Physical property evaluations of perfluorotriethylene glycol dimethacrylate as a potential reactive diluent in dental composite resins

Perfluorotriethylene glycol dimethacrylate (FTEGDMA), a fluoro analog of tr iethylene glycol dimethacrylate (TEGDMA), was evaluated in dental composite s. During, physical properties, and water sorption of FTEGDMA-ethoxylated b isphenol A dimethacrylate (BisEMA) and bisphenol A glycol dimethacrylate (B isGMA)-TEGDMA as well as TEGDMA-BisEMA blends were evaluated and compared. BisEMA and FTEGDMA viscosities were lower than BisGMA and TEGDMA. FTEGDMA h as the lowest refractive index and contact angle on silanated or non-silana ted glass. Polymerization studies showed that FTEGDMA did not significantly alter the decrease of C=C conversion of the various formulations. Further, the experimental FTEGDMA resins absorbed much less water than the control formulations.