Development of adhesive system of one-step self-etch adhesive with a high bond durability

2015 Fiscal Year Final Research Report

• Project/Area Number: 25462969
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Conservative dentistry
• Research Institution: Nihon University
• Principal Investigator: NISHIYAMA Norihiro 日本大学, 松戸歯学部, 教授 (90112953)
• Co-Investigator(Kenkyū-buntansha): UCHIDA Ryoichiro 日本大学, 松戸歯学部, 助教 (10623960) ; FUJITA Kou 日本大学, 松戸歯学部, 助教 (00147737) ; AIDA Masahiro 日本大学, 松戸歯学部, 教授 (40147715)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 接着 / ワンステップセルフエッチボンディング材 / ＭＤＰ / ＭＤＰのカルシウム塩

Outline of Final Research Achievements

To determine the amount of calcium salt of MDP (MDP-Ca salt) developed during the adhesive application period to enamel or dentin, we designed a series of experimental MDP-based one-step adhesives with different amounts of MDP (EX adhesive). The effect of the concentration of MDP added in the EX adhesive on the types of the molecular species of MDP-Ca salts and their production amounts were examined. The enamel predominantly yielded mono-calcium salts of the MDP monomer and dimer, but in contrast, the dentin yielded di-calcium salts of the MDP monomer and dimer along with them. The amounts of MDP-Ca salt developed enamel and dentin increased with an increase in the amount of MDP added.

Free Research Field

歯科生体材料