Segmental reconstruction of maxillary defects by arced distraction osteogenesis of zygoma / 中华口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the possibility of segmental maxillary regeneration by arced distraction osteogenesis of zygoma.</p><p><b>METHODS</b>The distraction of zygoma with the internal arced devices was performed in 2 dogs to simulate the reconstruction of maxillary defect. The zygoma was distracted about 12 mm, and the process of new bone formation was studied by histology and scanning electron microscopy.</p><p><b>RESULTS</b>The transport disk was distracted about 12 mm around the arc. After 8 weeks of consolidation, the density of new bone was close to that of normal bone.</p><p><b>CONCLUSIONS</b>The segmental maxillary regeneration by arced distraction osteogenesis of zygoma is possible.</p>