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h care workers.Background Aesthetic alterations in the face can be self-perceived and can affect quality of life in young adults. Objective To assess the impact of malocclusion on self- perceived oro-facial behaviour among young adults. Methods A Cross sectional study was conducted among 638 young adults (aged 18-21 years) of Hyderabad city. One college from each of the five zones of the Hyderabad city (five colleges) were selected by simple random sampling procedure. A 21-item Oro-facial investment scale (OFIS) questionnaire assessing sel