Central screw of dental implant and fracture repairing device thereof

Abstract

The invention discloses a central screw, which can be used for an implant denture and comprises a screw head and a screw rod, a first countersunk hole is formed in the upper end of the screw head, anda first through hole is formed in the screw rod. The screw head is composed of an upper cylinder part and a lower circle table part, and the first countersunk hole is formed in the upper cylinder part. The screw rod is round, and the outer wall of the lower part of the screw rod is provided with a first thread. The cross section of the first through hole is in a multilateral shape, elliptic shapeor special shape. The invention also discloses an implant denture and a fracture repairing device. The implant denture comprises a dental implant and a base plate, the base plate is connected to thedental implant through a central screw. The fracture repairing device comprises a handle and a rotating rod, the repairing device is used for taking out a fractured central screw, the invention also discloses a fracture repairing method of the central screw. The implant denture has a simple structure, is convenient in later maintenance and replacement, and has high creativity.

Description

technical field [0001] The invention relates to the technical field of denture implantation, in particular to a central screw of a dental implant and a fracture repair device thereof. Background technique [0002] Implant dentures, as a new type of dental restoration technology developed in recent years, are popular among clinicians and patients because of their comfort and beauty. Implant denture restoration is complicated, and its clinical effect is affected by multiple factors. The fracture of the central screw of the implant is a relatively common complication of implant denture. In the past, there were reports on the removal of the central screw of the implant after it was broken, including the use of a dental probe to unscrew after incision of the gingiva, the use of ultrasonic root canal expansion instruments to assist removal, and the removal of the implant with a slow machine and a ball drill, although all of them have certain effects , but some operations are comp...

AI Technical Summary

Problems solved by technology

Implant denture restoration work is complicated, and its clinical effect is affected by multiple factors. The fracture of the central screw of the implant is a relatively common complication of implant dentures

In the past, there were reports about the removal of the central screw of the implant after it was broken, including the use of a dental probe to unscrew after incision of the gingiva, the use of ultrasonic root canal expansion instruments to assist removal, and the removal of the implant with a slow machine and a ball drill, although all of them have certain effects , but some operations are complicated and the effect is uncertain, and some have relatively large trauma to the implant, alveolar bone, and gums, causing great pain to the patient

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