Using 316 plaster models of dental arches of Korean, (ages from 16 to 53) the auther observed the occlusion forms by the Welcker's classifying method.
The results were as follows:
Psalidontie type is most frequency seen, and its frequency is about 87% in male and about 91% in female.
The frequency of occlusal form was decreased in the order of Stegodontie, Lalidodontie and Opisthodontie. Type. There were seldom appeared Progenie and Hiatodontie type. |