Mandibular setback osteotomies potentially lead to narrowing of the pharyngeal airways. subsequently resulting in post-surgical obstructive sleep apnea (OSA). To summarize current evidence from systematic reviews that has evaluated pharyngeal airway changes after mandibular setback with or without concomitant upper jaw osteotomies. PubMed. https://www.chiggate.com/tenga-flip-orb-masturbator-fashion/