Most Pit and ﬁssure sealants are based on: (A) Bis GMA, (B) TEGDMA, (C) UDMA, (D) All of the above
Answer is A. The most common sealants are based on bisphenol A-glycidyl methacrylate (Bis-GMA) resin and are light-cured, although some self-cured products are also available. The viscous Bis-GMA resin is mixed with a diluent, such as triethylene glycol dimethacrylate, to produce a reasonably low-viscosity, ﬂowable resin.
Craig Ed 14th P:123