Development of resin adhesive system by novel ceramic primer

2010 Fiscal Year Final Research Report

• Project/Area Number: 20592287
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Prosthetic dentistry
• Research Institution: Nihon University
• Principal Investigator: AIDA Masahiro Nihon University, 松戸歯学部, 教授 (40147715)
• Co-Investigator(Kenkyū-buntansha): NISHIYAMA Norihiro 日本大学, 松戸歯学部, 教授 (90112953) ; WAKAMI Masanobu 日本大学, 松戸歯学部, 講師 (60297851) ; GOTO Haruhiko 日本大学, 松戸歯学部, 助手 (70307875)
• Project Period (FY): 2008 – 2010
• Keywords: セラミックプライマー / 接着耐久性 / 酸性モノマー / 塩酸

Research Abstract

In order to understand the degtadation mechanisms of commercially available ceramic primers,we designed novel ceramic primers,consisting of γ-methacryloyloxypropyltrimethoxysilane (γ-MPTS) and 4-META,MDP or hydrochloric acid (HCl). The ceramic bond durability of resin was examined by measuring the shear bond strength to the ceramic silanated by novel ceramic primers,before and after thermo-cycling. Application of HCl allowed for an increase in the ceramic bond durability more effectively than 4-META or MDP did,since HCl provided greater amounts of protonated proton than 4-META or MDP to accelerate a hydrolysis of the methoxy portion in the silicone-functional group of γ-MPTS. Use of HCl increases the ceramic bond durability of resin.