1. Postgraduate Program in Dentistry, Cruzeiro do Sul University, São Paulo, SP, Brazil.
2. Department of Diagnosis and Surgery, São José dos Campos School of Dentistry of the São Paulo State University, São José dos Campos, SP, Brazil.
3. Division of General Pathology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil.
4. Laboratory of Virology, Institute of Tropical Medicine of São Paulo, School of Medicine, University of São Paulo, São Paulo, SP, Brazil.
5. Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University, Ankara, Turkey.