Platelet-rich Fibrin and Grooving for Sagittal Split Osteotomy

Inclusion Criteria: Inclusion criteria include patients ages 18 and older, male or female, with a diagnosis of dentofacial deformity and/or OSA who will undergo BSSO. Exclusion Criteria: Exclusion criteria include patients with a history of previous mandibular surgery and preoperative neurosensory dysfunction of the trigeminal nerve. Other exclusion criteria are patients without capacity to consent for themselves or unable to read the consent form. Subjects who have conditions which may impair healing (such those on bisphosphonates treatments, blood thinners, corticosteroids, chemotherapy, etc.) will be excluded from participation in the research.