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Development of novel bonding system between esthetic materials and tooth

开发美学材料与牙齿之间的新型粘合系统

基本信息

批准号：
18592147
负责人：
AIDA Masahiro
金额：
$ 2.43万
依托单位：
Nihon University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18592147/
关键词：
ceramic primer degradation 29SiNMR bond durability adhesive 29Si NMR γ-MPTS 加水分解長期安定性

项目摘要

In this study, we designed a one bottle type or two-bottle type ceramic primer consisting of γ-methacryloxypropyltrimethoxysilane, ethanol, water and hydrochloric acid. In order to improve the shelf-life of the ceramic primer and the porcelain bond durability of the resin, the bonding performance of the resin cement to the porcelain surface silanated by the ceramic primer designed and the porcelain bond durability of the resin were examined.Initially, we designed a one-bottle type ceramic primer consisting of γ-MPTS and 90 vol% ethanol solution which had been prepared by addition of acidic water to ethanol. As a result, the methoxy portion in the silicone functional group in the γ-MPTS hydrolyzed and the hydrolyzed species of the γ-MPTS condensed together. With prolonging the storage period, the bond strength of the resin to the porcelain surface silanated by the ceramic primer decreased since the molecular weight of the silane species produced by a condensation became greater.In order to improve the shelf-life of the ceramic primer, we designed a two-bottle type ceramic primer. The two-bottle type ceramic primer provided a longer shelf-life than a one-bottle type ceramic primer and a higher porcelain bond durability of the resin than commercial ceramic primer. However, we need further investigation about an acidic component, which induces a hydrolysis of the methoxy portion in the silicone functional group in the γ-MPTS. This was because an acidic component will also adsorb on the porcelain surface as the same as the γ-MPTS.

本研究设计了由γ-甲基丙烯氧丙基三甲氧基硅烷、乙醇、水和盐酸组成的一瓶或两瓶陶瓷底漆。为了提高陶瓷底漆的保质期和树脂的粘瓷耐久性，考察了所设计的陶瓷底漆硅化处理后的陶瓷表面与树脂的粘接性能和树脂的耐瓷性能。初步设计了一种由γ-MPTS和90vol%乙醇溶液组成的一瓶式陶瓷底漆，该底漆是在乙醇中加入酸性水制备的。结果表明，γ-MPTS中有机硅官能团中的甲氧基部分发生了水解，γ-MPTS中的水解物凝聚在一起。为提高陶瓷底漆的保质期，为提高陶瓷底漆的保质期，设计了一种双瓶式陶瓷底漆。双瓶型陶瓷底漆比单瓶型陶瓷底漆具有更长的保质期，树脂的陶瓷粘结耐久性高于商品陶瓷底漆。然而，我们需要进一步研究导致γ-MPTS中硅氧基官能团甲氧基部分水解的酸性成分。这是因为与γ-MPTS一样，酸性成分也会吸附在瓷器表面。