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A preparation method of implant surface with multi-scale porous complex structure

A complex structure and implant technology, applied in the field of medical material manufacturing, can solve the problems of unsatisfactory implantation failure and other problems, and achieve the effect of shortening the course of implant repair, high osteogenic activity, and expanding the indications of oral implantation.

Active Publication Date: 2017-01-04
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Up to now, implant surgery has achieved great success in oral clinical practice, but the unsatisfactory implant effect or even implant failure caused by insufficient osseointegration and bacterial infection is still a problem that plagues clinical implantology.

Method used

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  • A preparation method of implant surface with multi-scale porous complex structure
  • A preparation method of implant surface with multi-scale porous complex structure
  • A preparation method of implant surface with multi-scale porous complex structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The implants with a smooth surface were sprayed evenly with 40-60 mesh emery under a pressure of 5 bar for 1 minute, and the sprayed implants were ultrasonically cleaned with acetone, ethanol and pure water for 15 minutes, and dried with nitrogen. Obtain large fluctuations of tens to tens of microns.

[0022] The dried implants were placed in the oxalic acid solution of 60g oxalic acid / 100ml water, in a boiling water bath for 60 minutes, and quickly washed with boiling distilled water, and micron pits were acid-etched on the tens of micron fluctuations obtained by sandblasting. On the side wall and the bottom wall of the micron-scale junction, a pit structure with a smaller scale of micron-scale and sub-micron-scale is further formed by acid etching. Oxalic acid treatment enhances the three-dimensional sense of the surface and greatly increases the surface area.

[0023] The implants treated with oxalic acid were treated with 1% NaOH at 80°C for 5 min, rinsed with a la...

Embodiment 2

[0025] The implants with a smooth surface were sprayed evenly with 40-60 mesh emery under a pressure of 5 bar for 1 minute, and the sprayed implants were ultrasonically cleaned with acetone, ethanol and pure water for 15 minutes, and dried with nitrogen. Obtain large fluctuations of tens to tens of microns.

[0026] The dried implants were placed in the oxalic acid solution of 60g oxalic acid / 100ml water, in a boiling water bath for 60 minutes, and quickly washed with boiling distilled water, and micron pits were acid-etched on the tens of micron fluctuations obtained by sandblasting. On the side wall and the bottom wall of the micron-scale junction, a pit structure with a smaller scale of micron-scale and sub-micron-scale is further formed by acid etching. Oxalic acid treatment enhances the three-dimensional sense of the surface and greatly increases the surface area.

[0027] The implants treated with oxalic acid were treated with 1% NaOH at 80°C for 10 min, rinsed with a l...

Embodiment 3

[0029] The implants with a smooth surface were sprayed evenly with 40-60 mesh emery under a pressure of 5 bar for 1 minute, and the sprayed implants were ultrasonically cleaned with acetone, ethanol and pure water for 15 minutes, and dried with nitrogen. Obtain large fluctuations of tens to tens of microns.

[0030] The dried implants were placed in the oxalic acid solution of 60g oxalic acid / 100ml water, in a boiling water bath for 60 minutes, and quickly washed with boiling distilled water, and micron pits were acid-etched on the tens of micron fluctuations obtained by sandblasting. On the side wall and the bottom wall of the micron-scale junction, a pit structure with a smaller scale of micron-scale and sub-micron-scale is further formed by acid etching. Oxalic acid treatment enhances the three-dimensional sense of the surface and greatly increases the surface area.

[0031] The implants treated with oxalic acid were treated with 1% NaOH at 80°C for 20 min, rinsed with a l...

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Abstract

The invention provides a method for preparing the surface of an implant with a multi-scale porous complex structure, which is a method for preparing the surface of a titanium-based implant with antibacterial and osteogenic functions. Treated by the method to simulate the morphology environment of new bone formation in the body under physiological conditions, this surface can not only accelerate the osseointegration of the implant surface and contribute to the long-term stability of the implant, but also has significant antibacterial properties, which can inhibit the infection at the initial stage of implantation , can further improve the success rate of planting. The present invention creates a micro-nano composite pure titanium implant surface with both osteogenic and antibacterial properties. It has a three-dimensional multi-scale complex structure implant surface, and the surface has a higher osteogenesis than SLA, which is the most widely used clinically. Activity and excellent antibacterial performance, has a wide range of application prospects. It is of great significance for expanding the indications for oral implants, shortening the course of implant restoration, reducing implant-related infections, and improving the success rate of implants.

Description

technical field [0001] The invention belongs to the technical field of medical material manufacturing, and relates to a method for preparing a dental implant surface with multi-scale porous complex structure and antibacterial and antibacterial functions. [0002] technical background [0003] Since Branemark put forward the theory of osseointegration in the 1980s, the theory of osseointegration has been widely accepted by domestic and foreign scholars and applied in clinical practice. The formation of osseointegration (osseointegration) between the implant and the surrounding bone tissue is the key to the success of the implant. Implant surface properties play an important role in affecting the morphology and behavior of cells around the implant, and are one of the key factors determining the speed and degree of osseointegration. In recent years, on the basis of related studies on osseointegration theory, scholars have proposed the idea that after implantation of rough surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F17/00C23F1/26C23F1/38C22F1/18A61L27/06A61L27/56
Inventor 李晓东罗巧洁查光玉
Owner ZHEJIANG UNIV
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