1. Department of Pediatric Dentistry and Orthodontics; School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
2. Department of Pediatric Dentistry and Orthodontics; School of Dentistry; Universidade Vale do Rio Verde; Três Corações Brazil
3. Department of Pediatric Dentistry and Orthodontics; School of Dentistry; Universidade Federal dos Vales do Jequitinhonha e Mucuri; Diamantina Brazil