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The following product tutorials are related to this product review.

• Estelite Sigma Quick - A Spherical Revolution

Estelite Sigma Quick is a low-shrinkage, submicron-filled composite for use in both anterior and posterior restorations. This enhanced version of Estelite Sigma implements RAP technology (Radical-Amplified Photopolymerization initiator technology), which offers increased working time of 90 seconds under ambient light, while decreasing curing time to 10 seconds with a halogen light. Estelite Sigma Quick contains 82% by weight of silica-zirconia filler. The composite is available in both syringes and pre-loaded tips (PLTs) in shades A1, A2, A3, A3.5, A4, A5, B1, B2, B3, B4, C1, C2, C3, OA1, OA2, OA3, OPA2 (opalescent), BW (bleach white), WE (white enamel), and CE (clear enamel). This product received a 99% clinical rating. Evaluation Protocol