Costal graft as a support for bone regeneration after mandibular juvenile ossifying fibroma resection: an unusual case report.
Journal of Stomatology, Oral and Maxillofacial Surgery(2017)
摘要
Spontaneous regeneration of bone tissue after mandibular resection is rare in adults, although it does often take place in children. Periosteum conservation appears to play a major role in this healing process. We here report regarding a 5-year-old boy who exhibited a large mandibular trabecular juvenile ossifying fibroma. The lesion was treated by mandibulectomy, with careful preservation of the periosteal layer and immediate reconstruction with a costal graft by an intraoral approach. Monitoring over the course of a year revealed spontaneous mandibular regeneration, and it allowed for a series of measurements of the graft to be made. During this follow-up period, the mandibular height increased from 41.5% to 75.2% (P=0.0008) of the height of the unaffected mandibular height, while the width grew from 34.4% to 82.8% (P=0.0078) of the width of the healthy side, thus demonstrating the importance of a conservative approach regarding the periosteum in such situations. The costal graft acted as a support for bone regeneration by immobilizing the remaining bone fragments and by preventing soft-tissue prolapse.
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关键词
Mandible,Child,Regeneration,Periosteum,Costal graft
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