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Method of preparing TiSrO3 coating on surface of titanium implant

A titanium implant and coating technology, applied in the field of bioactive artificial tooth root implants, can solve the problem that the material does not have the function of promoting or inducing osteogenesis, and achieves the effect of easy operation and improved specific surface area

Active Publication Date: 2014-09-10
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some unresolved technical problems in the above-mentioned implants, mainly because the material itself does not have the function of promoting or inducing osteogenesis. After the material is implanted into the bone, it takes a long time to form an osseointegration with the bone tissue.

Method used

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  • Method of preparing TiSrO3 coating on surface of titanium implant
  • Method of preparing TiSrO3 coating on surface of titanium implant
  • Method of preparing TiSrO3 coating on surface of titanium implant

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A preparation of TiSrO on the surface of titanium implant 3 The coating method is characterized in that it comprises the following steps:

[0027] (1) Titanium implant pretreatment: The surface of the titanium implant was sandblasted with emery, the pressure was 4 bar, and then placed in acetone, ethanol with a volume percentage of 75%, and distilled water for ultrasonic cleaning, and dried; 2.75M HF and 3.94M HNO 3 The mixed aqueous solution was treated for 2min, rinsed with double distilled water, and dried; then with 18wt% HCl and 48wt%H 2 SO 4 The mixed aqueous solution was treated at 80°C for 30 minutes, rinsed with double distilled water, and dried;

[0028] (2) Preparation of hydrothermal solution:

[0029] Sr(OH) 2 Solution preparation: distilled water as solvent, Sr(OH) 2 ·8H 2 O is the solute, prepare 0.02MSr(OH) 2 solution;

[0030] (3) Put the titanium implant pretreated in step 1 into a hydrothermal reaction kettle containing the Sr(OH) prepared in...

Embodiment 2

[0033] A preparation of TiSrO on the surface of titanium implant 3 The coating method is characterized in that it comprises the following steps:

[0034] (1) Titanium implant pretreatment: The surface of the titanium implant was sandblasted with emery, the pressure was 4 bar, and then placed in acetone, ethanol with a volume percentage of 75%, and distilled water for ultrasonic cleaning, and dried; with 2.75M HF and 3.94M HNO 3 The mixed aqueous solution was treated for 2min, rinsed with double distilled water, and dried; then with 18wt% HCl and 48wt%H 2 SO 4 The mixed aqueous solution was treated at 80°C for 30 minutes, rinsed with double distilled water, and dried;

[0035] (2) Preparation of hydrothermal solution:

[0036] SrCl 2 Solution preparation: distilled water as solvent, CaCl 2 , (NH 4 ) 2 h 2 PO4 , SrCl 2 ·6H 2 O is the solute, where CaCl 2 The concentration is 3.6×10 ?4 M, SrCl 2 ·6H 2 The concentration of O is 1.9×10 ?5 M, CaCl 2 and SrCl 2 ·6H...

Embodiment 3

[0040] A preparation of TiSrO on the surface of titanium implant 3 The coating method is characterized in that it comprises the following steps:

[0041] (1) Titanium implant pretreatment: The surface of the titanium implant was sandblasted with emery, the pressure was 4 bar, and then placed in acetone, ethanol with a volume percentage of 75%, and distilled water for ultrasonic cleaning, and dried; 2.75M HF and 3.94M HNO 3 The mixed aqueous solution was treated for 2min, rinsed with double distilled water, and dried; then with 18wt% HCl and 48wt%H 2 SO 4 The mixed aqueous solution was treated at 80°C for 30 minutes, rinsed with double distilled water, and dried;

[0042] (2) Preparation of hydrothermal solution:

[0043] Sr(OH) 2 Solution preparation: distilled water as solvent, Sr(OH) 2 ·8H 2 O is the solute, prepare 0.03M Sr(OH) 2 solution;

[0044] (3) Put the titanium implant pretreated in step 1 into a hydrothermal reaction kettle containing the Sr(OH) prepared i...

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Abstract

The invention discloses a method of preparing TiSrO3 coating on the surface of a titanium implant. The method comprises the following steps: after carrying out sand blasting and double acid treatment on a pure titanium implant, putting the titanium implant in a hydrothermal solution containing strontium ions for hydrothermal treatment and surface modification; and forming a nanoscale protruding structure with multiple holes on the surface of the implant, wherein the protruding layer on the surface is a strontium titanate crystal structure and an anatase crystal structure and has the effects of promoting osteoblast and osteogenic differentiation of stem cells. Meanwhile, the coating has good wettability and has a wide application value.

Description

technical field [0001] The invention relates to a bioactive artificial tooth root implant, in particular to a preparation of TiSrO on the surface of a titanium implant 3 Coating method. Background technique [0002] For the surface structure of implants, people have made many attempts, such as smooth surface machined, rough surface sprayed with hydroxyapatite, rough surface sprayed with titanium slurry, etc., after long-term follow-up research. It has been generally accepted that implants with a rough surface and a threaded structure are more conducive to osseointegration, and the rough surface formed by sandblasting and acid etching has more advantages, which is more conducive to guiding osteoblast chemotaxis than the rough surface formed by spraying. Accelerates osseointegration. [0003] The surface of the Branemark implant and Replace? implant produced by Sweden Norbel-pharma company adopts TiUnite? surface (porous titanium oxide structure) or hydroxyapatite coating (b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/05
Inventor 何福明陈赟陈肖依
Owner ZHEJIANG UNIV
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