Maxillofacial rehabilitation of a large facial defect resulting from an arteriovenous malformation utilizing a two-piece prosthesis

Large facial defects involving the oral cavity can be difficult to restore prosthetically because of a lack of anatomic undercuts, limited means of retention, mobility of soft tissue margins, and the weight of the prosthesis. Use of skin adhesives may be precluded because of the presence of persistent moisture and saliva. The maxillofacial rehabilitation, including the design and fabrication of a 2-piece silicone prosthesis retained by the teeth, of a patient with a large facial defect as a result of treatment for an arteriovenous malformation is described. The pathogenesis and therapeutic alternatives for arteriovenous malformations is also discussed.