New restoration system of root dentin by durable bonding of resin modeled on electron transport system

2014 Fiscal Year Final Research Report

• Project/Area Number: 24592924
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthetic dentistry
• Research Institution: Nagasaki University
• Principal Investigator: TAIRA Yohsuke 長崎大学, 医歯薬学総合研究科(歯学系), 准教授 (40226725)
• Co-Investigator(Kenkyū-buntansha): SOENO Kohyoh 長崎大学, 医歯薬学総合研究科(歯学系), 助教 (50315256) ; KAMADA Kohji 長崎大学, 医歯薬学総合研究科(歯学系), 助教 (60264256)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 接着

Outline of Final Research Achievements

The purpose of this study was to evaluate experimental primers containing electron carriers on adhesive bonding to dentin, and to analyze the bonding mechanism.
In conclusion, a primer containing a certain chlorophyll derivative (CLD) with 2-hydroxyethyl methacrylate (HEMA) improved bond strength between 4-META/MMA-TBB resin and dentin. In addition, differential scanning calorimetry (DSC) analysis revealed that CLD accelerated polymerization of 4-META/MMATBB resin depending on its concentration. Accordingly, it was suggested that CLD accelerates polymerization of monomers diffused into the etched dentin, which contribute high bond strength.

Free Research Field

歯科補綴学