结果不对称畸形上牙弓双侧狭窄；
Results Upper arch is narrower than normal in craniofacial asymmetry.
磨牙区牙弓宽度差异无显著性。
No significant difference was found for the intermolar width.
牙弓的扩大主要是牙弓宽度的增加。
The expansion of the arch was mainly caused by the mcrease of arch width.
比较治疗前后牙弓宽度变化。
牙弓每闭合一次，分析就会更为精确。
Each time the dental arches are closed, the analysis is refined.
一个完整的牙列建议，优先给予齐牙弓。
A complete dentition is recommended, priority being given to the homogeneous dental arches.
结论建立下牙弓后段可用间隙预测方程。
Conclusion the equations predicting the available space of lower posterior arch were established.
目的研究下牙弓后段可用间隙生长变化特点。
Objective To study the growth changes of available space of lower posterior arch.
我们提出了一种患者个性化牙弓自动检测方法。
This paper presents an automated method for detecting the dental arch form.
结论：上、下牙弓宽度不调与牙周病有密切关系。
CONCLUSION: the dis-coordination of the dental arch width in maxilla and mandible has an affinity with periodontal disease.
上牙弓发育较早，但下牙弓发育速度快于上牙弓。
The development of the upper dental arch was earlier, but the down dental arch faster.
牙弓形状的检测对正畸诊断和治疗具有重要的意义。
The shape of dental arch for orthodontic diagnosis and treatment is of great significance.
目的：研究拔牙矫治对牙弓宽度和基骨宽度的影响。
Objective: To investigate the effects of tooth extraction on dental arch width and alveolar bone width.
结论托槽代替牙弓夹板治疗儿童颌骨骨折疗效较佳。
Conclusion The bracket instead of splint might be better for jaw fracture of children.
结论：口呼吸可以引起儿童牙弓、基骨形态的改变。
Conclusion: Oral breathing may lead to morphological changes in dental arch and base bone in children.
目的观察直丝弓矫治器对双牙弓前突病例的矫治效果。
Objective To observe the results of treatment with Straight Wire Appliance(SWA) in bimavillary alarch protrusion cases.
结论：面部不对称主要表现在面下1/ 3及牙弓区；
Conclusion:The asymmetries mainly involve in the 1/3 lower faces and dental arches;
经治疗和保持后，上下牙弓宽度和长度并非一定会复发。
Not all of dental arch width and length will relapse after retention.
结论：RE主要增加前段牙弓宽度，以中切牙间距离最明显。
Conclusions: RE expanded anterior arch width especially the distance of mid-anterior.
下牙弓变化中，第二双尖牙间和磨牙间宽度增加有显著性差异。
In addition, the changes of width between second bicuspid and mandibular molars showed statistical significances.
②肌位牙位不调与否的两组间在上下牙弓后段宽度上存在差异；
Significant difference of the posterior arch-widths was observed between the group with and without ICP-MCP discrepancy.
目的作者对骨性下颌前突伴偏斜患者的牙弓和牙齿代偿现象进行研究。
Objective To investigate the compensation of dental arch and teeth in patients with skeletal protrusion and deviation of mandible.
然后基于规则筛选出关键特征点集，通过两步最小二乘法拟合牙弓线。
Thirdly, the feature point set is filtered by the rule and two-step curve fitting method is used to obtain the dental arch form.
目的：将传统口内牙弓夹板石膏帽固定法加以改进，治疗上颌骨骨折。
Objective: a modification of the traditional arch wire splint craniomandibular elastic traction in maxilla fracture reduction, observation the effectiveness.
结果治疗后牙弓、基骨的宽度比治疗前增加，统计学分析有显著性差异。
Result The increase of width of dental arch and basal bone has statistically significant difference.
一些矫正医师只使用一个牙弓形态在3个不同大小：小型，中型和大型。
Some orthodontists use only one arch form in 3 different sizes: small, medium and large.
人体尖牙在颌面、牙弓中占重要位置，对维持人颌面的正常形态、功能起重要作用。
Canine teeth play an important role in maintaining normal appearance and function of maxillofacial region. Ectopic impacted canine teeth seriously affect the patient's as well as oral functions.
在SD大鼠口腔内建立正畸牙齿移动模型，以左侧上颌牙弓为实验侧，右侧为对照侧。
Establishing the orthodontic tooth movement model in SD rat oral. The experimental side of the left maxillary arch, the right to control side.
在SD大鼠口腔内建立正畸牙齿移动模型，以左侧上颌牙弓为实验侧，右侧为对照侧。
Establishing the orthodontic tooth movement model in SD rat oral. The experimental side of the left maxillary arch, the right to control side.
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