and physiologic saline elutes of a dentin adhesive. Two other products exhibited no mutagenicity. It was concluded that the mutageniceffects of one of those dentin adhesives (SyntacFmv) were induced by thegenotoxic ingredient, glutaraldehyde (Schweikl et al., 1994). Dose-dependent mutagenicity was found in Ames tests with unpolymerized rnaterial oftwo dentin adhesives. Genotoxic effects were also caused bymonomeric solutions used in orthodontics for cemen- tation. However, no specific component was identified as the causative agent in those studies (Athas et al.,1979;Lietal.,1990).