Abstract
The occurrence of dental caries adjacent to resin-based composite restorative materials is a common reason for restoration failure. 1 Sarrett DC Clinical challenges and the relevance of materials testing for posterior composite restorations. Dent Mater. 2005; 21: 9-20 Crossref PubMed Scopus (271) Google Scholar As noted by the authors of this study, human saliva has esterase activity that degrades resin-based composites and adhesives that contain bisphenol A-glycidyl methacrylate 2 Jaffer F Finer Y Santerre JP Interactions between resin monomers and commercial composite resins with human saliva derived esterases. Biomaterials. 2002; 23: 1707-1719 Crossref PubMed Scopus (102) Google Scholar (bis-GMA), which, in turn, allows cariogenic bacteria to penetrate the interface between the tooth and restoration surfaces. 3 Kermanshahi S Santerre JP Cvitkovitch DG Finer Y Biodegradation of resin-dentin interfaces increases bacterial microleakage (published online ahead of print May 26, 2010). J Dent Res. 2010; 89: 996-1001https://doi.org/10.1177/0022034510372885 Crossref PubMed Scopus (113) Google Scholar Cariogenic bacteria produce acids that lead to dental caries, but the potential bacterial degradation of resin-based dental composites and adhesives has not been studied. The purpose of this study was to determine whether cariogenic bacteria have esterase activity that degrades resin-based dental composites and adhesives.
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