可使牙齿色斑面积减少，染色程度减轻的牙膏成分是A.氯己定 B.硝酸钾 C.氧化剂+高清洁二氧化硅 D.氟化钠+单氟磷酸钠 E.三氯羟苯醚+PVM/...

作者: tihaiku 人气: - 评论: 0

问题可使牙齿色斑面积减少，染色程度减轻的牙膏成分是

选项 A.氯己定 B.硝酸钾 C.氧化剂+高清洁二氧化硅 D.氟化钠+单氟磷酸钠 E.三氯羟苯醚+PVM/MA共聚体+枸橼酸锌

答案 C

解析

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