Abstract : Common dental disorders like malocclusion may have a significant effect on patients' self-confidence, social life, and oral health. This study's goal was to ascertain if orthodontic treatment affects quality of life in terms of oral health (OHQoL). Materials and Procedures 302 participants in two "treatment" and "no treatment" groups from a cross-sectional study using self-reported data were present at a professional orthodontic practise. The patient's OHQol was evaluated using the OHIP-14 measure, oral health impact profile. In the data analysis, a linear regression model was used. Results: One OHIP-14 question and one domain revealed a significant association (P 0.05) between the two groups, indicating a difference in physical restriction. In the therapy group, this OHQoL domain was 1.86 times less likely to be complex than in the "no treatment" group, according to a linear regression model. Conclusion: Patients who had finished their orthodontic treatment had higher OHQoL scores in the physical domain than patients who had never had treatment.