目的：探讨片段弓技术联合部种植支抗压低上颌磨牙，为下颌牙缺失的种植修复提供足够的合间距离。
Objective: To evaluate the effect of segmental arch technique and implant reinforcing anchorage on depressing the elongated opposed teeth for preparing enough space for mandibular dental implant.
下颌骨的向前生长和过度扩弓是导致下前牙拥挤复发的主要原因之一。
Mandibular forward growth and excess expansion of the dental arches were one of main causes of mandibular anterior crowding relapse.
对25例下牙弓狭窄患者的扩弓矫治表明，下颌舌侧半固定扩弓矫治器的扩弓效果良好。
Dental arch expansion appliance for 25 patients with mandibular arch stenosis showed that semi-fixed mandibular lingual arch expansion had good effect and could be used to expand mandibular arch.
方法：对8例下颌磨牙颊向或舌向倾斜错位的患者，采用简易半固定舌弓配合方丝弓矫治技术在矫治初期进行矫治。
METHODS: Using a simple semi-fixed lingual arch combined with the edgewise technology to correct 8 cases with linguoclination or buccoclination of the mandibular molars.
方法在后牙用片段弓正畸技术联合颌间牵引治疗31例下颌角骨折的患者并观察疗效。
Methods with fragments of the back teeth bow orthodontic traction treatment between technical joint jaws in 31 cases of patients with mandibular Angle fracture and watch curative effect.
测量两组尖牙牙弓宽度、磨牙牙弓宽度及磨牙牙槽弓宽度，并计算上、下颌对应的牙弓、牙槽弓宽度差。
The inter-canine, inter-molar and alveolar widths were measured and the differences between maxillary and mandible width calculated.
结果小型猪主要咀嚼肌包括嚼肌、颞肌、翼内肌、翼外肌及颧弓下颌肌；
Results The main masticatory muscles of miniature pigs include masseter muscle, temptory muscle, lateral pterygoid muscle, medial pterygoid muscle and zygomaticomandibular muscle.
目的：对多曲方丝弓技术中打开咬合所产生的力学系统进行有限元分析，了解多曲方丝弓打开咬合时下颌中切牙牙周膜应力分布情况。
Objective:The purpose of this article is to study the force system that produced by multi-loop edgewise arch wire while opening the bite.
其主要临床特征为智力低下、特殊的外貌特征（包括长脸、大耳廓、下颌突出、巨头、腭弓高、大睾丸等）、行为及认知障碍、多动、注意力难集中以及孤独、自闭等症状。
FXS is characterized by X-linked mental retardation with additional features such as a long face with large protruding ears, macroorchidism, and eye-gaze avoidance etc.
二是利用上下颌的正畸弓丝移动上下牙齿向颊、舌方向；
The second method is to move upper and lower teeth by archwire lingually and bucally.
二是利用上下颌的正畸弓丝移动上下牙齿向颊、舌方向；
The second method is to move upper and lower teeth by archwire lingually and bucally.
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