Cross-cultural adaptation of the orthognathic quality of life questionnaire (OQLQ) in a Brazilian sample of patients with dentofacial deformities

The OQLQ-Brazilian preserved and reached equivalence with its original source and the findings also corroborate that there is good evidence for the construct validity. The demonstration of its reproducibility, reliability and validity makes this instrument an additional useful parameter for evaluation of the impact of dentofacial deformity over the quality of life for Brazilians.