Compensatory changes of occlusal plane angles in relation to skeletal factors.
- Author:
Hyun Sook KIM
1
;
Seon Young KIM
;
In Seong LEE
;
Sang Cheol KIM
Author Information
1. Department of Orthodontics, School of Dentistry, Wonkwang University, Korea. sangkim@wonkwang.ac.kr
- Publication Type:Original Article
- Keywords:
Compensatory change;
Occlusal plane;
Skeletal factor
- MeSH:
Adult;
Dental Occlusion*;
Humans;
Malocclusion
- From:Korean Journal of Orthodontics
2004;34(3):229-240
- CountryRepublic of Korea
- Language:English
-
Abstract:
The purpose of this study was to evaluate the compensatory changes of occlusal plane angle in relation to skeletal factors. Lateral cephalograms of 61 adults with normal occlusion and 92 adults with skeletal malocclusions were traced and measured to analyze skeletal factors and occlusal plane angles. In terms of horizontal relationships, the normal occlusion group and malocclusion group were classified into subgroups of skeletal Classes I, II, and III, while in terms of vertical relationships, each group was also classified into horizontal, average, and vertical subgroups. Some measurements were evaluated statistically by ANOVA and Post Hoc, and the others were reviewed by Paired t-tests. In this study, only the occlusal plane angle to AB plane did not show a significant difference between the normal occlusion group and malocclusion group. After treatment, the occlusal plane angle to the AB plane of the malocclusion group was approximated to that of normal occlusion group. The LOP to AB plane angle of the normal occlusion group was 91.7 in skeletal Class I, 88.8 in skeletal Class II, and 93.5 in skeletal Class III. This study was done to assess the treatment changes of the occlusal plane in the malocclusion group, and to draw a comparison with the normal occlusion group in order to present a reference to establish a new occlusal plane inclination.
