Orthodontic treatment of the primary dentition for patients with clefts of lip, alveolus, and palate following presurgical orthodontics, labioplasty and palatoplasty.

In spite of presurgical orthodontic treatment, after a labio- and palatoplasty in continuous uni- and bilateral clefts of the lip, alveolus bone, and palate, anomalies of the dental arch, occlusion, jaw size and position can appear. This is favoured in cases without adequate retention of the upper dental arch through intercuspidation of the lower dental arch. These anomalies should be treated. The treatment of the malposition of the primary teeth is not of concern, but the termination of the forced sagittal and transverse mandibular displacements and thereby the coordination of the growth of the upper and lower jaw, which depend on each other.