Abstract
26 unilateral cleft palate patients received an autogenous bicortical chin bone graft for early reconstruction of the alveolar process. In the evaluation of the donor site, 4% of the anterior teeth showed a negative pulpal sensibility, less than 1% a peri-apical granuloma and 12% pulp canal obliteration. The tooth buds of the canines showed developmental disturbances in 6%. Exposure of unerupted canines should be avoided, and a 5 mm safety margin is advised. Based on its architecture, topographic accessibility, minimal post-operative morbidity and absence of visible scars, the chin can be considered to be a very useful donor site in bone grafting procedures.
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