根据G. V. Black的窝洞分类方法,下列哪项是正确的A.Ⅰ类洞都是单面洞B.Ⅱ类洞都是复面洞C.Ⅰ类洞是后牙窝沟点隙龋坏所制备的...

作者: rantiku 人气: - 评论: 0
问题 根据G. V. Black的窝洞分类方法,下列哪项是正确的 A.Ⅰ类洞都是单面洞 B.Ⅱ类洞都是复面洞 C.Ⅰ类洞是后牙窝沟点隙龋坏所制备的 洞形 D.Ⅲ类洞是前牙邻面未损伤切角的龋坏 所制备的洞形 E. Ⅴ类洞是后牙唇(颊)舌(腭)面近龈1/3处破坏所制备的洞形
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答案 D
解析

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