Effects of the c'O IND.2' laser irradiation in enamel of human permanent molar: a scanning electron microscopy study - Watanabe, Ii-Sei; Liberti, Edson Aparecido; Azeredo, R A; Araujo, M V; Nuti Sobrinho, A; Goldemberg, S (Estomatologia e Cultura, 1986)