Orthodontic treatment and Cleidocranial Dysostosis: Two cases report

Aim: the aim of this work is to present the orthodontic treatment of two patients affected by cleidocranial dysostosis who pretend its typical features: micromaxillia combined with the impaction of all the permanent teeth. The orthodontic treatment aimed at recovering the largest number of the impacted teeth while providing a better oral function and occlusion. Methods: both patients came to our attention in the early mixed dentition period and showed reduced palatal diameter, family history of impacted permanent teeth. Both patients were first treated with Rapid Palatal Expander (RPE) and then they underwent the sequential extraction of the deciduous teeth combined with the orthodontic/surgical recovery of the permanent ones. The orthodontic treatment was long and it ended with multibracket fixed appliance and the recovery of the impacted upper canines. At the end of the orthodontic treatment, both patients received a fixed retainer in the lower jaw and a removable one in the upper. Results: permanent teeth occlusion as well as tooth alignment and oral function was achieved with multidisciplinary treatment (orthopedic and orthodontic treatment and surgical impacted permanent teeth exposure). Conclusions: taking into account clinical history and familiarity, the treatment achieved good orthodontic results, not only from an aesthetic point of view but also from a functional one, considering the initial condition of the patient. Compliance of the patient in a long time orthopedic and orthodontic treatment was crucial.