Objective: To observe the difference of two methods by using Australian wires with vertival loops and using Niti wires to treat upper anterior teeth with severely lingually tipping.
目的：了解使用垂直曲的澳丝与镍钛丝在矫正上前牙严重舌倾的区别。
Results Statistically significant difference was detected among two groups in the upper first molar mesial moving, no significant difference was noted in the upper anterior teeth palatal moving.
结果两组上颌第一磨牙近中移动量差异有显著性，而两组上颌前牙腭向位移量差异无显著性。
Objective To discuss the curative effect of upper jaw lip-side expansion for anterior teeth.
目的探讨上颌唇向扩弓活动矫治器对上前牙拥挤的治疗效果。
Objective To discuss the curative effect of upper jaw lip-side expansion for anterior teeth.
目的探讨上颌唇向扩弓活动矫治器对上前牙拥挤的治疗效果。
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