| Popis: |
Quality of life instruments related to oral health are used with increasing frequency in research. However, these instruments are not available in all countries or languages. The availability of multilingual versions of instruments, valid for different cultures, is important for epidemiological research. This study served to translate and cross-culturally adapt the questionnaire developed by Feldmann in 2007 concerning the perceptions of adolescent patients about orthodontic treatment, into English. Initially, the equivalence of concepts and items was discussed by a group of experts who examined the items in the questionnaire. Four adolescents were interviewed with use of a focus group. The instrument was then subjected to the following steps: two translations into Brazilian Portuguese by independent translators, pre-testing of the questionnaires in 6 patients, back translation, review by a committee and finally a pilot study with the final version. In this stage, 20 adolescents aged between 12 and 17 years of both genders were interviewed and evaluated at the Orthodontics Clinic of the School of Dentistry of the State University of Rio de Janeiro. The questionnaire was applied to two groups: untreated adolescents and adolescents undergoing orthodontic treatment. Based on these evaluations, the Brazilian version of the Feldmann questionnaire was produced, with application and format appropriate for the target population. The translation and cross-cultural adaptation of the questionnaire into Brazilian Portuguese was performed ensuring its semantic and conceptual equivalence with the original instrument, and the final version was consistent in a pilot study. |
