[1] Univ Fed Parana, Ave Prefeito Lothario Meissner 632, BR-80210170 Curitiba, Parana, Brazil
[2] Univ Fed Parana, Hosp Clin, Rua Gen Carneiro,181,Alto da Gloria, BR-80060900 Curitiba, Parana, Brazil
[3] Univ Fed Parana, Dept Stomatol, Ave Prefeito Lothario Meissner,632 Jardim Bot, BR-80210170 Curitiba, Parana, Brazil