Four-section dental implant

Abstract

The invention discloses a four-section dental implant. The four-section dental implant comprises a bone graft part, a connecting part, an abutment part and a penetrating gingival part, wherein the four-section structure is connected by threads, so that the processing precision can be improved, and the design can facilitate the removal and replacement of only damaged parts when the dental implant is damaged, thereby reducing the replacement cost. In the invention, the degree of freedom is limited by the way that the limiting groove and the limiting protrusion are matched, so as to fix the connecting part of the dental implant, so that the connecting strength of the connecting part and the bone graft part can be effectively ensured.

Description

technical field [0001] The invention belongs to the technical field of oral medicine, in particular to an oral dental implant. Background technique [0002] Most of the existing dental implants are made of pure titanium or titanium alloy, and most of them have a two-stage structure, which is integratedly manufactured by machining. After the advent of Selective Laser Melting (SLM), a method for 3D printing to manufacture dental implants was proposed. The advantages of 3D printing can meet the requirements of personalized design and manufacture of dental implants, but 3D printing has the disadvantage of low processing accuracy. At the same time, 3D printing needs to support the suspended parts, but the supported parts will also result in poor mechanical properties. [0003] The existing machining methods for manufacturing dental implants cannot individualize complex structures. Insufficient precision of 3D printing makes it difficult to fit the thread. At the same time, bec...

AI Technical Summary

Problems solved by technology

The advantages of 3D printing can meet the requirements of personalized design and manufacture of dental implants, but 3D printing has the disadvantage of low processing accuracy

At the same time, 3D printing needs to support the suspended part, but the support part will also result in poor mechanical properties.

[0003] Existing machining methods for manufacturing dental implants cannot individualize complex structures

Insufficient precision of 3D printing makes it difficult to fit the thread. At the same time, because the thread is a suspended part and cannot be properly supported, the mechanical properties of the thread of the processed workpiece are poor.

Therefore, there is the technology of re-machining after 3D printing. However, due to the low precision of 3D printing technology, it is difficult to be clamped by the fixture during machining, and it is difficult to find the coordinate reference point for machining, resulting in a waste of time and cost.

The connecting part of the central screw of the dental implant with traditional structural design is prone to mechanical damage, which needs to be pulled out violently and re-planted, causing great damage to the patient

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