Affiliation: | aPostgraduate student (Ph.D.), Department of Orthodontics, Pontifical Catholic University of Rio Grande Do Sul, Porto Alegre, Rio Grande do Sul, Brazil;bProfessor, Department of Orthodontics, Pontifical Catholic University of Rio Grande Do Sul, Porto Alegre, Rio Grande do Sul, Brazil;cAssistant professor, Department of Orthodontics, Pontifical Catholic University of Rio Grande Do Sul, Porto Alegre, Rio Grande do Sul, Brazil |