Preparation method of environment-friendly superhydrophilic dental implant activated surface

An implant and environment-friendly technology, applied in prosthesis, medical science, tissue regeneration, etc., can solve the problems of poor surface hydrophilicity, complicated treatment process, complicated operation process, etc. Simple, bioactive effect

Active Publication Date: 2017-06-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the purpose of improving osseointegration has been achieved, composite micro-nano holes can be obtained on the surface by sand blasting and acid etching plus anodic oxidation. unfriendly
[0005] In summary, the current traditional surface treatment methods for dental implants have problems such as complicated treatment process, poor surface hydrophilicity, and high energy consumption. A durable and highly bioactive surface treatment method for dental implants to obtain a composite micro-nano pore structure on the implant surface

Method used

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  • Preparation method of environment-friendly superhydrophilic dental implant activated surface
  • Preparation method of environment-friendly superhydrophilic dental implant activated surface
  • Preparation method of environment-friendly superhydrophilic dental implant activated surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] S1. Under normal temperature and pressure conditions, a 20wt% phytic acid solution is prepared in a saturated calcium hydroxide solution;

[0027] S2. Immerse the SLA-treated dental implant surface completely in the configured mixed solution, the soaking temperature is 30℃, and the soaking time is 120min;

[0028] S3. The dental implant treated with the phytic acid solution is ultrasonically cleaned with deionized water, acetone, absolute ethanol, and deionized water for 15 minutes, and then naturally dried.

[0029] Surface element analysis: Use EDS (Energy Dispersive Spectroscopy) to analyze the composition of the SLA surface and the surface elements of the phytic acid / calcium hydroxide mixed solution after SLA treatment. SLA surface EDS map such as figure 1 As shown, the EDS spectrum of the surface of the SLA-soaked phytic acid / calcium hydroxide mixed solution is as follows figure 2 As shown, it is determined that Ca and P ions are introduced on the surface of the sample a...

Embodiment 2

[0033] S1. Under normal temperature and pressure conditions, a 20wt% phytic acid solution is prepared in a saturated calcium hydroxide solution;

[0034] S2. Immerse the SLA-treated dental implant surface completely in the configured phytic acid solution, the soaking temperature is 40℃, and the soaking time is 90min;

[0035] S3. The dental implant treated with the phytic acid solution is ultrasonically cleaned with deionized water, acetone, absolute ethanol, and deionized water for 15 minutes, and then naturally dried.

[0036] The operation steps of surface element analysis are the same as in Example 1. The EDS map of SLA surface is as follows figure 1 As shown, the EDS spectrum of the surface of the SLA-soaked phytic acid / calcium hydroxide mixed solution is as follows figure 2 As shown, it is determined that Ca and P ions are introduced on the surface of the sample after immersion in the phytic acid / calcium hydroxide mixed solution.

[0037] The operation steps of surface topograph...

Embodiment 3

[0040] S1. Under normal temperature and pressure conditions, a 20wt% phytic acid solution is prepared in a saturated calcium hydroxide solution;

[0041] S2. Immerse the SLA-treated dental implant surface completely in the configured phytic acid solution, the soaking temperature is 50℃, and the soaking time is 80min;

[0042] S3. The dental implant treated with the phytic acid solution is ultrasonically cleaned with deionized water, acetone, absolute ethanol, and deionized water for 15 minutes, and then naturally dried.

[0043] The operation steps of surface element analysis are the same as in Example 1. The EDS map of SLA surface is as follows figure 1 As shown, the EDS spectrum of the surface of the SLA-soaked phytic acid / calcium hydroxide mixed solution is as follows figure 2 As shown, it is determined that Ca and P ions are introduced on the surface of the sample after immersion in the phytic acid / calcium hydroxide mixed solution.

[0044] The operation steps of surface topograph...

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Abstract

The invention discloses a preparation method of environment-friendly superhydrophilic dental implant activated surface. The method comprises the following steps: soaking a dental implant after the large-particle sandblast and acid-etching (SLA) treatment in a phytic acid / calcium hydroxide mixed solution to obtain the environment-friendly superhydrophilic dental implant activated surface. The dental implant activated surface prepared by the method has the advantages that the surface appearance is an irregular micro-nano composite three-dimensional porous structure, so that the surface biological activity of the dental implant is improved, and the bone combination capacity is also improved; by introducing Ca and P ions, the multiplication, adhesion and differentiation of the bone cells can be significantly facilitated; and the surface has the superhydrophilicity, and the superhydrophilic surface facilitates the improvement of biological compatibility of the dental implant surface, shortens the osseointegration period and improves the bone combination capacity. The preparation method has the advantages of convenience in technological operation, simple solution components, low cost and the like and is environment-friendly, safe and efficient preparation method of the dental implant activated surface.

Description

Technical field [0001] The invention relates to the technical field of biomedical materials, in particular to a method for preparing an environment-friendly super-hydrophilic dental implant activated surface. Background technique [0002] Titanium and titanium alloys have good biocompatibility and excellent heat resistance and corrosion resistance, and are the most widely used implant metal materials. However, titanium-based implants without surface biological activation treatment have low biological activity and a long reaction cycle in the organism. They are usually regarded as biologically inert materials, so surface activation modification is required. There are two main ideas for surface modification. One is to apply a biologically active coating on the titanium surface, and the other is to convert the passive oxide film on the titanium surface into a biologically active active oxide film or other active film layers. In 1974, Dr. Tuzhumann of the University of Bonn, Switzer...

Claims

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Application Information

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IPC IPC(8): A61L27/50A61L27/02A61L27/00
CPCA61L27/00A61L27/025A61L27/50A61L2430/12
Inventor 汪涛钱海梅汤春波张嘉敏缪润杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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