1. Department of Clinical Dentistry, Graduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará - UFC, Fortaleza, Ceará, Brazil.
2. Department of Oral & Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo – USP, Ribeirao Preto, SP, Brazil.
3. Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará Brazil.
4. Federal University of Ceará-UFC, School of Dentistry at Sobral, Department of Dentistry, Sobral, Ceará, Brazil.
5. Division of Histology, Department of Basic Sciences, Dental School of Araçatuba, São Paulo State University – UNESP, Araçatuba, SP, Brazil.