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Treatment process for improving surface hydrophilicity of implant

A treatment process and implant technology, applied in the direction of metal material coating process, prosthesis, manufacturing tools, etc., can solve the problems of poor hydrophilicity and stability, and achieve the promotion of adsorption, osseointegration, and morphology uniformity. good effect

Active Publication Date: 2019-05-10
JIANGSU TRAUSIM MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In order to solve the defects of poor hydrophilicity and stability of the implant existing in the prior art, the object of the present invention is to provide a treatment process for improving the hydrophilicity of the implant surface, that is, to perform SLA treatment on the surface of the implant After that, followed by alkali heat treatment and plasma oxidation treatment, and finally soaked in MgCl with a certain pH value 2 , CaCl 2 In the mixed solution with NaCl, the hydrophilicity is maintained

Method used

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  • Treatment process for improving surface hydrophilicity of implant
  • Treatment process for improving surface hydrophilicity of implant
  • Treatment process for improving surface hydrophilicity of implant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] In this example, the steps of processing the hydrophilic TA4 dental implant are:

[0049] A. After the TA4 dental implant is finely ground, use Micro90 ultrasonic cleaning for 25 minutes, rinse with tap water for 2 minutes, and wash with purified water for 20 minutes to clean and remove oil, and then dry it.

[0050] B. Sandblast the surface of the dental implant with 30 mesh white corundum particles for 10 seconds, the sandblasting pressure is 0.3MPa, and the spray distance is 10cm, until the surface forms a uniform gray, so that the surface of the dental implant forms a three-dimensional porous structure, the first grade The pit diameter is between 20 and 60 μm. Perform Micro90 ultrasonic cleaning for 15 minutes in sequence, rinse with tap water, ultrasonically clean with purified water, and dry.

[0051] C. Acid Etching Treatment: Place the sandblasted dental implant in 60wt% H 2 SO 4 , 18wt% HCl and pure water mixed acid solution, in which 60wt% H 2 SO 4 , 10wt...

Embodiment 2

[0065] In this example, the steps of processing the hydrophilic TA4 dental implant are:

[0066] A. After the TA4 dental implant is finely ground, use Micro90 ultrasonic cleaning for 20 minutes, rinse with tap water for 5 minutes, and wash with purified water for 10 minutes to clean and remove oil, and then dry it.

[0067]B. Sandblast the surface of the dental implant with 50 mesh white corundum particles for 5 seconds, the sandblasting pressure is 0.2MPa, and the spray distance is 5cm, until the surface forms a uniform gray color, so that a three-dimensional porous structure is formed on the surface of the dental implant. The pit diameter is between 20 and 60 μm. Perform Micro90 ultrasonic cleaning for 15 minutes in sequence, rinse with tap water, ultrasonically clean with purified water, and dry.

[0068] C. Acid Etching Treatment: Place the sandblasted dental implant in 98wt% H 2 SO 4 , 36wt% HCl and pure water mixed acid solution, in which 98wt% H 2 SO 4 , 36wt% HCl ...

Embodiment 3

[0074] In this example, the steps of processing the hydrophilic TC4 dental implant are:

[0075] A. After the TC4 dental implant is finely ground, use Micro90 ultrasonic cleaning for 50 minutes, rinse with tap water for 1 minute, and wash with purified water for 40 minutes to clean and remove oil, and then dry it.

[0076] B. Use 100-mesh white corundum particles to sandblast the surface of the dental implant for 60 seconds, the sandblasting pressure is 0.6MPa, and the spray distance is 15cm, until the surface forms a uniform gray, so that the surface of the dental implant forms a three-dimensional porous structure, the first grade The pit diameter is between 20 and 60 μm. Perform Micro90 ultrasonic cleaning for 15 minutes in sequence, rinse with tap water, ultrasonically clean with purified water, and dry.

[0077] C. Acid Etching Treatment: Place the sandblasted dental implant in 49wt%H 2 SO 4 , 18wt% HCl and pure water mixed acid solution, in which 49wt% H 2 SO 4 , 18w...

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Abstract

The invention belongs to the technical field of implants and particularly relates to a treatment process for improving the surface hydrophilicity of an implant. The method comprises the following steps: firstly carrying out sand blasting and acid etching treatment on an implant, then carrying out alkali heat treatment and plasma oxidation treatment to enable secondary pits in the surface of the implant to be more uniform and compact, finally directly immersing the implant subjected to the plasma oxidation treatment into a mixed solution of MgCl2, CaCl2 and NaCl with an adjusted pH value, and carrying out hydrophilic treatment to obtain the implant with better hydrophilicity. The surface of the implant prepared by the method not only can improve the mechanical gomphosis of the implant and surrounding bone tissues, promote the adsorption effect of bioactive molecules and cells, facilitate the adhesion and proliferation of the cells, but also improve the surface energy and the wettabilityof the cells, accelerate the initial bone bonding speed of the implant and achieve rapid bone integration. The process is simple and suitable for commercial production.

Description

technical field [0001] The invention belongs to the technical field of implants, and in particular relates to a treatment process capable of improving the hydrophilicity of the implant surface. Background technique [0002] Titanium alloy materials are more and more widely used in the field of organ defect repair due to their excellent biocompatibility and excellent mechanical properties. Titanium-based biomaterials, mainly pure titanium or titanium alloys, have become the preferred materials for oral implants. However, from the perspective of clinical needs, there are still problems such as the need to improve the biological activity of the material, and improve the efficiency and effect of the combination of the material and bone tissue. Factors affecting osseointegration mainly include implant material, shape, surface morphology, chemical properties, loading conditions, shell operation, and individual differences in patients. In order to improve the initiative of implant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/06A61L27/30A61L27/56B24C1/08B24C7/00C23C8/36C23F1/26
Inventor 钱晓锦曹云鹏徐骏伟
Owner JIANGSU TRAUSIM MEDICAL INSTR
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