Bis-GMA
Pronunciation: biz-JEE-em-ay
Also written as: Bis-GMA — Bisphenol A-glycidyl methacrylate
Bisphenol A-glycidyl methacrylate; the primary monomer used as the resin matrix in most dental composite resins and some adhesive systems.
Full Definition
Bis-GMA (bisphenol A-glycidyl methacrylate) is a viscous dimethacrylate monomer first synthesised by Rafael Bowen in the 1960s, forming the backbone of the majority of dental composite resin formulations. Because of its high viscosity, it is typically blended with diluent monomers such as TEGDMA (triethylene glycol dimethacrylate). Editors should note that the hyphenated form 'bis-GMA' is standard; 'BisGMA' and 'BISGMA' are variant spellings that should be standardised. The term appears in materials science literature, safety data sheets, and clinical research discussing biocompatibility concerns including potential oestrogenic activity.
Usage
Usage note: Standardise to the hyphenated form 'bis-GMA'. The full chemical name should be provided at first use in scientific manuscripts.
In Context
- "Concerns regarding bisphenol A leaching from bis-GMA-based composites prompted an investigation into alternative monomers." — Research article (biocompatibility)
- "The adhesive system's resin component contained bis-GMA as specified in the manufacturer's safety data sheet." — Materials safety document