Ultrasonographic Evaluation of Bone Formation after Maxillary Distraction Osteogenesis in Patients with Unilateral Cleft Lip and Palate

Abstract

Objective: Ultrasonographic (US) observation was carried out in order to investigate bone formation and remodeling after distraction osteogenesis (DOG) using the rigid external distraction (RED) system. Patients and method: The patients were seven cases of unilateral cleft lip and palate treated using the RED system: six males and one female with the mean age of 19 years. The amount of maxillary advancement by DOG ranged from 7.5 to 17.5mm and the timing of US observation was from 2.2 to 6.9 years post-DOG. B mode US examination of the distracted maxillary anterior wall was performed with a 14-MHz transducer. Bone formation and remodeling were assessed on both cleft

The Effects of Hyperbaric Oxygen on Tooth Movement into the Regenerated Area after Distraction Osteogenesis

“…In clinical practice, HBO has been applied to DO in CLP patients (Kataoka et al, 2008) and, after closing the bone defect by transporting the bone segment, tooth movement into the distraction space has been applied (Yen et al, 2005). According to our results, tooth movement into the distracted area with HBO may minimize the relapse and stabilize the moving tooth after orthodontic movement because HBO accelerates ossification of regenerated bone and vascularization in the distracted area.…”