Gnathometric and roentgenocephalometric studies helped reveal the pathogenesis of abnormal maxillary growth in children with bilateral clefts of the upper lip and palate. In order to improve the results of treatment of such patients, the authors propose a method of secondary early osteoplasty of the alveolar process, which may be carried out simultaneously with uranoplasty or separately. Thirty-six patients were operated on using this technique. Complete repair of the alveolar process was attained in 58.3%, partial in 30.6% patients.

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