A longitudinal study on the interrelationship between the growth change of the gonial angle and IMPA.
- Author:
Chin Su CHUNG
1
;
Young Kyu RYU
;
Byung Wha SOHN
;
Young Joon KIM
Author Information
1. Department of Orthodontics, College of Dentistry, Yonsei University, Korea.
- Publication Type:Original Article
- Keywords:
Gonial angle;
IMPA;
Interincisal angle;
Gonial angle;
IMPA;
Interincisal angle
- MeSH:
Adolescent;
Aging;
Child;
Female;
Growth and Development;
Humans;
Longitudinal Studies*;
Male
- From:Korean Journal of Orthodontics
1999;29(4):435-444
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
This study was undertaken to investigate the growth change of gonial angle and interrelationship between the growth change of gonial angle and IMPA in the longitudinal data from 7 years to 15 years. By analyzing the serial lateral cephalograms of 15 males and 18 females of 7 years old to 15 years old who had no abnomality in growth and development and no history of orthodontic treatment, the following conclusion were obtained. 1. Gonial angle gradually decreased with aging in 25 children and in 9 children increased or maintained. 2. There was a tendency that children who decreased gonial angle with aging showed gradual increase of IMPA and children who increased of maintained gonial angle with aging showed decrease of IMPA 3. There was a tendency that regardless of the change of gonial angle, interincisal angle decreased with aging.
