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【单选题】
牙髓增龄性变化,表现在牙髓细胞中,其叙述错误的的是A.
牙髓组织中的细胞成分减少
B.
成牙本质细胞由扁平状变为高柱状
C.
成牙本质细胞凋亡
D.
成纤维细胞减少，纤维数量增多
E.
血管出现局部炎症反应
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