AIM: To observe the cleaning effect of calcium hydroxide on root canal wall.
目的：观察氢氧化钙糊剂对根管壁的清洁作用。
Objective To investigate the effect of microwave on dentin of root canal wall.
目的了解微波对根管壁牙本质产生何种影响及其可能导致的后果。
Objective To measure the thickness of the wall of root canal and root canal area in different cross sections of maxillary central incisors.
目的了解正常上颌中切牙牙根不同截面根管周壁厚度及根管面积和形态。
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