1. Division of Oral and Maxillofacial Surgery and Implantology, Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil.
2. Catholic Salesian Auxilium University Center, Faculty of Dentistry, Araçatuba, São Paulo, Brazil.
3. Division of Histology, Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil.
4. Dental Research Division, Department of Periodontology, Guarulhos University, Centro, Guarulhos, Brazil.