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Preparation method of titanium dental implant

A dental implant and implant technology, applied in dentistry, dental implants, dental restorations, etc., can solve the problems of limited ability to induce bone, too long implant growth time, complicated processing technology, etc., to promote proliferation and differentiation , increase the surface area, the effect of simple process

Inactive Publication Date: 2010-07-14
沈阳天贺新材料开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its treatment process is relatively complicated, the operation is inconvenient, the ability to induce bone is limited, and the growth time of implants is too long.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] First design the dental implant to a threaded shape, increase the initial contact surface of the implant, improve the initial stability of the implant, increase the surface area of ​​the implant, and improve the stress distribution at the bone interface;

[0021] Then use sandblasting method to obtain rough surface;

[0022] Then use the laser etching method to obtain a porous structure on the surface of the implant, with a pore size of 50±2μm;

[0023] Then use anodizing method to prepare porous TiO on the surface of the implant 2 Oxide film, TiO 2 The surface of the oxide film is relatively rough, and there are several circular pits of different sizes in the local area. The TiO is observed under a high-power electron microscope. 2 The oxide film has a three-dimensional spherical pore microstructure, the pore distribution is relatively uniform, the pore size distribution is between 140-160nm, and the technical condition of anodization is 1-3M H 2 SO 4 Perform electrochemical t...

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Abstract

The invention discloses a preparation method of a titanium dental implant, which includes the following steps: arranging the dental implant to be in spiral shape, increasing the initial contact area of the implant, improving the initial stability of the implant, increasing the surface area of the implant and improving the stress distribution at the bone interface; obtaining a rough surface through abrasive blasting; designing a porous structure on the surface of the implant through a laser etching method; preparing a porous TiO2 oxide film on the surface of the implant through an anodic oxidation method, wherein the oxide film has a rough surface and has round pits in different sizes at local parts; treating the anodized titanium surface through alkali liquor to form a titanium gel layer rich in Ti-OH groups which induce the production of calcium phosphate crystal nucleus to form an osteoid apatite layer. The invention processes the medical pure titanium to be in spiral shape and modifies the surface of the implant through a series of methods of abrasive blasting, laser etching and anodic oxidation so as to enhance the bonding strength of the implant and the bone and to improve the success rate of the repair of the implant.

Description

Technical field [0001] The invention relates to a method for preparing a biomedical metal implant material, in particular to a method for preparing a new type of titanium dental implant, and belongs to the technical field of A61C8 / 00 (2006.01) I in the International Patent Classification Table. Background technique [0002] Metal dental implants are widely used for implants after tooth loss. The key to the success of dental implant surgery is whether the gum bone can quickly grow to the surface of the implant and be firmly integrated with the surface after the implant is placed in the gum. [0003] The original planting materials used were Co-Cr alloy, corundum alumina, single crystal alumina, etc. However, the biocompatibility of Co-Cr alloy is insufficient and corrosive. The mechanical properties of corundum alumina cannot meet the requirements, and it is easy to be brittle. Since the late last century, titanium and alloys, which are known as biometals, have gradually become a m...

Claims

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Application Information

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IPC IPC(8): A61C8/00
Inventor 杨立波高淑春徐国强胡金玲焦军
Owner 沈阳天贺新材料开发有限公司
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