JPS6395049A - Dental implant - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Application The present invention provides an abutment for covering an artificial tooth crown, and the abutment i.
The present invention relates to a dental implant consisting of a leg that is implanted into the alveolar bone for support.

PRIOR ART AND PROBLEMS TO BE SOLVED BY THE INVENTION In the conventional implant for I#, a leg formed in the shape of a threaded rod made of metal or ceramics is implanted into a hole drilled in the alveolar bone. There was a method in which a cap was placed on the head of the leg exposed above and an artificial tooth crown was placed over it, but since there is only one leg, it is easy to perform the procedure, but it is vulnerable to occlusal pressure, and the artificial tooth crown is not suitable. It had the disadvantage that it was easy to sink or sway.

An object of the present invention is to provide a dental implant that distributes occlusal pressure and prevents sinking and movement of an artificial tooth crown. Another object of the present invention is to provide a dental implant that has a simple structure, is easy to handle, can be produced in large quantities, is inexpensive to manufacture, and can be easily performed. Further objects of the invention will become apparent from the following detailed description and the accompanying drawings.

Means for solving the problem, that is, the dental implant of the present invention has a screw-shaped implant for insertion into a hole 81 drilled in alveolar bone 80, as shown in FIGS. 1 to 4 and 7. The legs 11 formed in
An abutment 10 for placing one or more fixed artificial tooth crowns, which can be screwed into a screw hole 101 drilled in the abutment 10 and inserted into a hole 82 drilled in the alveolar bone 80. one or more heads having a threaded leg portion 21 for rotating the leg portion 21 and a head portion 22 convenient for rotating the leg portion 21 using a tool such as a hand wrench; When there is only one leg 11 fixed to the abutment 10, at least two of the legs 20 with heads are screwed into screw holes 101 drilled in the abutment 10, respectively. The legs 11 are inserted into the support base 10 and are fixed to the support base 10.
When there are two legs, at least one of the legs 20 with a head is screwed into a screw hole 101 bored in the abutment 10, and the leg 20 with a head is screwed into a screw hole 101 of the abutment 10. After being inserted, a part of the leg portion 21 that is no longer used and the entire head portion 22 of the leg with head 20 can be removed, and the leg 11 that is fixed to the abutment IO and the unnecessary portion can be removed. The abutment 10 having the head-equipped legs 20 from which the heads 20 are removed is constructed by implanting the stepladder-like 1 having at least eight legs and the legs 11 and 21 into the alveolar bone 80. It is stably supported by

In the present invention, the abutment 10 is provided with a screw hole 101 in advance for screwing in the leg with head 20, or a screw hole 1 in which the leg with head 20 is screwed in with a tool such as a drill.
It is made of a material that can be drilled with 01 holes. The legs 11 may be made of any material as long as it is compatible with the gums and alveolar bone tissue. The leg with head 20 can easily be attached to a part of the leg portion 21 or the head portion 2.
It is necessary for the material to be able to cut and remove all of 2 and to be compatible with the gingiva and alveolar bone tissue.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4 and 7.

This embodiment consists of one abutment 10 on which a molar tooth of an artificial tooth crown is placed, and one leg with a head 20. The abutment 10 has two screw-shaped legs 11 fixed thereto to be inserted into a hole 81 drilled in the alveolar bone 80. Further, the abutment 1O is made of a material that allows a screw hole 101 for screwing the head-equipped leg 20 to be drilled using a drill. The headed leg 20 has a hole 82 drilled in the alveolar bone 80.
a threaded leg portion 21 for insertion into the
It has a square columnar head portion 22 which is convenient for rotating the leg portion 21 using a hand wrench. Abutment 1
Each leg 11 of 0 and the leg portion 21 of the leg 20 with a head include
As shown in FIG. 8, each of the tip portions 111 and 211 is formed in a cylindrical shape, and circles Wt1112 and 212 are drilled in the bottom surface of the hole 81 drilled in the alveolar bone 80.
This is preferable in order to prevent it from sinking when inserted into 82.

Another embodiment of the invention is shown in Figures 5 and 6.

This embodiment uses one abutment 1 on which the front tooth of an artificial tooth crown is placed, in which two legs 11B are fixed and a screw hole 101B into which the headed leg 20B8 can be screwed is pre-drilled.
0B and one leg with head 20B.

The configurations of the support base 10B and the head-equipped legs 20B are the same as in the previous embodiment, so detailed explanations will be omitted.

Operation and Effect of the Invention Therefore, the leg 11 or 11] 1 [the abutment 10 or IOB
The leg with head 20 or 2 is inserted into the screw hole 101 or 101B.
After screwing in 0B, the unnecessary part of the leg portion 21 or 21B of the head-equipped leg 20 or 20B and the entire head portion 22 or 22B are removed to create the base 10 or legs 11 and 21 of IOB or IIB and 21B. , leg 11 or II
The leg 21 is inserted into the hole 81 or 81B that B drills in the alveolar bone 80.
Or 21B is inserted and implanted into the hole 82 or 82B drilled in the alveolar bone 80, respectively.
Since the abutment 10 or IOB supported by the 2S" is planted on the alveolar bone 80 like a stepladder with at least eight legs, the artificial crown placed on the abutment 10 or 1013 is not affected by the occlusal pressure. There is no fear that the objects will be dispersed and cause subsidence or oscillation.In addition, the product of the present invention usually
Since two legs 11 or IIB are provided on 0 or IOB, the leg 20 with head is screwed into the abutment 10 or 10B.
Alternatively, only one 20B is required, and moreover, it only needs to be inserted into a screw hole previously drilled in the abutment 10 or IOB, so handling is extremely simple and the application can be done quickly and easily.

Furthermore, the product of the present invention has the advantage of having a simple structure, being mass-producible, and being inexpensive to manufacture.

[Brief explanation of the drawing]

Figures 1 to 4 show embodiments of the present invention, with Figure 1 being a perspective view of the abutment, Figure 2 being a perspective view of the leg with head, and Figures 8(a) and 8) being the support. A partially enlarged straight view and an enlarged bottom view of the legs of the stand or the legs with heads, and FIG. 4 is a perspective view of the completed product. 5 and 6 show another embodiment of the invention,
Figure 5 is a perspective view of the leg with head screwed into the abutment;
FIG. 6 is a perspective view of the finished product. FIG. 7 is an explanatory diagram showing an example of the arrangement of holes drilled in the alveolar bone for inserting the legs of the abutment. 1G, IOB・・・・・・Abutment

Claims (1)

[Claims] An abutment for covering an artificial tooth crown, to which one or more screw-shaped legs are fixed, for insertion into a hole drilled in the alveolar bone, and a screw hole drilled in the abutment. for insertion into a hole drilled in the alveolar bone, which can be screwed into the alveolar bone.
one or more headed legs having a threaded leg portion and a head portion convenient for rotating the leg portion using a tool such as a hand wrench; When there is only one leg fixed to the abutment, at least two of the legs with heads are screwed into respective screw holes drilled in the abutment, and the leg fixed to the abutment is screwed into the screw holes drilled in the abutment. When there are two legs, at least one of the legs with heads is screwed into a screw hole drilled in the abutment, and after the legs with heads are screwed into the screw hole of the abutment, A part of the leg part that is no longer used and the whole head part of the leg with a head can be removed, and the abutment has the leg fixed to the abutment and the leg with the head from which the unnecessary part has been removed. . A dental implant characterized in that, like a stepladder having at least three legs, the legs are implanted into the alveolar bone so that the dental implant is stably supported on the alveolar bone.