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

Abstract EN

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.