下颌骨

Others were fixed with titanium plates as control. all the rabbits were sacrificed at 1,2,4,8 weeks after operation. gross observation, radiographical, histologic and bony mechanics examinations of the fracture site were carried out after rabbits were sacrificed.

分别采用pldla接骨材料和纯钛接骨材料行兔下颌骨骨折内固定术，术后1、2、4、8周进行大体标本、影像学、骨生物力学测试和组织学检查。

The results of Pancherz analysis shows that the correction of negative overjet is mainly due to the advancement of maxilla and upper incisors. But the position changes of mandible and lower incisors imply that severe maxillary hypoplasia with high angle and/or mandibular retrusion is contraindicated by the method conducted in this study.

头影测量侧位片Pancherz分析法的分析结果表明，本研究中上颌后缩患者反覆盖的矫治主要由上颌骨、上切牙的前移引起的，但下颌骨和下切牙位置的变化提示适应症的选择应注意避免上颌后缩同时伴有高下颌角和／或下颌后缩的患者。

Its mechanism is downward and backward rotation of the mandible, the retrusion of the lower incisors, the protrusion of the upper incisors and the forward growth of maxilla.

FR-Ⅲ是矫治替牙期前牙反的理想方法之一，其机理是下颌骨向下、向后旋转，舌倾下切牙，唇倾上前牙，促进上颌骨向前生长。

Functional appliance is considered the most effective device to treat mandible retrusion in nonage. By appling orthopedic force, it stimulates mandible growth and improves bimaxillary relationship.

应用功能矫治器施以矫形力促进下颌生长发育，改善上下颌骨间关系及侧貌，被认为是早期矫治下颌后缩最直接有效的途径。

Objective:To investigate the feasibility of constructing the three-dimensional finite element model of temporomandibular joint on the basis of magnetic resonance images.

目的：探讨在颞下颌关节区及下颌骨磁共振影像的基础上建立颞下颌关节三维有限元模型的可行性，观察对关节盘建模的效果。

Objective: To establish the three-dimensional finite element model of mandible and temporomandibular joint,which has higher similarity to the real TMJ in vivo.

目的：建立生物相似性和力学相似性都较高的、包括下颌骨和颞下颌关节的计算机三维有限元模型。

The samples were prepared and stained with modified Mallory's trichrome staining and observed under light microscope.

分离含有牙胚的上、下颌骨，固定脱钙，25 g/L火棉胶、石蜡双重包埋，常规组织学切片，分别用改良Mallory's三色和HE染色，镜下观察。

ABSTRACT A Clinical and Experimental Study on Trifocal Distraction Osteogenesis for Reconstruction of Segmental Mandibular Defects

探讨三焦点牵引成骨技术在下颌骨骨段缺损功能性重建中的应用，研究三焦点牵引成骨的成骨规律、特点和重建骨种植义齿修复的可行性。

Before the internal trifocal distractor was embedded, the remain dentition was performed inter maxilla fixation in order to keep the occlusion of the normal side.

分别在下颌骨缺损区两骨断端采用截骨术制作2块宽约1.5cm、高约3cm的骨牵引传送盘，最大限度保护传送盘骨块的软组织附着。

The close relationship etween intracapsular condylar fractures and posttraumatic TMJA has been howed in lots of articles. Posttraumatic TMJA mostly happens when seriously displaced fractures have occured together with damaged articular acet, increasing of mandible width and mandibular hypomobility.

研究表明，髁突囊内骨折与之关系密切，特别是当骨折明显移位合并关节面严重损伤、关节盘移位以及下颌骨宽度增加和活动度减小等因素时，更加好发。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。