Bisphenol A Glycidyl Methacrylate (Bis-GMA) is a chemical compound that is commonly used in the production of dental materials and composites. It is a type of resin that exhibits excellent adhesive properties.
Bis-GMA is derived from bisphenol A, a primary substance used in the synthesis of different forms of polycarbonate and epoxy resins. Through a process known as glycidylation, bisphenol A is modified to form a glycidyl methacrylate monomer, resulting in the creation of Bis-GMA.
Bis-GMA is widely used in dentistry due to its desirable properties, including high strength, low shrinkage, and good bonding capabilities. It is commonly used as a matrix resin in dental composites, which are tooth-colored materials used to restore damaged or decayed teeth. Bis-GMA acts as a cross-linking agent, contributing to the composite's overall strength and stability.
Furthermore, Bis-GMA is known for its biocompatible nature, meaning it is well-tolerated by tissues in the oral cavity. It also exhibits good resistance to wear and degradation, ensuring the longevity of dental restorations.
However, there have been concerns regarding the potential health effects of Bis-GMA due to its similarity in structure to bisphenol A, which has been associated with certain health risks. It is important to note that Bis-GMA is typically bound within the polymer matrix of dental composites and is considered safe when used as intended in dental applications.
