Mauricio Barbieri Mezomo1, Paula Guerino2, Paulo Ricardo Baccarin Matje3, Eduardo Martinelli Santayana De Lima3. 1. Department of Orthodontics, Centro Universitário Franciscano, Santa Maria, Rio Grande do Sul, Brazil. mauriciomezomo@gmail.com. 2. Department of Orthodontics, Universidade Federal de Santa Maria, Santa Maria, Brazil. 3. Postgraduate Program in Dentistry at School of Health Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.