The impact of orthognathic surgery on quality of life for class III dentofacial deformities.

In this study, we aim to evaluate the quality of life in patients with Class III deformities after orthognathic surgery. A total of the 40 patients (26 female and 14 male) were included. The mean age of the patients was 24.85. Patients' ages ranged from 20 to 36 years. All patients received orthodontic treatment before surgery. Sagittal split ramus osteotomy was performed for single jaw patients. Le Fort I osteotomy and sagittal split ramus osteotomy was performed for double jaw patients. Patients completed the Oral Health Impact Profile 14 (OHIP-14) and Orthognathic Quality of Life Questionnaire (OQLQ) three times. [Preoperatively (T0), 1(st) week after orthognathic surgery (T1) and in the 6(th) - 12(th) months after orthognathic surgery (T2)]. There was a statistically significant difference in the dimensions of OHIP-14 when the preoperative (T0) score, postoperative 1(st) week (T1) score and postoperative 6(th) - 12(th) month (T3) score are compared among themselves except for psychological discomfort, physical disability, and handicap. OQLQ total score and preoperative (T0) score was greater than the postoperative 1(st) week (T1) score and the postoperative 1(st) week(T1) score was greater than the postoperative 6(th) - 12(th) month (T2) scores except oral function. When single jaw and double jaw surgeries were compared, no statistically significant difference was found between OHIP-14 and OQLQ total scores for preoperative, postoperative 1(st) week, and postoperative 6(th) - 12(th) months. When both OHIP-14 and OQLQ scores were examined after orthognathic surgery, the OHRQOL of patients with Class III dentofacial deformity improved significantly.