THIO-URETHANE ADDITIVES SURFACE PROPERTIES POLYMERIZATION KINETICS GEL-POINT CONVERSION PRE-HEATING RESTORATVE COMPOSITES DEGREE OF CONVERSION FRACTURE TOUGHNESS COMPOSITE THIO-URETHANE OLIGOMERS RHEOLOGICAL PROPERTIES PULSE-DELAY CURING MECHANICAL STRENGTH DILUENT DIMETHACRYLATE MONOMERS DENTAL RESTORATION POLOYMERIZATION KINETICS CHAIN-TRANSFER REACTIONS ADHESIVE PRE-POLYMERIZED ADDITIVES IRRADIANCE PREPOLYMERIZED ADDITIVES FILLER FUNCTIONALIZATION DENTAL COMPOSITES VOLUMETRIC SHRINKAGE COMPOSITE RESTORATIONS EXTRACTION STUDY FLEXURAL MODULUS LOW MODULUS LINERS DYNAMIC MECHANICAL ANALYSIS METHACRYLATES THIOURETHANE OLIGOMERS NETWORKS GLASS FIBER RESIN COMPOSITE RESIN CEMENT DIMETHACRYLATES MICROHARDNESS COMPOSITE RESIN RESIN MATRIX KINETICS OF CONVERSION RESTORATIVE COMPOSITES SHRINKAGE MECHANICAL PROPERTIES COMPOSITE RESINS EXPERIMENTAL COMPOSITES MECHANICAL RESISTANCE RESIN CEMENTS GLASS FILLER POLYMER GRAFTING INORGANIC CONTENT DELAYED GELATION