牙

In this study, we investigated the gene expression pattern of Cbfal in odontoblast as well as tooth development by gene cloning and in situ hybridization. The results revealed the essential role cbfal plays in tooth development.

本研究采用基因克隆与原位杂交的方法，研究了cbfal在牙乳头细胞及牙胚发育中的表达，初步证实了cbfal在牙胚发育中的作用，同时，作为整体实验设计的一部分，本研究所构建的cbfal cDNA探针及反义核酸cbfal真核表达载体为对cbfal进一步的研究奠定了基础。

RESULTS: CaB was detected in odontoblast layer, predenfin, vascular epitheliun cells, nerve fibers of both healthy and carious teeth.

结果：CaB在正常和龋病牙髓中成牙本质细胞、前期牙本质、血管内皮细胞及神经纤维中均有表达。

II METHOD1 chose one of 3A level hospitals dentistry to carry through sanitation quality investigation of the dental diagnosis and treat instruments. Examined appliance include air turbine dental handpieces, punch-pin, odontoscope, bougie, tweezer, flex-tray that were so common used by dentists and daubed the inside or outside surface of the dental appliance and collected it; Examined targets were HBsAg, HBeAg and HBV-DNA (detected it with molecule spot cross method).2 make good use of the air turbine dental handpieces bracket jack which was all available in every china hospital dentistry and design outside shape and inside structure of the binary disinfectant-box for the air turbine dentalhandpieces.

二 方法 1 选取本市某所三甲医院口腔科使用的牙钻手机、车针、口镜、探针、镊子及弯盘6种常用诊疗器具行涂抹采样；检测指标为HBsAg、HBeAg、HBV-DNA；检测方法为HBsAg和HBeAg采用ELISA法，HBV-DNA为斑点杂交法； 2 充分考虑、利用现有牙钻手机支架插孔，设计牙钻手机二元消毒盒外形及内部构造；选定高效消毒剂戊二醛为消毒盒消毒腔内应用消毒液，其消毒效果及毒性鉴定试验参照卫生部消毒技术规范执行。

The correlation of the three forms is rather low, but the correlation between every two forms is comparatively high. The curves of 4 order polynomial equation can fit the dental arches well.

成都地区正常牙合人的面形、弓形和切牙形三者的相关性较低，而它们两两间的相关性较高。4次方程曲线可对牙弓进行良好的拟合。

Objective Analysis of the canine and molars movement type in different orthodontics force by means of finite element method.

目的 用有限元的方法分析尖牙远中移动时尖牙及支抗磨牙不同受力状态下的移动方式。

Methods Three groups of patients,the first group place implant generally,the second groupuse Osteotome technique and Sinus floor elevation combined with implant placement,the third group use Osteotome technique and Sinus floor elevation,second time place implant after it be cured,calculate success rate.

方法三组患者，第一组常规行种植体埋入，第二组骨挤压法行上颌窦底提升术同期埋入种植牙，第三组行上颌窦底提升术后二期埋入种植牙。统计种植牙的存活率。

Paleoanthropologist David Strait of the University at Albany in New York state and his colleagues found that A. africanus evolved jaws, teeth, and a face that would have been particularly good at withstanding large forces on its premolars—precisely the place where humans and other primates crack large objects, such as nuts that are too big to chew with our molars.

纽约州奥尔巴尼大学古人类学家戴维·斯特雷特和他的同事发现，南方古猿非洲种的颌骨、牙齿和脸经过演化，其前磨牙特别擅长经受极大的力气——人类和其他灵长类动物恰好就用前磨牙来咬碎像坚果一样的大块食物，大到我们的磨牙无法咀嚼。

The department is concerned with research within the fields of cariology, endodontics, clinical oral physiology, oral and maxillofacial surgery, dental materials science, oral cell biology, oral microbiology, oral diagnostic radiology, orthodontics, periodontology, pedodontics, and prosthetic dentistry.

该系从事下列领域的研究：龋病学，牙髓学，临床口腔生理学，口腔与上颌面外科学，牙材料科学，口腔细胞生物学，口腔微生物学，口腔诊断放射医学，正牙学，牙周病学，儿童牙科，和辅助牙科。

Faculty of Dentistry is primarily dedicated to education and research in dentistry including conservative dentistry, endodontics, dental materials science, dental public health, oral and maxillofacial surgery, oral microbiology, oral pathology, cariology, oral rehabilitation, orthodontics, paediatric dentistry, periodontology, implantology.

牙科学学院创建于1980年，主要致力于牙科学的教学与研究，研究领域包括牙科保护学，牙髓学，齿骨原料科学，齿骨公共健康，口腔全颌面外科学，口腔微生物学，口腔病理学，龋病学，口腔康复，正牙学，儿科牙科学，牙周病学，移植学等。

Constant embryonic tooth development began in the first 4 weeks to 9 months to form, the lower total of 28 permanent tooth germ.

恒牙胚的发育始于胚胎第4周，至第9个月形成上、下颌共28个恒牙牙胚。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。