1. Oral Medicine, Department of Diagnosis and Surgery São Paulo State University (Unesp), School of Dentistry Araraquara São Paulo Brazil
2. Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine University of Michigan, School of Dentistry Ann Arbor Michigan USA
3. Oral Pathology, Department of Stomatology, Public Oral Health and Forensic Dentistry, Ribeirão Preto Dental School University of São Paulo (FORP/USP) Ribeirão Preto São Paulo Brazil