Bone changes on lateral cephalograms and CBCT during treatment of maxillary narrowing using palatal osteodistraction with bone-anchored appliances

The most common problem observed in surgical-orthodontic and orthodontic treatment of facial and occlusal defects involves abnormal transverse dimension of the maxilla. (Bell and Epker 1976). Symptoms of such a deformation include posterior crossbite, high palate, crowding and inclination of teeth in the anterior section. This defect may be present as an isolated defect or combined with other facial and occlusal class II or III deformations(Betts et al. 1995).

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