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                400-609-1580
                牙科排龈材料产品注册单元应如何划分?

                  牙科排龈材料是口腔治疗辅助材料的一种,用于在牙体预备、取印模或粘固牙冠时排开牙龈。主要化学成分不同的产品应划分为不同的注册单元。性状不同导致临床应用技术不同的产品应划分为不同的注册单元,如排龈线与排龈膏应为不同注册单元。含血管收缩或止血功能与不含血管收缩或止血功能的产品应为不同注册单元。

                  审评四部供稿

                  2018-09-21 10:00