下颌骨

Van Beek's activator appliance could restrict the growth of maxilla and stimulate the growth of mandible in horizontal direction and control jaws posteroinferior rotation , lower front teeth and elongate mandibular molar in vertical direction.

Beek功能矫正器能在水平方向产生抑制上颌骨生长，刺激下颌骨生长；在垂直方向控制上下颌骨后下旋转，压低上下前牙及伸长下磨牙的效果。

AIM: To investigate the regularly of stress distribution and the areas of stress concentration in different structures of the mandible subjected to impact loading so as to provide references for studying biodynamics of the mandibularimpact injury.

目的：探讨撞击载荷作用时下颌骨不同结构的应力分布规律、应力集中区域，为研究下颌骨撞击损伤的生物力学机制提供参考依据。

AIM: To investigate the regularty of stress distribution and the areas of stress concentration in different structures of the mandible subjected to impact loading so as to provide references for studying biodynamics of the mandibular impact injury.

目的：探讨撞击载荷作用时下颌骨不同结构的应力分布规律、应力集中区域，为研究下颌骨撞击损伤的生物力学机制提供参考依据。

Results A 3D model of mandible was established by using digital human data. The model was fine to show the mandible, teeth and mandiblar cannel.

结果利用数字人数据得到了下颌骨精细的三维模型，在三维方向上真实地再现了下颌骨、下颌牙的解剖形态，并准确地显示下颌管的位置。

Methods 15 Mongrel dogs were subjected to be lengthened of the unilateral or bilateral mandibles using the home made type MS 1 mandibular distracter,and the regular X ray examinations were made.

采用自行研制的MS 1型内置式下颌骨骨牵引延长器，对 15只犬分别进行下颌骨单侧及双侧骨牵引延长实验，X线定期检查。

Methods Unilateral mandibular osteotomies were performed in 30 mature rabbits, the mandibles of 30 rabbits were lengthened by 4mm using a distracter.

方法在30只成年大耳白兔的一侧下颌骨前部行骨切开术，用牵引器延长一侧下颌骨4mm，分别于牵张完成后的第1，3，7，14，28天处死一组动物，取牵引区新生骨痂行组织学及OPG免疫组化染色。

After osteotomy of the junction of mandibular body and ramus, setting the customized distracter, and 4days latency, distraction was managed to lmm/day, twice /day and lmm/day, once/day for 5days, respectively.

于一侧下颌骨体部与下颌骨升支结合区骨切开，安装改制的牵张器，间歇4天后开始牵张，0.5nm/次，2次/天，连续5天，于2周后取材，进行大体、X线和组织学观察。

The protrutive relation was set to reestablished the articulation. The geometry model constructed in CAD software was put into MSC.PATRAN to set the concrete Three-dimensional Finite Element Model. Result revealed (1) Tensile stress distributed in the posterior-upper area; molar area.(2) Compressive stress distributed in the opsile molar area and gonion area .

本研究通过模拟下颌前伸时，对下颌骨骨组织应力变化进行三维有限元分析[3 ，8] ，了解下颌骨骨组织应力分布特点，为临床矫形治疗提供理论依据。1 材料与方法1.1 建立几何模型1.1.1 病例选择选择一名年龄 12岁的男孩，X线手腕骨片显示处于生长发育高峰前期，全身发育正常。

And then with the mandibles, basically with the egg laying scenes, we wanted to match the mandibles on there so she could actually wrap around almost like a face hugger in a way, and grab peoples faces as she's doing the impregnation.

然后与下颌骨，基本上与产蛋场面，我们想配合下颌骨上有那么她其实是可以捆绕，几乎就像一个面对hugger的一种方式和攫取人民的脸，因为她的做浸渍。

The mouth openings of 58 cases were over 37 mm, only 4 cases less than 37 mm in 3 months postoperatively. Conclusion: The miniplate internal rigid fixation has the advantages over conventional intermaxillary fixation and wire fixation

下颌骨骨折的小型钛板坚固内固定效果可靠，避免了颌间结扎；对颞下颌关节功能影响小；口内手术入路避免了面部皮肤瘢痕；较传统的下颌骨骨折颌间结扎固定及钢丝拴扎固定有明显的优点。

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。