- Volume 6 Issue 1
The author had collected the full mouth stone model of 277 persons from 20 ages to 60 ages and studied the attrition pattern of posterior teeth paying attention to the teeth cusps on the stone model. All of the attrition patterns were classified by age, sex and analyzed. The results are followings : 1. Attrition patterns of posterior teeth were divided into 64 forms.(expept 3rd molar) 2. There was no significant difference between right & left. 3. Generally early attrition pattern of younger age and late attriction pattern of older age were more prominent in men being compared with sexual difference. 4. Being compared with age group, early attrition pattern showed decreasing tendency and late attrition pattern showed increasing tendency by aging.