1. orthodontist at the Hospital de Pesquisa e Reabilitaçâo de Lesôes Lábio-Palatais, Universidade de Sâo Paulo, Bauru-SP, Brazil.
2. orthodontic resident at the Hospital de Pesquisa e Reabilitaçâo de Lesôes Lábio-Palatais, Universidade de Sâo Paulo, Bauru-SP, Brazil.
3. Department of Plastic Surgery, National Hospital, University of Oslo and affiliated with the National Center of Logopedics, Oslo, Norway.