Journal
JAPANESE DENTAL SCIENCE REVIEW
Volume 47, Issue 1, Pages 5-12Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jdsr.2010.02.001
Keywords
Adhesion; Hybrid layer; Degradation; Electron microscopy; Polymer; Resin adhesive
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Funding
- Ministry of Education, Science, Sports and Culture, Japan
- [20592384]
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Resin-dentin bonding was first achieved through mechanical hybridization between resin and collagen fibrils using a functional monomer containing resin system. In the last decade, new adhesive resin systems were frequently released onto the market within a short-period of time. Before and after commercialization, the bond integrity has been tested by bond tests, and leakage evaluation by researchers, but it is very difficult for clinicians to obtain a comprehensive, up-to-date understanding of their nature and degradation. Although newly developed adhesive resins have attempted to improve the bond strength at least in the first 24 h after bonding, the long-term durability of the bonds has not yet been established analytically. However, numerous recent studies have shown micromorphological evidence of biodegradation of resin-dentin bonds, due to hydrolysis of the resin and collagen fibrils within the bonds. This review mainly summarizes the most recent work in biodegradation of resin-dentin bonds based on micromorphological analyses of data obtained by scanning and transmission electron microscopy. (C) 2011 Japanese Association for Dental Science. Published by Elsevier Ltd. All rights reserved.
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