磨牙

Objective To study the stress distribution of the maxillary second molar under different loading conditions.

目的 研究上颌第二磨牙在不同载荷状态下的应力分布情况，为临床牙体病的诊断与修复提供理论依据。

Results: All patients were treated to Class I molar and normal overjet and overbite relationships at posttreatment,.

结果：两组患者均达到了磨牙中性关系，前牙达到正常的覆盖、覆关系，并产生了以下变化。

It would lower the degree of Deep overbite malocclusion that induced the vertical growth during the period of growth.

磨牙伸长的同时有下颌升支的代偿性生长；在生长期引导垂直向生长可有效地改善深覆牙合畸形。

The sagittal inclinations to the palatal plane of the first and second maxillary molars were measured on panoramic tomography.

研究样本分为两组，第一组的研究对象（n=30）具有完整的正常牙列，包括上颌第三磨牙。

Objective: To study the stress of mandible premolar under various loadings on its traumatic occlusal spots.

目的：研究不同载荷加载于下颌前磨牙临床常见的创伤性咬合点时牙体组织的应力分布。

Pearson product moment correlation coefficients were used to analyze the effect of the age, cranial length and maxillary length on the molar's location in the maxilla.

但是后续的实验研究表明，上颌第一恒磨牙的位置并不是固定不变的，它会随着牙弓内、外因素的变化而发生位置的变化，影响错畸形的形成[1]。

Methods In four kinds of prosthodontia design models, stress distributions in the remaining sections of the alveolar bone of the mandibular first molar with hemisection models were evaluated.

运用光弹应力冻结切片法，分析⑤⑥⑦、⑤⑥、⑥⑦、⑥固定桥修复模型的第一磨牙半切术后余留根牙槽骨应力分布状况。

Experimental study on static frictional resistance between preadjusted bracket s and archwires in artificial saliva

结果 直丝托槽位置在第二双尖牙、第一磨牙处，拔牙病例与非拔牙病例托槽的垂直就位高度存在一定差异。

Methods Twenty-seven cases of agomphiasis were underwent MSCT.

目的 探讨多层螺旋CTDental成像技术在磨牙区牙种植术中的临床应用价值。

Measurements of the longitudinalseparation, buccolingual space and highness of the area were established to select the perfect spiral-shafted implant and simulating the implant. by means of the process the dentists can know about the complications well that may happen or not and know how to do the work wonderfully.

选择一例男性、55岁、右下第一磨牙缺失的患者，螺旋CT扫描， DICOM格式数据储存，应用OINS软件进行读取和分析，对缺牙区的前后径、颊舌径和所需高度进行测量，根据所得的数据并结合需要选择合适的种植钉，模拟种植。

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