Noboru Hayashi

A Case of Surgical Orthodontic Treatment of Deformed Healing with the Widening Upper Dental Arch by Trauma

In this case, widening and scissors bite of left upper dental arch was observed as a complication after fracture. Le Fort I type osteotomy of the left maxilla and palatine suture osteotomy were performed and the constriction of the upper dental arch by using a rapid maxillary contraction appliance was rendered. As compared with before the treatment, 2.0mm reduction of maxillary arch on P-A cephalogram, and 3.3mm reduction of the distance of central incisors, 3.9mm reduction of the distance of first bicuspids and 2.6mm reduction of the distance of first molars were observed in the model. Following treatment, the occlusions and aesthetic feeling were recovered satisfactorily in a short time.