颌

Objective To study the changes in soft tissue of facial profile after orthodontic treatment with four premolars extracted in bimaxillary protrusion in adolescents.

目的 研究青少年双颌突患者拔牙矫治前后侧面部软组织的改变方法对34例青少年双颌前突患者拔牙矫治前后的18项侧面部软组织指标进行对比，通过配对t 检验来分析治疗后侧面部软组织的改变。

Methods:Select 11～18 year old patients with bimaxillary protrusion 20 cases were randomly divided into two groups:TPA group,TPA＋Nance arch group.Two cases are the uprooting of four first premolars,the use of straight wire appliance technology,one step closure extraction gap analysis before and after treatment lateral skull X ray film and dental cast changes in the indicators.

选取11～18 岁双颌前突患者20 例，随机分为：TPA与TPA＋Nance弓两组；两组病例均拔除4个第一前磨牙，使用直丝弓矫治技术，一步法关闭拔牙间隙，分析治疗前后X线头颅侧位片及牙颌模型的各项指标变化。

The study suggests the mesiofacial type and average growth pattern for the females, while, the brachyfacial type and horizontal growth pattern for males.

女性颅颌纵向、横向深度均小于男性，女性具有突颌趋势，下颌倾斜度女性大于男性，下颌生长趋势女性为平均生长型，中间面型，男性为水平生长型，短面型。

Landmarks of Cephalogram is the important basis to diagnose and treat patients with facial skeletal and dental abnormalities.

头影图像的标志点是正颌外科中用来诊断和治疗牙颌面畸形患者的重要依据，本文运用图像处理及人工智能技术，介绍了一种自动提取头影图像中软硬组织标志点的方法。

Three-dimensional CT images were obtained from circumgyration and incision at will.

电子束CT在颌面部骨折的诊治中有很大的应用价值，二维CT和三维CT互相补充是诊断颌面部骨折的最佳方法。

Results: The whole craniofacial frame and its surface could be observed clearly in reconstructed 3-D Model.

结果：颅颌面三维可视化模型能够清晰地显示颅颌面复杂结构完整的形态，清楚的表面。

Shanghai Erkang times craniomaxillary excellent (3D digital reconstruction of cranio-mandibular) Shandong Agents (2) Tianjinskull skull plate lock micro-plate series.

1上海倍尔康颅颌优(数字化3D颅颌骨重建)山东地区代理商(2)天津康利民颅骨板颅骨锁微型接骨板系列。

Methods Seven patients with fractures of the jaw had procedures performed to recover the occlusal relationship by using an edgewise - appliance as a dental arch epithesis.

方法利用方丝弓矫治器作为牙弓夹板对颌骨外伤患者进行术中颌关系复位、术后颁关系调整，观察其疗效。

Meta-analysis can prove the curative effect of extraoral support-type distraction on the craniofacial deformity secondary to cleft lip and palate.

此次Meta分析在一定程度上证实了口外支持式前牵张对唇腭裂继发颌骨畸形修复疗效，可为临床医师选择矫治颌骨畸形术式提供一定的指导。

The results are as follows:(1) With the imposing of orthopedic force of simulating maxillary protraction on maxilla, in the sagittal direction, the maxillary complex of the SD Rats in experimental group grows more quickly than that in two control groups, and the extent of the maxillary complex increases more evidently. The maxillary complex displays anti-clockwise forward and upward rotation.(2) With the imposing of orthopedic force on maxilla, upper incisors exhibit labial-inclined, labioclination of lower incisors changes insignificantly, and the shape and the dimension of skull are not affected significantly.(3) The expression of TGF-3 , in frontomaxillary sutures and palatomaxillary sutures shows different intensity in different extent of time. But The expression of TGF-{3, in experimental group is more intensive than that in two control groups, and that in operated control group and natural growth group has no significant difference.

结果如下：在模拟上颌前牵引矫形力作用下，(1)生长发育期大鼠上颌复合体在矢状方向生长加快，长度明显增加，并表现出向前向上的逆时针旋转；(2)上切牙唇倾，下切牙的唇倾度没有明显变化，颅脑的形态与大小不受影响；(3)额颌缝和腭颌缝中TGF-β_1的表达，同一时段实验加力组要强于手术对照组与自然生长组，而手术对照组与自然生长组之间无显著性差异。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。