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Nanometer silicon coating surface modifying method for dental non-silicate base ceramic

A technology of surface modification and dental ceramics, applied in dentistry, dental preparations, dental prostheses, etc., can solve the problems of expensive equipment and complex requirements, achieve high practical value, simplify operation steps, and reduce costs

Inactive Publication Date: 2009-08-26
章非敏
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two technologies have complicated requirements, expensive equipment, and almost no application in China. Therefore, it is necessary to find an economical and effective new way to replace them.

Method used

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  • Nanometer silicon coating surface modifying method for dental non-silicate base ceramic
  • Nanometer silicon coating surface modifying method for dental non-silicate base ceramic
  • Nanometer silicon coating surface modifying method for dental non-silicate base ceramic

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Experimental program
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Effect test

Embodiment

[0019] 1. Preparation of Nano-Silicon Coating

[0020] Select nano-silica sol with a concentration of 40%, the average particle size of silicon oxide particles in the sol is 16.6nm, the standard deviation is 8.1nm, the minimum particle diameter is 3nm, and the maximum is 100nm. figure 1 The particle size analysis of nano-silica sol (temperature 25°C) shows the specific distribution of intensity values ​​of particles of various sizes in the sol.

[0021] The sintering and glass infiltration of In-Ceram alumina ceramics (VITA, Germany) are completed in the laboratory in turn, and made into 10×5×1mm 3 The substrate was sandblasted with 110 μm alumina for 20 seconds at a place 10 mm away from the surface of the substrate under a pressure of 0.2 MPa, ultrasonically cleaned in anhydrous ethanol for 10 minutes, and then dipped in a small amount of nano-silica sol with a small brush with a width of 10 mm (so that the brush is wet but without liquid) Drop formation) along the long axi...

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Abstract

The invention discloses a method for modifying the bonding surface of dental non-silicate-based ceramics, which belongs to the tooth restoration technology. Including the film forming process and the heat treatment step of the restoration after film formation; the dental ceramic restoration is sandblasted with 110 μm alumina for 20 seconds under a pressure of 0.2 MPa, ultrasonically cleaned in absolute ethanol for 10 minutes, and dried. Brush the sandblasted surface evenly with 40% nano-silica sol, and then place it in a closed environment with a relative humidity of 60-70% to dry for 24 hours. Then heat treat. The beneficial effect of the invention is that it can prepare high-quality coatings on the bonding surface of complex dental non-silicate-based ceramic restorations, simplifies the operation steps, reduces the cost, and achieves the principle of not affecting the aesthetic effect. For the purpose of improving the ceramic / resin bonding strength, the relevant materials and equipment do not need to be imported, which is in line with the national conditions, has good clinical application prospects and high practical value.

Description

technical field [0001] The invention relates to the field of dental all-ceramic restoration, in particular to a nano-silicon coating surface modification process for dental non-silicate-based ceramics. It is used for surface treatment before bonding of all-ceramic restorations, and a process for improving the bonding performance of dental non-silicate-based ceramic materials and resins. Background technique [0002] Ceramic materials are favored in the field of oral hard tissue repair due to their dense texture, wear resistance, smooth surface, good biocompatibility and chemical stability, and their ability to reproduce the shape, color and luster of natural teeth to the greatest extent. Porcelain-fused-to-metal materials are currently the most widely used fixed tooth restorations in clinical practice, but the sensitization and biotoxicity of metal elements such as nickel can cause some adverse consequences; at the same time, the existence of metal-based crowns makes the res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C13/083A61K6/02
Inventor 章非敏谢海峰
Owner 章非敏
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