Comparison of “Orthodontic First” and “Surgery First” Approaches to Quality of Life in Orthognathic Surgery Patients: A Prospective Cohort Study

This prospective cohort study aimed to assess changes in quality of life (QoL) for “orthodontic first” approach (OFA) and “surgery (SFA) patients. Sixty patients who underwent orthognathic surgery via either the OFA (n = 30) or SFA provided self-administered questionnaires (SAQs) about their (Thai version OQLQ). Data were collected at four time points: before (T1), postoperatively, 1 (T2), 3 (T3) 6 months (T4). Intragroup intergroup comparisons performed by Friedman test Mann–Whitney U test, respectively. Both showed that QoL scores gradually improved each domain after surgery. The pattern improvement group was: facial esthetics (E) month; awareness deformities (A) social aspects deformity (S) months; oral function (F) months. most concerning Thai our center OQLQ was esthetic domain.