【joe極白】評論

There is a reasonably good correlation between the size of the erupted permanent incisors and the unerupted canines and premolars. These data have been tabulated for white American children by Moyers (Table 6-6). To utilize the Moyers prediction tables, the mesiodistal width of the lower incisors is measured and this number is used to predict the size of both the lower and upper unerupted canines and premolars. The size of the lower incisors correlates better with the size of the upper canines and premolars than does the size of the upper incisors, because upper lateral incisors are extremely ...