下颌前的

Some serious skeleton abnormals as above before the Han Tu, descend before the Han Tu and open Han etc. needed to be carried on before the awkward age arrives to correct and cure the development that then can stop wrong Han in early days, the guide tooth, Han bone grew as usual.

有些严重的骨骼畸形如上颌前突、下颌前突、开颌等需要在青春期到来之前进行早期矫治才能阻断错颌的发展，引导牙齿、颌骨正常生长。

Results: When the slide segment was retained 1 mm width,the fifth cheek tooth and anterior edge midpoint of condyle process anterior slope and coracoid process showed negative displacement and the angle of mandible and the posterior edge midpoint of condyle process posterior slope showed positive displacement on x axes.

结果：在牵张过程中牵张侧下颌骨标志点位移趋势为在内外方向上第五臼齿、喙突、髁状突前斜面前缘中点的运动趋势是向外的，而下颌角、髁状突后斜面后缘中点的运动趋势是向内的；在前后方向上第五臼齿、喙突的运动趋势是向后的，而下颌角的运动趋势是向前的；在上下方向上第五臼齿的运动趋势是向上的。

The area where the changes is much bigger during the anterior part of the mandibule and maxilla is the upper and lower clypeus and the vermilion of which the tissue is relax, packing and the unit tissue area was compressed smaller in some place.

上下颌前份截骨术后发生较大形变的上下唇基部及唇红，这些部位组织松弛、堆积、某些部位单元组织面积压缩变小。

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。

Objective To analysis the complications caused by technique of intraoral Sagittal Split Ramus Osteotomy for correction of mandibular prognathism and how to prevent them from occurring.

目的：探讨应用下颌升支矢状劈开截骨术矫治下颌前突并发症的原因及预防措施。

Radio-ligand binding assay was applied to determine the maximum binding and affinity changes of nicotinic acetylcholine receptor on five weeks old male Sprague-Dawley rat's lateral pterygoid muscle and superficial masseter muscle after the function mandibular advancement.

本研究在以往研究的基础上，首次对功能矫形的神经肌肉调控机理进行探索。应用放射受体分析法，从膜受体蛋白分子水平定量研究功能矫形前伸青春期SD大鼠（5周龄）下颌后，下颌前伸肌细胞膜烟碱样乙酰胆碱受体最大结合容量和亲和性的变化。

Methods Bacterial plaque index of submaxilla premolar, gum bleeding index and probing depth of rhubarb and indomethecin rinse group and placebo group were measured at 1 week before and 2, 4, 8 weeks after placing orthodontic appliances.

方法将60例需做正畸治疗的患者分为2组，A组和B组患者戴入矫治器前1周、戴入后2周、4周、8周下颌前磨牙菌斑指数、牙龈出血指数、牙周探诊深度。

Methods Autogenous costochondral grafts were applied in the reconstruction of the temporomandibular joint in 27 cases with condyle ankylosis from 1988～1998.The follow up period was 1～10 years.The pre-and post-operative degree of mouth opening and the TMJ function was examined.

采用自体肋骨、肋软骨移植对27例颞下颌关节真性强直患者进行了关节重建术，术后随访，计算手术前后张口度的差值，检查咬合关系、下颌前伸和侧向运动功能，行关节X线检查。

All findings indicated that adult Angle III anterior crossbite can be corrected with reverse TBA combined Edgewise,and the speed was very quickly.

下颌前突的成人患者应用改良固定反式TBA后，下颌明显后退，下颌的变化较上颌大。同时联合方丝弓技术较其它掩饰性治疗的疗程明显缩短，对成人的治疗快速高效。

Prior to registering the mandibular neutral zone, reestablish an appropriate vertical jaw relationship, and deprogram muscles responsible for mandibular posture.

在记录下颌中性区前，很有必要找到颌骨在垂直向上合适的位置，放松负责下颌运动的肌肉

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐