[Three-dimensional recording of changes in infant jaws with bilateral lip-maxilla-palate clefts with special reference to the results of preoperative orthodontic therapy].

Bilateral clefts are more difficult to treat than unilateral ones. The most important step during the orthopedic therapy is the retrusion of the premaxilla between the lateral segments of the maxilla. Thus the anterior cleft width, as opposed to the medial and posterior cleft width, did not become smaller. The position of premaxilla is mainly shown in the sagittal measurement values. The values of slope also changed in this sample. The maxilla became more flat. The preoperative orthodontic therapy can also be seen as advantageous in the case of bilateral clefts.