［作者简介］　蒋少云(1972～)，女，湖南人，硕士，专业方向为牙体牙髓病学。
蒋少云（中山医科大学口腔医学院，　广东　广州　510120）
凌均启（中山医科大学口腔医学院，　广东　广州　510120）

参考文献

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