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Fundamental studies on mechanism of adhesion of dental adhesive resin

牙科粘合树脂粘合机理的基础研究

基本信息

批准号：
59440081
负责人：
MASUHARA Eiichi
金额：
$ 11.71万
依托单位：
Tokyo Medical and Dental University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (A)
财政年份：
1984
资助国家：
日本
起止时间：
1984 至 1985
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-59440081/
关键词：
Dental adhesive Enamel Dentin Alloy Procelain Eunctional monomer 表面処理

项目摘要

1. Adhesives and surface treatment of adherendThe surface properties of adherend affects the long term stability of adhesion. The most effective surface treatments were found to be the application of 60% phosphoric acid or 10% citric acid - 3% ferric chloride solutions for enamel, the application of u/% citric acid - 3% ferric chloride ( or cupric chloride ) solution for dentin, and various treatments to roughen surfaces or the application of functional monomer for dental alloys or porcelain.2. Introduction of various kinds of functional monomersFunctional monomers such as 4-META and Phenyl-P are known to improve the stability of adhesion. Various kinds of monomers were newly synthesized or introduced to enhance adhesive strength. They are MBPA with anhydride group or MPMA with thiophenol group for dental alloys, and KBM503 with trimethoxysilyl group for porcelain. The experimental adhesive resins containing one of these functional monomers were prepared, and the methods of applications or mechanism of adhesion was precisely examined.3. Evaluation of experimental adhesive resin systemMMA - TBBO resins containing MBPA showed durable and stable adhesion to gold alloy type IV, gold-silver-palladium alloys and nickel-chromium alloys. This effect was considered to be caused by the incorporation of methylene group spacers into the monomer molecules. In the case of MPMA, adhesive strength, especially to palladium or gold-silver-palladium alloys, was significantly enhanced by adsorbing the monomer on the adherend surface before the application of adhesives. The chemical bond between MPMA and palladium was ascertained by ESCA analysis. The application of KBM coupling agent to porcelain surface was also found to improve the durability of adhesion. The method of application of these experimental adhesive resins was evaluated clinically.

1. 胶粘剂及其表面处理胶粘剂的表面性能影响着胶粘剂的长期稳定性。最有效的表面处理方法是用60%磷酸或10%柠檬酸- 3%氯化铁溶液处理牙本质，用u/%柠檬酸- 3%氯化铁（或氯化铜）溶液处理牙本质，以及对粗糙表面进行各种处理或使用功能单体处理牙合金或瓷器。各种功能单体的介绍功能单体如4-META和苯基- p被认为可以提高粘附的稳定性。为提高粘接强度，新合成或引入了各种单体。牙科合金用的是带酸酐基团的MBPA或带噻吩基团的MPMA，陶瓷用的是带三甲氧基的KBM503。制备了含其中一种功能单体的实验粘接树脂，并对其应用方法和粘接机理进行了详细的探讨。含MBPA的mma - TBBO树脂对IV型金合金、金银钯合金和镍铬合金具有持久稳定的粘接性能。这种效应被认为是由亚甲基间隔剂掺入单体分子引起的。在MPMA的情况下，在应用粘合剂之前，通过在粘附表面吸附单体，可以显着提高粘附强度，特别是对钯或金银钯合金的粘附强度。通过ESCA分析确定了MPMA与钯之间的化学键。将KBM偶联剂应用于陶瓷表面，可以提高陶瓷的粘接耐久性。临床评价了这些实验性粘接树脂的应用方法。