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Surface treatment method of implants

A surface treatment and implant technology, applied in the field of denture manufacturing, can solve the problems of uneven holes, great harm to human body and environment, and inexhaustible removal of white corundum.

Active Publication Date: 2019-07-26
CHENGDU BESMILE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, white corundum cannot be completely removed by many implant manufacturers. German ICX even uses highly corrosive hydrofluoric acid to assist in the removal of residual aluminum, which is harmful to the human body and the environment, and the holes formed are not large. uniform

Method used

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  • Surface treatment method of implants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: Only use sandblasting + acid etching surface treatment

[0042] 1. The material of the implant used in this example is medical pure titanium, purchased from Suzhou Chuan Metallocene Materials Co., Ltd. The surface treatment of 18 groups of implants was carried out according to the method of step 1 above. Among them, the specific treatment methods of each group are shown in Table 1. Wherein, the balance of acid etching potion is water.

[0043] Table 1 Comparison table of treatment methods in each group

[0044] group Mesh of white corundum Sandblasting parameters Acid Potion Acid Etching Parameters group 1 150 mesh 0.3MPa, 60s, 4cm, 10° 35% sulfuric acid, 20% hydrochloric acid 75℃, 30min group 2 60 mesh 0.3MPa, 60s, 4cm, 10° 35% sulfuric acid, 20% hydrochloric acid 75℃, 30min group 3 100 mesh 0.3MPa, 60s, 4cm, 10° 35% sulfuric acid, 20% hydrochloric acid 75℃, 30min group 4 200 mesh 0.3MPa, 60...

Embodiment 2

[0048] Embodiment 2: after sandblasting+acid etching treatment, carry out MAO treatment

[0049] 1. Select the implants obtained in Group 1 of Example 1, and perform 10 groups of MAO treatments according to the method of Step 2 above. The treatment methods of each group are shown in Table 3.

[0050] Table 3 Comparison table of treatment methods in each group

[0051]

[0052]

[0053] 2. Taking the implants of Group 1 that were not carried out in Example 2 as the control group, the film thickness and stability of each group were measured. The method for measuring the stability of the film is: observe the surface of the implant with an electron microscope, and check whether the coating cracks or falls off.

[0054] Simultaneously biocompatibility testing was performed. The specific test method is as follows: the human osteosarcoma cell line MG63 was inoculated on the surface of the implants of each of the above groups, and each group was set up with 5 repetitions, and...

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Abstract

The invention belongs to the field of denture manufacturing, and particularly relates to a surface treatment method of implants. The surface treatment method comprises the specific method that the implants are subjected to sand blasting firstly; then sulfuric acid and hydrochloric acid with specific concentration are combined to be used for acid etching jointly; an MAO method is used for treatingthe surfaces of the implants again; and finally the implants with the appropriate hole is classification, the excellent surface film thickness and the excellent biocompatibility are obtained.

Description

technical field [0001] The invention belongs to the field of denture manufacture, and in particular relates to a surface treatment method of an implant. Background technique [0002] Dental implants are made of pure titanium and / or titanium alloy. They are implanted into the alveolar bone to replace the lost natural tooth roots. They are connected by the abutment and the central screw to fix the upper crown and restore function. Implants with rough surfaces are more conducive to the attachment of osteoblasts, which can make the implant and alveolar bone more firmly integrated. [0003] At present, the surface roughening technology of dental implants is the most widely used SLA (sandblasting + acid etching) technology. SLA can form obvious primary and secondary holes on the surface of the implant, and the patchwork and well-defined hole structure can be quickly combined. Osteocytes, reduce healing time and increase bond strength. [0004] At present, manufacturers using SLA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/26C25D11/26B24C1/06A61C8/00
CPCA61C8/0012B24C1/06C23F1/26C25D11/026C25D11/26
Inventor 鄢新章冯崇敬王昌建杨维刘谋山刘帅
Owner CHENGDU BESMILE BIOTECH
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