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.

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。

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Results: After a mean duration of follow-up of forty-one months (minimum, two years), the medial clear space, talocrural angle, and talar tilt had improved.

结果：经过平均41个月（最少2年）的随访期后，内距胫间隙、距胫腓角和距骨倾斜度获得改善。

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Results: After a mean duration of follow-up of forty-one months (minimum, two years), the medial clear space, talocrural angle, and talar tilt had improved.

结果：经过平均41个月（最少2年）的随访期后，内距胫间隙、距胫腓角和距骨倾斜度获得改善。

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