Screw thread planting body

An implant and thread-like technology, which is applied in the fields of dental implants, medical science, orthodontics, etc., can solve problems such as long healing time, achieve excellent stability, avoid loosening, and increase the effect of contact area

Inactive Publication Date: 2009-02-04
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Oral implantology involves comprehensive disciplines such as medicine, electronics, machinery, materials, and mechanics. Implant dentures are an interdisciplinary medical technology. Implant dentures

Method used

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  • Screw thread planting body
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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 As shown, the present invention includes a cylindrical implant 1, which is made of pure titanium material. The top edge of the implant 1 is provided with a 45° chamfer 2, and the upper part of the implant 1 is provided with a threaded tooth shape that is an isosceles trapezoid The fine external thread 3 can increase the contact area between the implant 1 and the bone tissue, so as to facilitate the integration with the cortical bone tissue. The bottom of implant body 1 is provided with external thread 4, and the tooth shape of external thread 4 is not isosceles trapezoidal, and thread depth gradually becomes shallower from bottom to top (such as figure 2 shown), this external profile has the function of lateral bone compression, which is conducive to the transfer of stress to the inside of bone tissue. The thread grooves 5 o...

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Abstract

The invention relates to a thread implant which is characterized in that the thread implant comprises a cylindrical implant; the edge of the top of the implant is provided with smooth chamfers; the upper part of the implant is provided with a fine external thread with the thread tooth profile of isosceles trapezoid; the lower part of the implant is provided with an external thread with the thread tooth profile of trapezoid; the thread depth of the trapezoid external thread is gradually shoaled from bottom to top; the bottom of the implant is a spherical surface; the lower part of the trapezoid external thread of the implant is uniformly provided with three vertical cutting trough; the center of the top of the implant is provided with a truncated cone hole below which a regular octagonal hole is arranged; an internal thread blind hole is arranged below the regular octagonal hole. The thread implant is provided with excellent initial stability effect, is beneficial for the long-term stability of the implant, has high implant structure safety coefficient, is beneficial for the combination of gum and implant, can effectively restrict the adsorption of bacilli, and can be widely applied to various restoration process of denture implant due to tooth loss.

Description

technical field [0001] The invention relates to an oral medical instrument, in particular to a screw-shaped implant used for oral artificial implant dentures. Background technique [0002] Oral implantology involves comprehensive disciplines such as medicine, electronics, machinery, materials, and mechanics. Implant dentures are an interdisciplinary medical technology. Implant dentures are widely used in the restoration of missing teeth. Dental implants can restore the function of missing teeth to the greatest extent. , but a major disadvantage of implant dentures is the long healing time. A large number of experimental studies have shown that maintaining a certain contact pressure between the implant and bone tissue can effectively accelerate osseointegration, enhance the initial stability and the speed of bone tissue healing. Therefore, expect the emergence of an implant that always maintains a certain pressure on the bone tissue during the process of screwing into the al...

Claims

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Application Information

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IPC IPC(8): A61C8/00
Inventor 张恩维魏世成郑玉峰方竞熊晓玲成艳
Owner PEKING UNIV
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