required.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model.

Claims (7)

1. An artificial tooth implant, which comprises an artificial tooth root and a set tooth integrally formed, is characterized in that: the artificial tooth root comprises a molded cylinder and a tapered neck connected to one end of the cylinder, The outer surface of the cylinder is formed with chipless tapping threads; the abutment tooth is connected to the end surface of the tapered neck opposite to the cylinder, and includes a tapered side and more than one detent surface located on the tapered side. 2. The artificial dental implant according to claim 1, characterized in that, the artificial dental implant is integrally sintered and molded from ceramic powder. 3 . The artificial dental implant as claimed in claim 1 , wherein the chipless thread includes more than one protruding extrusion portion formed on the crests and troughs of each thread pitch. 4 . 4. The artificial dental implant according to claim 3, characterized in that, the thread angle of the thread thread of the chipless wire tapping is larger than the thread angle of the pre-drilled thread hole in the gum. 5. The artificial dental implant according to claim 1, wherein the tapered side of the abutment tooth is a conical surface, and the detent surface is formed on a plane on one side of the conical surface. 6 . The artificial dental implant according to claim 1 , wherein the tapered side of the abutment tooth is a pyramidal surface, and the detent surface is formed on a plane of any side of the pyramidal surface. 7 . 7. The artificial dental implant according to claim 1, 5 or 6, characterized in that, the taper of the tapered side is Morse taper.

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