A roentgenocephalometric study on the depth of the antegonial notch and the craniofacial morphology in Class III malocclusion.
- Author:
Hyung Soo KIM
1
;
Dong Seok NAHM
Author Information
1. Department of Orthodontics, College of Dentistry, Seoul National University, Korea.
- Publication Type:Original Article
- MeSH:
Child;
Humans;
Malocclusion*;
Skull Base
- From:Korean Journal of Orthodontics
1989;19(1):123-135
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
This study was undertaken to investigate the relationship between the depth of antegonial notch and the craniofacial morphology, and to predict the mandibular growth direction & potential class III malocclusion. The computerized analyses were carried out on longitudinal lateral cephalometric radiographs of 50 children with class III malocclusion, divided into two groups; 30 deep notch subjects (more than 2.6mm) and 20 shallow notch subjects (less than 1.5mm). The conclusions were as follows: 1. The mandibular growth direction in deep notch group was more vertically directed than in shallow notch group. 2. Deep notch group had shorter anterior & posterior cranial base than shallow notch group. 3. There was not significant difference between deep & shallow notch groups in the amount of mandibular growth during treatment period. 4. Notch depth increased in both deep & shallow notch groups during treatment period.
