1. Department of Oral and Maxillofacial Surgery Dental School of Pernambuco, University of Pernambuco (FOP/UPE), Recife Pernambuco Brazil
2. Department of Oral and Maxillofacial Surgery of the Hospital da Restauração (HR), Recife Pernambuco Brazil
3. Department of Anesthesiology of the Hospital da Restauração (HR), Recife Pernambuco Brazil