Estelite Sigma Quick by Tokuyama is a light-cured, radiopaque, supra-nano filled universal composite resin utilizing a patented initiator system "Radical Amplified Photopolymerization Technology" (RAP).
Quick curing time = 10 seconds - with a halogen light >400mW/cm2
Extended working time = 90 seconds - under ambient light
High filler load offers decreased polymerization shrinkage
100% spherical fillers
Flexible shade matching, exceptional esthetics and long-term wear resistance
OPA2 is designed for asking slight stain or reconstructing a highly opaque tooth
