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Chinese Journal of Traumatology ; (6): 30-33, 2000.
Article in English | WPRIM | ID: wpr-268487

ABSTRACT

OBJECTIVE: To evaluate the feasibility of transplanting composite mandibular allografts to repair large mandibular defects. METHODS: Three composite mandibular trans-plantation models were established. The first model consisted of hemimandible with the attached teeth, muscle and skin,and oral mucosa. The second model was transplanted in the same way with the first one excluding oral mucosa and some teeth, and third one excluding the oral mucosa and all dental crowns. Fourteen transplanting operations were performed in canines. Cyclosporine A and methylprednisone were given for immunosuppression. RESULTS: The composite mandibular organs had an effective and closed return circuit. Transplantation of vascularized allograft of mandibular compound organs was feasible. Two longest time survivors of 67 d and 76 d were in the third model group. Cyclosporine A was successful in suppressing rejection of transplanted composite allograft and prolonging survival time of transplantation models. CONCLUSIONS: The composite mandibular allografts were available with large block of living composite tissue, and helpful in restoration of appearance and function for severe mandibular defects.

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