supported by the National Natural Science Foundation of China(No.60878062);the Science Research Foundation of Ministry of Health & United Fujian Provincial Health and Education Project for Tackling the Key Research(No.WKJ2008-2-035);the Natural Science Foundation of Fujian Province(No.2012J01255)
We evaluate the ablation thresholds of Er:YAG and Er,Cr:YSGG laser for enamel and dentin. A total of 140 dental slices is evenly divided into two groups: the dentin group and the enamel group. Dental tissues are ir...