JPH06315488A - Connection structure of upper structure mounted on implant - Google Patents

Abstract

PURPOSE:To adjust the relative position between implants as required to fit in the condition in the patient's mouth using regulated implants by rotatably connecting a pair of upper structure by a connecting member. CONSTITUTION:Upper structures 1 and 1 of a pair of implant 2 and 2 are connected by a connecting member 10. A spherical part 11 of the connecting member 10 is rotatably abutted to a side face of the implant 2. After connecting the implant 2 with the connecting member 10 in a state arranged in a designated position, the connecting member 10 is heated and then a piece of wax 13 in a passage 12 is hardened exposed between the spherical part 11 and the side of the implant 2 to connect the implant 2 and the connecting member 10 mutually by the wax 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for an upper structure mounted on an implant in which a base is embedded and fixed in an alveolar bone.

[0002]

2. Description of the Related Art Conventionally, a method of mounting a denture using an implant (artificial root) has been proposed. In this method, the base of the implant is embedded and fixed in the alveolar bone of the patient, and the upper structure of the denture is attached to the tip of the implant. The superstructure is covered with a prosthetic crown made of porcelain or the like that resembles the appearance of natural teeth.

By the way, in the case of mounting a denture on a patient over a plurality of teeth, an implant 25 as shown in FIG. 8 is used. In this case, since the condition of the mouth is different for each patient, various types of implants 25 are prepared in advance.
The implant 25 that was in the condition of the mouth of the patient was buried. After that, the prosthetic crown 27 is adhesively fixed to the upper structure 26 of the implant 25.

[0004]

As described above, it is necessary to prepare various kinds of implants 25 so as to match the condition of the mouth of the patient. This would take time and labor, and the denture would be expensive.

The present invention solves the above drawbacks,
The purpose is that even if the upper structure of the implant is standardized and manufactured, it is possible to respond to different mouth conditions for each patient, and therefore, it is easy to manufacture a denture,
Another object of the present invention is to provide a connecting structure for an upper structure to be attached to an implant, which can manufacture a denture at low cost.

[0006]

A connecting structure for an upper structure to be mounted on an implant of the present invention has a spherical portion capable of abutting a side surface of the upper structure, and a wax is provided in a passage opening to the spherical portion. A connecting member in which the agent is enclosed is disposed between the pair of upper structures, the side surface of the upper structure is in contact with the spherical portion of the connecting member, and the contact portion flows out from the passage. The upper structure and the connecting member are connected to each other by a wax, which achieves the above object.

[0007]

Since the spherical portion of the connecting member is in contact with the side surface of the implant, the relative positional relationship between the implants can be adjusted arbitrarily. After adjusting the relative position between the implants, the brazing agent is melted from the passage of the coupling member between the spherical portion of the coupling member and the side surface of the implant, so that the implant and the coupling member are mutually coupled with the brazing agent. can do.

Therefore, in the case of positively implanting a plurality of implants, it is possible to use the standardized superstructure to adjust the disposition of the superstructure to the condition of the mouth of the patient.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a pair of implants 2, 2 having a base embedded and fixed in an alveolar bone 3 of a patient, which are connected to each other by a connecting member 10.

In the figure, reference numeral 1 denotes an upper structure of a denture mounted on an upper portion of an implant 2. The upper structure 1 is covered with a prosthetic crown 5 made of porcelain or the like and having an appearance similar to a natural tooth.

Implant 2 fixed to the alveolar bone 3
Is formed in a cylindrical shape from metal, ceramics or the like, as shown in FIGS. The implant 2 is embedded and fixed in the alveolar bone 3,
The tip of the is projected from the alveolar bone 3.

The upper structure 1 attached to the tip of the implant 2 is made of an alloy such as gold, platinum, silver or palladium. A curved surface 6 is formed on the tapered surface 4 formed on the peripheral side surface of the upper structure 1. The curved surface 6
Are formed at two positions corresponding to 180 °.

The connecting member 10 has a spherical surface portion 11 that can contact the curved surface 6 of the upper structure 1. The radius of curvature of the spherical portion 11 is formed to be substantially equal to the radius of curvature of the curved surface 6, and when the spherical portion 11 of the connecting member 10 is fitted into the curved surface 6, the connecting member 10 bends the spherical portion 11. It can rotate freely while being in contact with the surface 6.

As shown in FIG. 6A, the connecting member 10
Has a passage 12 opening to the spherical surface portion 11, and the passage 1
A wax 13 is enclosed in 2. The connecting member 10 may be formed as a sphere, or spherical portions 11, 11 may be provided at both ends.
You may form in the rod shape which has. When the connecting member 10 is formed in a rod shape, as shown in FIG. 6B, the hemisphere 18 may be formed by connecting both ends of a rod body 19. In this case, the passage 1 communicating with the rod 19 and the hemisphere 18
2 is formed, and the wax 13 is enclosed in the passage 12.

Upper structure 1 constructed as described above
An artificial restorative material formed of porcelain, hard resin, etc. is applied to the periphery of the so as to cover the entire upper structure 1,
After that, the artificial restoration material is baked to form the prosthetic crown 5. The upper structure 1 is attached to the front part of the implant 2 whose base is embedded and fixed in the alveolar bone 3 as described above.

To fix the upper structure 1 to the implant 2, for example, a screw tool or an adhesive is used.

The connecting member 10 is disposed between the pair of upper structures 1, 1 constructed as described above, and the connecting member 1
Since the spherical surface portion 0 of 0 is rotatably in contact with the curved surface 6 of the implant 2, the relative positional relationship between the implants 2 and 2 can be arbitrarily adjusted.

After the implant 2 is adjusted to a predetermined position by the connecting member 10 and connected, the connecting member 10 is heated or the like to apply the wax 13 from the passage 12 to the spherical portion 11 of the connecting member 10.
And the curved surface 6 of the implant 2 are melted and hardened so that the implant 2 and the connecting member 10 are connected to each other by the brazing agent 13.

Since the spherical surface portion 11 of the connecting member 10 and the curved surface 6 of the upper structure 1 of the implant 2 are in contact with each other over a relatively wide area, and the soldering agent 13 is filled in the contacting portion, the pair is firmly paired. The implants 2 and 2 will be connected by the connecting member 10.

If the spacing between the implants 2 is long,
The connecting member 10 as shown in FIG. 6B may be used, and the connecting member 10 may be cut to an appropriate size before use.

According to the above construction, the relative position between the pair of implants 2, 2 can be adjusted up and down, left and right. Can be freely adapted to the situation.

As shown in FIG. 7, the shape and size of the upper structure 10 can be changed appropriately.

[0024]

According to the present invention, since the upper structures of a pair of implants are connected by a connecting member and the spherical portion of the connecting member is in contact with the side surface of the implant, the relative positional relationship between the implants is arbitrarily adjusted. be able to. After the implant is adjusted to a predetermined position with the connecting member and connected, the wax is melted out of the passage between the spherical portion of the connecting member and the side surface of the implant, so that the implant and the connecting member are mutually waxed. Will be connected at.

Therefore, the upper structure having a shape standardized to a predetermined size can be used to freely adapt to the condition of the patient's mouth. Therefore, even if the upper structure is standardized and manufactured, the condition of the mouth of the patient can be dealt with without any trouble, so that the upper structure can be mass-produced in the factory and the denture can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing a connection structure according to an embodiment of the present invention.

FIG. 2 is a perspective view of relevant parts showing a state in which an upper structure is attached to an implant.

FIG. 3 is an exploded perspective view of FIG.

FIG. 4 is a plan view of FIG.

FIG. 5 is an exploded perspective view of an implant and a connecting member.

6A is a sectional view of a connecting member used in one embodiment of the present invention, and FIG. 6B is a sectional view of a connecting member used in another embodiment of the present invention.

FIG. 7 is a perspective view showing a connecting structure according to another embodiment of the present invention.

FIG. 8 is a diagram for explaining a conventional implant.

[Explanation of symbols]

 1 Upper Structure 2 Implant 6 Curved Surface 10 Connecting Member 11 Spherical Part 12 Passage 13 Wax

Claims (4)

[Claims] 1. A connecting structure for an upper structure to be mounted on a tip portion of an implant, the spherical structure having a spherical surface capable of contacting a side surface of the upper structure, and a wax agent in a passage opening to the spherical surface. The connecting member in which the
A spherical member of the connecting member is disposed between the pair of upper structures and a side surface of the upper structure is in contact with the upper structure, and the upper structure and the connecting member are connected to the contact portion by a wax agent flowing out from the passage. The connecting structure of the superstructure attached to the implant, which is connected to. 2. The connecting structure for an upper structure according to claim 1, wherein a curved surface is formed on a side surface of the implant, and a spherical portion of the connecting member is fitted to the curved surface. . 3. The upper structure connecting structure according to claim 1, wherein the connecting member is a sphere. 4. The first connecting member according to claim 1, wherein the connecting member is formed by providing hemispheres at both ends of the rod body, and passages that open to the spherical surface portions of both the hemisphere bodies communicate with each other through the rod body. The connecting structure of the superstructure according to the item.