Dental implant

Abstract

The present invention relates to a dental implant, and more particularly, to a dental implant in which a fixture and an abutment are together by a separate screw post so as to prevent the breakage of an implant screw tightening part and uniformly transmit forces over the entirety of a contact surface, to thereby prevent stresses from being partially concentrated, and in which the screw-tightening direction between the fixture and the abutment is variable so as to improve the coupling force between the fixture and the abutment and fundamentally prevent a screw from becoming loosened. The dental implant of the present invention comprises said fixture and abutment, the abutment including a lower abutment to be fitted onto the fixture, and an upper abutment connected to an upper portion of the lower abutment, the lower abutment and the upper abutment being separate from each other. The upper abutment and the fixture are coupled and fixed by the screw post.

Description

technical field [0001] The present invention relates to a dental implant, in particular to a method of combining a retaining screw and an abutment by using a separate screw column, thereby preventing the screw joint of the implant from being broken, and at the same time transmitting force uniformly to the entire contact surface, preventing stress on the part The phenomenon of concentration, moreover, make the direction of the screw combination between the retaining nail and the abutment reverse, improve the bonding force between the retaining nail and the abutment, and fundamentally solve the problem of the dental implant with the screw untwisted. Background technique [0002] Generally speaking, an implant refers to an artificial substitute that can reproduce the same shape and function as a natural tooth, and its structure is as follows: figure 1 As shown, it includes: a titanium fixture (fixture) 10, the outer peripheral surface of which forms a thread 11 to be set on the...

AI Technical Summary

Problems solved by technology

[0006] The feature of the above structure is to provide a supply channel that can supply human growth factors in the bone structure around the root of the tooth, but its structure is complex, the bonding force between the crown 50 and the root 3 is weak, and there is a gap between the middle column 18 of the abutment. There is a risk of the screw combination of the crown 50 and the root 3 being unraveled

[0007] However, in the above-mentioned structure, the screw portion 5 is integrally formed on the upper setting platform 2, and there is still a risk of breaking the upper setting platform 2 formed with the screw portion 5. Moreover, when the upper setting platform 2 is broken, it is difficult to remove the broken screw portion 5.

[0008] In addition, the above-mentioned screw part 5 is screwed only on the inner side of the artificial tooth fixture 11, so the bonding force between the artificial tooth fixture 11 and the upper setting platform 2 and the lower setting platform 6 is weak due to the small surface area of ​​the screwed part. There is a risk that the screw joint may be unraveled

[0009] In addition, since the structure of the prior art described above is a structure in which the crown 50 is connected to the root 3 as a whole when there is no surface in contact with the gingival part of the abutment, it is only possible to In addition, there is also the problem that a large amount of plaque and tartar are easily deposited on the gum line 62

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