Affiliation: | 1. Department of Oral Medicine and Odontopediatric, Health Sciences Center, Universidade Estadual de Londrina, Londrina, Brazil;2. Department of Histology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Brazil;3. Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Brazil |