Brazilian Oral Research v.29 n.1 2015 Brazilian Oral Research Sociedade Brasileira de Pesquisa Odontológica (SBPqO) instacron:SBPQO Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Brazilian Oral Research, Volume: 29, Issue: 1, Article number: 00312, Published: 20 OCT 2015 Brazilian Oral Research, Vol 29, Iss 1, Pp 1-8 (2015)