1 Department of Surgery and Integrated Clinic, Araçatuba Dental School, Universidade Estadual Paulista Júlio de Mesquita Filho Araçatuba--UNESP, Araçatuba, Brazil, oliveirajulius@yahoo.com.br Department of Surgery, Patos Dental School, Campina Grande University, Campina Grande, Brazil Department of Surgery and Integrated Clinic, Araçatuba Dental School, Universidade Estadual Paulista Júlio de Mesquita Filho Araçatuba--UNESP, Araçatuba, Brazil.