中龋为病损发展到A:牙本质浅层 B:牙本质中层 C:牙本质深层 D:牙釉质全层 E:釉牙本质界

作者: tihaiku 人气: - 评论: 0
问题 中龋为病损发展到
选项 A:牙本质浅层 B:牙本质中层 C:牙本质深层 D:牙釉质全层 E:釉牙本质界
答案 A
解析 中龋时,病变的前沿位于牙本质浅层。牙本质因脱矿和有机质溶解而软化,随色素侵入而变色,同时出现主观症状。中龋时患者对冷热酸甜食物敏感,冷刺激尤为明显,但刺激去除后症状立即消失。

相关内容:中龋,病损发,本质,中层,深层,釉质,全层,釉牙

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