Relationships between frontal and leteral pattern of craniofacial morphology

Abstract

The purpose of this study was to clarify the relationships between maxillofacial asymmetry and anteroposterior skeletal pattern, using lateral and anteroposterior cephalometrics. The results were as follows : 1. As the degree of the chin displacement became larger, mid face, lower face and gonial angle were upslanted on the deviation side. 2. As ANB angle became smaller, the degree of the chin displacement was larger. 3. There was a significant difference between skeletal Class III and Class I, and between Class III and Class II, in the degree of the chin displacement. These results demonstrate that there is a close relationship between the displacement of the chin and anteroposterior skeletal pattern, and that cases with skeletal Class IIIn showed more prominent maxillofacial asymmetry, compared with those of cases with skeletal Class I and Class II.