Outcome Following Secondary Autogenous Bone Grafting Before and After Canine Eruption in Patients With Unilateral Cleft Lip and Palate

Objective: To determine whether the long axis and eruption of the cleft-adjacent canine affect postoperative outcomes in secondary autogenous bone grafting (SABG). Design: Retrospective longitudinal study. Setting: Multidisciplinary long-term follow-up at Kagoshima University Hospital. Subjects and Methods: Twenty-five patients with complete unilateral cleft lip and palate (11 male, 14 female) were compared between unerupted and erupted groups for canine developmental stage, canine angle, and vertical height at bone grafting at 1 year and more than 4 years after SABG. The interalveolar septal heights at 1 and more than 4 years were evaluated by orthopantomograms. Results: All patients in both groups accomplished dental rehabilitation with orthodontic treatment alone without prosthetic appliances. Although the rate of an acceptable bone bridge tended to be lower in the unerupted group (62.5%) than in the erupted group (88.8%), the difference was not significant (P = .158). The canine angle at bone grafting...