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Expanding type tooth implantation device based on differential thread transmission

A differential thread, expansion technology, applied in dentistry, dental implants, dental prosthetics, etc., can solve problems such as increasing the risk of implant failure, micro-leakage of adhesives, etc., to reduce bacterial invasive infection, reduce bone Tissue damage and stability-enhancing effects

Pending Publication Date: 2019-07-19
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The abutment and the artificial crown are retained by the adhesive, which is prone to micro-leakage of the adhesive, causing bacterial colonization, which in turn causes periarthritis, and increases the risk of implant failure

Method used

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  • Expanding type tooth implantation device based on differential thread transmission
  • Expanding type tooth implantation device based on differential thread transmission
  • Expanding type tooth implantation device based on differential thread transmission

Examples

Experimental program
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Embodiment Construction

[0032] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0033] like figure 1 and figure 2 As shown, an expandable dental implant device based on differential screw transmission includes an implant 2, a threaded abutment screw 1, and a conical expansion body 3, such as image 3 As shown, the outer surface of the abutment screw 1 is provided with a large-lead transmission thread 11 and a small-lead transmission thread 12, and the large-lead transmission thread 11 and the small-lead transmission thread 12 are right-handed threads. , the length of the abutment screw 1 is 10-12mm, and a hexagonal groove is arranged inside it, through which the hexagonal groove is convenient for installation and disassembly. The abutment screw 1 is arranged in the implant body 2 and screwed to the implant body 2 through a large-lead transmission thread 11 .

[0034] like Figure 4 and 5As shown, the shape of the implan...

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Abstract

The invention provides an expanding type tooth implantation device based on differential thread transmission. The expanding type tooth implantation device comprises an implant, a drill base screw rodand a conical expanding body, wherein large-lead transmission threads and small-lead transmission threads are formed in the outer side surface of the drill base screw rod; the drill base screw rod isarranged in the implant; a plurality of expanding grooves are formed in the bottom to the neck of the implant, and communicate with an expanding hole formed in the implant; bosses are arranged on theouter side wall of the expanding body; and the expanding body is mounted in the expanding hole of the implant through the small-lead transmission threads. According to the expanding type tooth implantation device disclosed by the invention, the expanding body and the double-threaded drill base screw rod are structurally formed into differential spiral transmission, so that when the screw rod is twisted inwards, the expanding body is wedged inwards, and moves inwards for a distance of lead difference to expand the implant, so that the expanding force of the implant can be accurately controlledto realize the expected planting effect; and the transmission principle of differential threads is utilized to accurately and fine adjust the position of the expanding body, so that the expanding force can be accurately controlled, and the stabilization of tooth implantation is improved.

Description

technical field [0001] The invention relates to the technical field of dental implants, in particular to an expandable dental implant device based on differential screw drive. Background technique [0002] Implant restorations are a common dental restoration technique that has improved the quality of life of countless edentulous patients. Usually, dental implants, also known as "artificial tooth roots", are made of titanium or titanium alloys and other biocompatible materials, and are implanted in the patient's edentulous jawbone to replace the natural tooth roots and provide stable support. upper crown. However, the traditional porcelain restoration technology may require the adjacent teeth to be moved, which is a destructive restoration. Therefore, the durability and stability of implant restorations are far greater than those of porcelain restorations. [0003] For implant restoration in the anterior tooth area, after the dental implant body is installed, a zirconia abu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C8/00
CPCA61C8/0033A61C8/0042
Inventor 毛志红刘帆
Owner WUYI UNIV
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