Soft tissue changes after double jaw rotation surgery in skeletal class III malocclusion.
- Author:
Mi Hyang JEONG
1
;
Jeong Ho CHOI
;
Byuong Ho KIM
;
Seong Gon KIM
;
Dong Seok NAHM
Author Information
1. Department of Orthodontics, College of Dentistry, Seoul National University, Korea.
- Publication Type:Original Article
- Keywords:
Double jaw rotation surgery;
Skeletal III malocclusion;
Soft tissue changes
- MeSH:
Adult;
Humans;
Jaw*;
Lip;
Malocclusion*;
Osteotomy;
Vertical Dimension
- From:Journal of the Korean Association of Oral and Maxillofacial Surgeons
2006;32(6):559-565
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The aim of this study was to evaluate the amount and interrelationship of the soft and hard tissue changes after simultaneous maxillary clockwise rotation and mandibular setback surgery in skeletal class III malocclusion. The sample comprised of 16 adult patients who had anteroposterior skeletal discrepancy. These patients had received presurgical orthodontic treatment and surgical treatment which consisted of Le fort I Osteotomy and bilateral saggital split ramus osteotomy. The presurgical (T1) and postsurgical (T2) lateral cephalograms were evaluated. The computerized statistical analysis was carried out with SPSS/PC program. The results demonstrated a decrease in the vertical dimension in the soft and hard tissue. The nasolabial angle was increased and the mentolabial angle was decreased. The results showed also many statistically significant correlations(p<0.05). The lower lip closely followed the skeletal movement of the B- point in the horizontal plane. The double jaw rotation surgery can afford a good solution to solve the problems of class III malocclusion cases.
