安氏II1牙合下颌各牙根尖主应力值均略大于正常牙合，且最高应力值由第一磨牙近中根尖处移至最后一个磨牙根尖处。
The highest value of all apical areas were in the last molar in Angle II1 model instead of medial root of the first molar in normal occlusion.
第一和第二主应力量值比较高，而且两者量值也比较接近。
The magnitudes of the maximum and the intermediate principal stress are high; and both of them are very close.
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