The purpose of this study was to investigate the changes of the soft tissue profile in the nose following Le Fort I osteotomy in skeletal Class III patients.
The subjects were 30 females who underwent twojaw surgery to correct anterior reversed occlusion, and who were classified into three groups according to the directions of surgical displacement of the maxilla.
1. Advancement-Impaction group (n=11)
2. Advancement group (n=12)
3. Advancement-Downgraft group (n=7)
For each patient, lateral cephalograms, taken preoperatively and postoperatively, were traced and superimposed, and linear and angular measurements were obtained. And, alinasal width was measured on frontal facial photographs taken preoperatively and postoperatively. These data from the three groups were compared.
The results were as follows:
1. In the Advancement-Impaction group, Pronasale and Subnasale were displaced in the upward and forward direction after Le Fort I osteotomy.
2. In the Advancement group, Pronasale and Subnasale were displaced in the forward direction after surgery.
3. In the Advancement-Downgraft group, Pronasale was displaced in the forward direction, and Subnasale was displaced in the downward direction.
4. Alinasal width was increased in the three groups with advancement of the maxilla.
In conclusion, there were differences in the postoperative changes of the nose, with different movement of the maxilla.

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A clinical evaluation study was performed on, and a questionnaire was administered to, patients with jaw deformities in the Department of Orthodontics at Asahi University Hospital, from April 1990 to August 2000. The findings were as follows: 1) Numbers of new patients tended to increase annually, with a male: female ratio of 1: 1.5. 2) The age of new patients ranged from 7 to 42 years, with a mean of 19.9 years. 3) Regarding the geographical distribution of new patients, the majority were from Gifu prefecture (81.3%), followed by Aichi (10.0%) and Shiga prefectures (6.0%). 4) Mandibular prognathism was the most frequently (81.6%) observed type of jaw deformity. A rate of 67.5% of the patients demonstrated mandibular protrusion according to Slavicek's classification. and 88.3% were classified as skeletal Class III type according to Sugawara's classification. 5) Missing teeth except for congenital tooth absence or third molar were observed in 24.7% of patients. 6) Prevalence of TMJ disorders was 23.1%. 7) Items were investigated by inclusion in a questionnaire given to 70 patients with jaw deformities (males 15, females, 55; teenagers, 23; those in their 20s, 40; and those in their 30s, 7). Results were as follows: Patients and their families tended to display dentfacial deformity; about 40% of patients had some complex from childhood, and many patients tended to display some habits in childhood.

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We present a case of Crouzon disease treated by two-jaw surgery after a Le Fort III osteotomy and bone distraction.
The patient was a 17-year, 1-month-old male with facial malformation and malocclusion.
At the age of 17 years and 2 months, a Le Fort III osteotomy and bone distraction were performed for midface advancement. After this distraction procedure, orthodontic treatment began for secondary surgery to correct severe openbite, bimaxillary protrusion, and spaced arch.
After a partial glossectomy was carried out, preoperative orthodontic treatment commenced. At the age of 19 years and 7 months, a Le Fort I osteotomy and sagittal split ramus osteotomies (two-jaw surgery) were carried out.
After postoperative orthodontic treatment, occlusion and the facial profile were improved. Although some spaces developed, the occlusal results were almost preserved throughout the 17 month retention period.

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