34 恆牙上顎正中門齒之牙冠,切緣齒頸徑(incisocervically)之長度與近遠心徑之寬度比較,何者正確?
(A)切緣齒頸徑較大
(B)切緣齒頸徑較小
(C)近遠心徑較大
(D)近遠心徑與切緣齒頸徑相等
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統計: A(163), B(9), C(40), D(11), E(0) #1155968
統計: A(163), B(9), C(40), D(11), E(0) #1155968