The study aimed to evaluate soft tissue changes in patients with retruded chins using three methods: fat augmentation, PEEK augmentation, and sliding genioplasty as a control.
A total of 33 patients were divided into the three treatment groups, and both pre-op and post-op assessments were conducted, including the evaluation of patient satisfaction using the Face-Q questionnaire.
Results showed that fat augmentation had a significant reduction in soft tissue relapse after 6 months compared to the control, while PEEK results were comparable to the control, indicating that fat augmentation is effective for mild to moderate cases while PEEK provides stable outcomes.