Abstract
Craniometaphyseal dysplasia (CMD) is a rare genetic disease affecting bone metabolism with sclerosis of craniofacial bones. Orthognathic surgery has rarely been described in this patient population due to the bony thickness, making osteotomies challenging. We present a 19-year-old male with CMD with malocclusion, severe midface hypoplasia, and obstructive sleep apnea. With the aid virtual planning, we safely performed a combined LeFort III/I midface advancement to correct a negative overjet to improve occlusal balance, decrease scleral show, and diminish daytime sleepiness.
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