What is Bisphenol A (BPA) ?
Bisphenol A is a reactant intermediate in the production of monomers used in dental resins. Theoretically there should not be any BPA present in the resin component after manufacture of Bis-GMA Resins (2 bis-glycidyl methacrylate), however research has shown that BPA can remain in the resin as an impurity during synthesis of bis-GMA as well as through hydrolysis of cured resin in the oral environment.
BPA is an ingredient used to make plastics called polycarbonates. Polycarbonate is generally used in consumer products because it does not crack or shatter, can be cleaned with very hot water, sterilizes easily, does not absorb odor and is an extremely safe alternative to glass. Polycarbonate plastic is commonly found in general household products such as water bottles, food storage containers, and a variety of childrens toys. Reports have appeared recently in the media that polycarbonate containers are unsafe for use in food contact applications, once BPA can migrate in small amounts into foods and beverages stored in materials containing the substance.
