1. Department of Orthodontics and Pediatric Dentistry, School of Dentistry University of Michigan Ann Arbor Michigan USA
2. Department of Periodontics and Oral Medicine, School of Dentistry University of Michigan Ann Arbor Michigan USA
3. Private Practice Charlotte North Carolina USA
4. Graduate Program in Orthodontics Pontifical Catholic University of Minas Gerais Belo Horizonte Brazil
5. Department of Orthodontics, School of Dentistry Federal University of Rio de Janeiro Rio de Janeiro Brazil