影响自锁托槽对上颌牙弓牙槽弓扩弓效果的相关因素
The Effects of Quick Self-ligating System on Enlarging Maxillary and Alveolar Arch
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摘要: [摘要]目的 通过模型、头颅定位侧位片,分析影响自锁托槽对上颌牙弓牙槽弓扩弓作用的相关因素,为非拔牙矫治方案的制定提供依据.方法 随机选取非拔牙60例使用Quick自锁托槽配合热激活镍钛丝整平排齐上颌牙列患者,采用咬合平面分析法判断整平排齐完成,通过测量矫治前后上颌模型及头颅侧位定位片对扩弓效果进行分析. 结果 矫治后,牙弓宽度的增加量与矫治前∠FMA、拥挤度大小及尖牙初始位置相关(P<0.05);矫治后,牙弓长度增加量与矫治前∠ANB、拥挤度大小、错■类型、尖牙初始位置、第2磨牙萌出情况相关(P<0.05). 结论 影响Quick自锁托槽非拔牙矫治扩弓效果的相关因素为拥挤度、∠FMA、∠ANB、∠U1-SN、∠U1-NA、错■类型、尖牙初始位置、第2磨牙萌出与否.
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关键词:
- [关键词]Quick自锁托槽 /
- 扩弓 /
- 相关因素
Abstract: [Abstract]Objective To analyze the effects of self-ligating bracket on enlarging the maxillary alveolar arch and to investigate the the non-extraction treatment programs. Methods All patients were used heat activated basic and precise theory for the orthodontist in order to make a plan fordeveloping nickel-titanium wire, then assessed by occlusalplane analysis method. The maxillary model andcephalometric radiographs were collected and measured before the treatment. The data of the resultswereanalyzed.Results After the treatment, the increase of the width of the dental arch was related to the ∠FMA, crowding degree and canines initial position. The increase of arch length was related to the ∠ANB, crowding degree,malocclusion classification, canines initial position andthe second molar eruption.Conclusion The essential factors include the crowding degree of arch, ∠FMA, ∠ANB, the angle of the anterior teeth,malocclusion classification,canines initial position andthe second molar eruptioncan affect the result of non-extraction quick self-ligating bracket appliance treatment on enlarging the maxillary alveolar. 期刊类型引用(8)
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