12 下列圖形為一典型牙齒移動圖形，每天牙齒移動速率（mm/day）與牙齒受到持續性（125g）力量之天數關係圖。下圖中，牙齒移動速率突然降低的最可能原因是： (A)牙周膜突然被壓迫 (B)牙周膜透明

問題詳情

12 下列圖形為一典型牙齒移動圖形，每天牙齒移動速率（mm/day）與牙齒受到持續性（125g）力量之天數關係圖。下圖中，牙齒移動速率突然降低的最可能原因是：

(A)牙周膜突然被壓迫
(B)牙周膜透明變性（hyalinization）之形成
(C)齒槽骨變形斷裂
(D)前緣吸收（frontal resorption）發生

參考答案

答案：B
難度：適中0.6
統計：A(0),B(6),C(0),D(0),E(0)

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