[Orthodontic treatment in a cleft palate-cleft lip case with severe maxillary collapse].

The cleft lip and palate cases are the most frequently seen congenital deformities. Retardation of the maxillary development and collapse are the most significant characteristics in these cases. It is aimed to correct the functions like mastication, deglutition and speech which were disturbed due to anatomic deficiency and to obtain an acceptable occlusion and esthetics, by means of the therapy. As much as the preoperative orthopedic procedures applied just after the birth, the orthopedic and orthodontic appliances used in mixed and permanent dentition periods affect the prognosis in these cases. The purpose of the treatment in permanent dentition is to correct the malocclusion and to prepare the dentition to prosthetic restorations. In this article the orthodontic treatment of a case in permanent dentition, with cleft palate and lip characterized with severe maxillary collapse will be presented.