Comparison of maxillary stability after Le Fort I osteotomy for occlusal cant correction surgery and maxillary advanced surgery.
OBJECTIVE
To compare postoperative maxillary stability following Le Fort I osteotomy for the correction of occlusal cant as compared with conventional Le Fort I osteotomy for maxillary advancement.


METHODS
The subjects were 40 Japanese adults with jaw deformities. Of these, 20 underwent a Le Fort I osteotomy and intraoral vertical ramus osteotomy (IVRO) to correct asymmetric skeletal morphology and inclined occlusal cant. The other 20 patients underwent a Le Fort I osteotomy and sagittal split ramus osteotomy (SSRO) to advance the maxilla. Lateral and posteroanterior cephalograms were taken postoperatively and assessed statistically. Thereafter, the 2 groups were followed for time-course changes.


RESULTS
There was no significant difference between the 2 groups with regard to time-course changes during the immediate postoperative period.


CONCLUSIONS
This suggests that maxillary stability after Le Fort I osteotomy for cant correction does not differ from that after Le Fort I osteotomy for maxillary advancement.
Ueki
Koichiro
K
Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kanazawa University, Kanazawa, Japan. kueki@med.kanazawa-u.ac.jp <kueki@med.kanazawa-u.ac.jp>
Hashiba
Yukari
Y
Marukawa
Kohei
K
Yoshida
Kan
K
Shimizu
Chika
C
Nakagawa
Kiyomasa
K
Yamamoto
Etsuhide
E
D000293:Adolescent; D000328:Adult; D002508:Cephalometry / Q000379:methods; D006801:Humans; D008437:Maxilla / Q000002:abnormalities / Q000601:surgery*; D010027:Osteotomy / Q000379:methods; D019340:Osteotomy, Le Fort / Q000379:methods*; D011378:Prognathism / Q000601:surgery*; D063173:Retrognathia / Q000601:surgery*; D016896:Treatment Outcome