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Surface processing technology for dental implant

A dental implant and surface treatment technology, which is applied to dentures, cleaning methods using liquids, chemical instruments and methods, etc., can solve the problems of complex process, poor biological activity, long production cycle, etc., and achieve high bonding strength. Residue and contamination, effect of good surface structure

Inactive Publication Date: 2011-11-09
JIANGSU TRAUSIM MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they all have complex process, long production cycle, high cost and poor biological activity.

Method used

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  • Surface processing technology for dental implant
  • Surface processing technology for dental implant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In this embodiment, the steps of processing the cylindrical threaded pure titanium dental implant are:

[0027] A. After the pure titanium dental implant is finely ground, it is ultrasonically cleaned twice with acetone, absolute ethanol, and purified water in sequence, each time for five minutes, in order to clean and degrease, and then dry.

[0028] B. Use 24-40 mesh white corundum particles to sandblast the surface of the dental implant for 8 seconds. During the sandblasting process, the spray gun and the implant axis are at 45°, the sandblasting pressure is 0.5MPa, and the spray distance is 10cm, until the surface forms a uniform Gray, three-dimensional porous structure formed on the surface of the dental implant, the roughness Ra is about 3 μm, and the pit diameter of the porous structure is between 10 and 50 μm. Ultrasonic cleaning with purified water and drying.

[0029] C. Place blasted dental implants in 63wt% H 2 SO 4 In a mixed acid with 10wt% HCl, heat tr...

Embodiment 2

[0032] In this embodiment, the steps of processing the cylindrical threaded pure titanium dental implant are:

[0033] A. After the pure titanium dental implant is finely ground, it is ultrasonically cleaned twice with acetone, absolute ethanol, and purified water in sequence, each time for 7 minutes, so as to clean and degrease, and then dry.

[0034] B. Sandblast the surface of the dental implant with 24-40 mesh white corundum particles for 8 seconds. During the sandblasting process, the spray gun and the implant axis are 60°, the sandblasting pressure is 0.4MPa, and the spray distance is 8cm, until the surface forms a uniform Gray, the three-dimensional porous structure formed on the surface of the dental implant, the roughness Ra is about 4 μm, and the pit diameter of the porous structure is between 10 and 50 μm. Ultrasonic cleaning with purified water and drying.

[0035] C. Place the blasted dental implant in 55wt% H 2 SO 4 In a mixed acid with 18wt% HCl, heat treatme...

Embodiment 3

[0038] In this embodiment, the steps of processing the cylindrical threaded pure titanium dental implant are:

[0039] A. After the pure titanium dental implant is finely ground, use acetone, absolute ethanol, and purified water to ultrasonically clean it twice, each time for 8 minutes, so as to clean and remove oil, and then dry it.

[0040] B. Use 24-40 mesh white corundum particles to sandblast the surface of the dental implant for 8 seconds. During the sandblasting process, the spray gun and the implant axis are 60°, the sandblasting pressure is 0.3MPa, and the spray distance is 8cm, until the surface forms a uniform Gray, the three-dimensional porous structure formed on the surface of the dental implant, the roughness Ra is about 4 μm, and the pit diameter of the porous structure is between 10 and 50 μm. Ultrasonic cleaning with purified water and drying.

[0041] C. Place the blasted dental implant in 56 wt% H 2 SO 4In a mixed acid with 12wt% HCl, heat treatment in a ...

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Abstract

The invention discloses a surface processing technology for a pure-titanium dental implant. The technology comprises the following steps: A, removing oil from the dental implant by ultrasonic cleaning; B, sandblasting the dental implant by white corundum to make the surface of the implant to be uniform gray in color and allow a three-dimensional porous structure to be formed on the surface of the dental implant; C, carrying out acid etching on the surface of the sandblasted dental implant with a mixed liquid with a certain concentration and a certain ratio of sulfuric acid to hydrochloric acid to allow gradually decreased multilevel scallops to be formed on the surface of the dental implant; and D, flushing and neutralizing the acid etched dental implant, and removing oil. According to the surface processing technology for the dental implant designed by the invention, the multilevel porous structure with biological activity is formed on the surface of the pure-titanium implant, so the biological activity of the pure-titanium implant is improved, the stability of the implant is improved, the bone combination speed of the dental implant is accelerated, the bone interfacial combination strength of the implant is enhanced, thereby the technology has the advantages of simple and high efficient technology, and low cost.

Description

technical field [0001] The invention relates to dental implants in the field of dentistry, in particular to an improved sandblasting-acid etching surface treatment process for dental implants. Background technique [0002] Dental implantology has been developed since the 1950s and 1960s, and it has become very popular abroad, but its development level in our country is relatively low. Dental implantation is to plant an implant nail in the part of the patient's missing tooth, and then install the crown, which is equivalent to growing a new tooth, which is beautiful, convenient and comfortable. It will not wear down healthy teeth like installing fixed dentures, and does not require the aid of hooks and trays for removable dentures. The domestic dental implant market is basically monopolized by foreign countries, and the price is high. An important factor restricting the development of domestic dental implants is the surface treatment process of implants. For the surface tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C13/08C23F1/30B08B3/12
Inventor 罗志聪张翔
Owner JIANGSU TRAUSIM MEDICAL INSTR
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