Dentofacial deformities have an effect on the quality of life (QoL) by affecting numerous elements of an individual's life and oral health. Orthognathic surgery is generally performed to correct facial abnormalities related to the maxilla and/or mandible. Several observational studies have looked at how orthognathic surgery and other factors affect the QoL of adults. The reported overall satisfaction in observational studies is high, ranging from 70% to 87%. Satisfaction in terms of aesthetic outcome is higher compared to functional improvement, especially in female patients. Additionally, orthodontic surgery resulted in remarkable improvements in social adjustment, social functioning, self-esteem, selfconfidence, and facial appearance changes, as well as positive life improvement. Finally, it has been determined that orthognathic surgery results in physical and psychosocial quality of life improvements after surgery and is connected with high patient satisfaction ratings. Psychological variables and aesthetics exerted a considerable influence on the patient's QoL and were more influential in determining large changes than functional considerations.