Table of Contents
Plastic Surgery International
Volume 2012, Article ID 913807, 5 pages
Research Article

The Long-Term Effects of Mandibular Distraction Osteogenesis on Developing Deciduous Molar Teeth

1Dalhousie Pediatric Craniofacial Group, Department of Surgery, IWK Health Centre, Dalhousie University, P.O. Box 9700, Halifax, Nova Scotia, Canada B3K 6R8
2Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada B3K 6R8
3Division of Pediatric Otolaryngology, Rady Children’s Hospital, University of California-San Diego, San Diego, CA 92123, USA

Received 8 August 2012; Accepted 24 September 2012

Academic Editor: Francesco Carinci

Copyright © 2012 Paul Hong et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. Many studies have demonstrated the effectiveness of mandibular distraction osteogenesis (MDO) in alleviating the micrognathia-associated upper airway obstruction but very few studies have focused on long-term dental outcomes. Objective. To report the effect of MDO on developing deciduous molars in the distraction area. Methods. A retrospective chart review was performed to identify patients with Pierre Robin sequence who underwent MDO with documented long-term dental assessments. Results. Ten children (mean age at surgery 69.8 days; 6 boys and 4 girls) were included for analysis. All patients underwent bilateral MDO with an inverted L-shaped osteotomy to avoid injuring tooth buds. The dental developmental stage was primary dentition in all children. Overall, 3 patients developed minor dental problems involving 4 molar teeth (2 root malformations and 2 shape anomalies) but they did not require any interventions. Conclusion. Significant primary molar developmental complications were not seen in our patients. The use of internal distractor device with an inverted L-shaped osteotomy seems to be a safe surgical approach in regards to dental outcomes.