Intraoral mandibular distraction osteogenesis in a patient with severe micrognathia secondary to TMJ ankylosis using a tooth and bone–anchored device (PIT device): A case report

Abstract

Distraction osteogenesis (DO) has been used for the reconstruction of congenital and acquired deformities of the mandible.1-4 The use of DO has the added benefit of distraction histogenesis, or soft tissue augmentation.3,5,6 The technique of mandibular DO has quickly evolved from the use of extraoral devices to that of hybrid appliances and intraoral devices. The intraoral appliances have advantages over extraoral devices by not only reducing or eliminating the problems of facial scaring caused by the transcutaneous pins, but also by avoiding the emotional and cosmetic disadvantages of an extraoral appliance.