牙

Objective: To elucidate the role HSP27 during amelogenesis and odontogenesis in the teeth of limited growth by analyzing its expression in enamel organ of developing rat molar teeth and rat molar.

目的：通过分析大鼠磨牙及其发育过程中，Hsp27 在成釉器中的表达，阐明Hsp27 在牙釉质、牙本质形成中的作用。

RESULTS: No reparative dentin was formed after 3 days of post-operation. The new-formed reparative dentin and osteodentin were observed after 15 days.

结果：术后3d未见修复性牙本质形成。15d后可见修复性牙本质形成，并可见骨样牙本质。

The proportion of periodontal disease, parulis, dental calculus, and maxillofacial deformities is rising and that of dental deposit and choice of F toothpaste is falling as pupils go on to higher grade.

随着年级的升高，牙周病患病率、牙龈出血率、牙结石检出率、牙颌畸形患病率、氟牙症的患病率也增加。

Methods 184patients（age18～60）with184infected permanent teeth were randomly divided into two groups.The experimental group was filled with the VITAPEX paste plus gutta percha.

在临床选择18～60岁的牙髓坏死、慢性根尖周炎病例184例，184颗患牙，随机分为两组，第一组采用VITAPEX糊剂加牙胶尖一次法根充治疗完成。

A group: to measure the length of root canal by Root ZX, prepare the root canal and test the trial point for a best position of the major Gutta Percha Point in root canal obturation with lateral compaction, then take X-ray photos.

随机选择需行根管治疗术的单根管恒前牙、双尖牙 2 30颗，分为A、B两组，A组采用RootZX 根管测量仪测量根管长度，根管预备后，根管充填时加试尖步骤，调试出最适主尖后侧压充填根管，摄牙片

Methods: 124 teeth of 109 patients with pulpitis and chronic periapical periodontitis requiring root canal therapy were included in this study.

将109例患者124颗患牙(包括牙髓炎、慢性根尖周炎)随机分为2组，每组62颗牙。

The treatment to periodontal disease is mainly combined therapy,which control inflammation by periodontal medicine and operation;adjust interlocking,eliminate dental wound,relieve the burden of peridental supporting tissue by recovery treatment;fix the loose teeth,disperse the bite force,control the patho-loose and displacement,elevate the masticatory efficiency,make the troubled teeth to rest,is benefit to the control to periodontal inflammation and the healing of destructed periodontium.

牙周病治疗主要是综合治疗，通过牙周药物治疗、手术治疗来控制炎症；通过修复治疗调整咬合，消除牙创伤，减轻牙周支持组织的负担；固定松牙，分散力，控制病理性松动和移位，提高咀嚼效能，使患牙得到生理性休息，利于牙周炎症的控制和已破坏的牙周组织的愈合。

In this study, the pontic width was designed to three types: normal, one third width reduction, and one second width reduction. We developed the pontic reduction model based on the primary model in the first part of this paper. Two kinds of force condition were simulated.

在论文第一部分所建立的下颌后牙固定桥三维有限元计算模型的基础上，建立五种不同牙槽骨高度水平的基牙的固定桥减径模型，模拟两种固定桥典型受力状况进行计算分析。

Methods:IL-6 expression in 8 samples of normal and 10 of inflammatory pulpal tissue was examined using immunohistochemical techniques.

采用免疫组化法，检测正常组8个牙及炎症牙髓组10个牙中IL-6的表达。

Results:Negative staining of IL-6 was found in all the cases of normal pulpal tissue while positive in all inflammatory pulp.

采用免疫组化法，检测正常组8个牙及炎症牙髓组10个牙中IL-6的表达。

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