The importance of radiographic diagnosis of incipient occlusal caries: case report - Candido, Liliani Aires; Oliveira, Thaís; Sakai, Vivien Thiemy; Silva, Salete Moura Bonifácio da; Abdo, Ruy Cesar Camargo; Machado, Maria Aparecida Andrade Moreira (Odontologia Clínico-Científica, 2008)