비율이 -0.73, lower gonial angle과 SN-MP가 0.87, lower gonial angle과 PP-MP가 0.83, lower gonial angle과 OP-MP가 0.77로 비교적 높게 나타났다.
8. gonial angle이 증가함에 따라 SN-MP, OP-MP, PP-MP가 증가했는데 이는 upper gonial angle보다는 lower gonial angle에 따라 크게 좌우됨을 알 수 있었다.
[영문]In order to know the variation of the associated craniofacial skeletal angle and linear distance according to the change of gonial angle, the roentgenographic cephalo metric study was undertaken in Korean normal cephalmotric analysis and eletric computer.
The following results was optained.
1) The size of gonial angle is mainly depend on the lower gonial angle. The mean of upper gonial gngle is almost same in normal occlusion group and malocclusion group.
2) It was resulted on normal group and malocclnsion group by F test that the number of parameters that were significant at 5% level of confidence were 14 parameters in normal occlusion group and 22 parameters in malocclusion group.
3) Ramus height and mandibular body length increased and facial ratio is decreased as gonial angle decreased.
4) MP-T, overbite depth and Y-axis angle is not related to gonial angle in normal occlusion group, but in moloclusion group, as gonial angle decreased, MP-T and overbite depth is increase and Y-axis angle is decreased.
5) SN-MP, OP-MP, PP-MP is increased as gonial anglel increased. it was mainly depend on the lower gonial angle.