1 Department of Oral Diagnosis, University Center of Para-CESUPA, Belém, Brazil Department of Oral Diagnosis, University Center of Para-CESUPA, Belém, Brazil Department of Oral Diagnosis, University Center of Para-CESUPA, Belém, Brazil Cell Culture Laboratory, School of Dentistry, Federal University of Pará (UFPA) Belém, Brazil Cell Culture Laboratory, School of Dentistry, Federal University of Pará (UFPA) Belém, Brazil Department of Oral and Maxillofacial Surgery, University Center of Para-CESUPA, Belém, Brazil.