Objective Use FEM to observe the relationship between the change of alveolar ridges height and the stress change of wall of root canal.
目的应用有限元法观察牙槽嵴高度改变与根管管壁应力变化的关系。
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。
Conclusion the change of alveolar ridge's height will affect the stress change of wall of root canal, and which is in an inverse proportion.
结论牙槽嵴高度的改变，将引起根管壁应力的变化，两者间呈反比例关系。
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。
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。
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