title: Wall-to-wall polymerization contraction of composite resins versus filler content.
abstract: Various amounts of microfiller, condensed microfiller, prepolymer plus microfiller, or macrofiller were added to an unfilled light-curable resin. The marginal adaptation of these experimental resin/filler mixtures was studied by measuring the wall-to-wall polymerization contraction (wtw-contraction) in dentin cavities in vitro. The investigation showed that increasing amounts of microfiller did not affect the wtw-contraction. However, mixtures made by the three other fillers showed a decreasing wtw-contraction with increasing filler concentration.
mesh_terms: D017438:Bisphenol A-Glycidyl Methacrylate; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003188:Composite Resins / Q000032:analysis; D003793:Dental Restoration, Permanent; D006801:Humans; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D017438:Bisphenol A-Glycidyl Methacrylate