00000cab a22000003a 4500 UP-1685523046126181992 Buklod 20231008011648.0 m |o d | cr ||||||||||| 100621s xx d | ||r ||||| || UPDent eng Chiu, Joanna JN The effect of premature polymerization from ambient light on the working time and fracture toughness of visible light curing composites Joanna JN Chiu, Christine AA Pabustan, Michelle C. Sunico. vol. 58, no. 2 pp 24-32 This study aims to determine Premature polymerization. Working time. Composite. Ambient light. Fracture toughness. Pabustan, Christine AA. Sunico, Michelle C. The Journal of the Philippine Dental Association 58, 2 (2007). UPMNL DENT Article