皮質骨付海綿骨ブロックによる顎裂部自家骨移植についての臨床的検討

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  • Clinical analysis of autogenous bone grafts with cortico-cancellous bone blocks in the alveolar cleft of patients with cleft lip and palate

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We clinically analyzed autogenous bone grafts placed in the alveolar clefts of patients with cleft lip and palate. The subjects were 26 patients, 18 males and 8 females. At the time of bone grafting most patients ranged in age from 10 to 16 years. Twenty patients had cleft lip and palate, and 6 had cleft lip and alveolus. Fifteen cases were unilateral, and 11 were bilateral. The width of the alveolar clefts ranged from 3 to 15mm at the alveolar crest and from 6 to 18mm at the nasal floor. Maxillary expansion had been carried out before bone grafting in 9 patients. Cortico-cancellous bone harvested from the chin in 15 patients and from the iliac crest in 11 patients was grafted as a block in all patients and fixed with microplates. Clinically significant bone bridge formation was observed in 25 patients, but the alveolar bone height of the grafted portion was not satisfactory in all patients. Dental implants were placed into the grafted region in 4 patients.

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