1 Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil.
2 School of Dentistry, Tuiuti University of Paraná, Curitiba, Paraná, Brazil.
3 Department of Dentistry, School of Dentistry, Univille - University of the Joinville Region, Joinville, Santa Catarina, Brazil.
4 Department of Orthodontics, Medical Faculty, University Hospital Bonn, Bonn, Germany.