title: Epidemiology of periodontal disease.
authors.affiliation: Federal University of Minas Gerais, Contorno Avenue 4849, 30110031 Belo Horizonte, MG, Brazil.
authors.forename: Fernando Oliveira
authors.initials: FO
authors.lastname: Costa
authors.forename: Cristiano
authors.initials: C
authors.lastname: Susin
authors.forename: Jose Roberto
authors.initials: JR
authors.lastname: Cortelli
authors.forename: Isabela
authors.initials: I
authors.lastname: Almeida Pordeus