tooth root

Methods: Tooth root Injected solidified calcium phosphate cataplasm tube, then pressed with gutta peneha points.

方法自固化磷酸钙充填糊剂根管内注入后加牙胶尖挤压.

CAD of Tooth Profile and Easement Curve in Tooth Root for Cylindrical Gears

圆柱齿轮齿形及齿根过渡曲线的计算机设计方法

Objective: To evaluate whether the renal capsule is a suitable implanting place for tissue engineering of tooth root and periodontal tissue.

前言：目的：评价肾被膜作为组织工程牙根和牙周组织的种植环境。

Objective To analyze the effect of preserving severely damaged teeth such as stubbed tooth root 、 crown and vertically fractured tooth through compositive therapy.

目的利用综合治疗，对残根、残冠、纵折牙等严重缺损牙进行保存治疗并分析其疗效。

Therapeutic effectiveness was observed on the restoration of the severe crown defect of the front teeth when treated with baked porcelain crown after one visit filling of the tooth root.

对前牙牙冠严重缺损者采用一次性药物根管充填，制作桩核，即时备牙，取模、制作金属烤瓷冠，从而明显减少了患者就诊天数及时间。

The equation inferential reasoning provides the theory basis for the awl tooth transition surface, the tooth root face, cut the equation of a curve and the geometry restraint equation inferential reasoning, they are essential to formed the overall awl tooth full-scale mockup.

该方程的推导为锥齿过渡面、齿根面、切曲线方程和几何约束方程的推导提供了理论依据，它们对形成整体锥齿实体模型是不可缺少的。

FEM and theory of space engagement incorporated, contact strength, main stress envelope on root of tooth, load distribution among teeth and effect that assembly error to transmission strength has been studied in this paper.

本文利用有限元分析方法，结合空间啮合原理，对侧隙可调式蜗杆传动的接触强度，蜗轮主应力分布，齿间载荷分配以及装配误差等进行了研究。

The Deduction and Calculation of the Tooth Form Factor YFa and the Tooth Root Stress Concentration Factor Ysa

齿形系数Y（Fa）与齿根应力集中系数Y（sa）的推导与计算

The stress in thread head and the root of first engaged tooth on tail beyond yield limit.

螺纹端部和尾部第1啮合齿的根部已进入屈服区。

METHODS: Screw thread root canal spiles and resin tooth products were used to rehabilitate tooth root all in once to cases of residual crown, residual root, or traumatic odontoclasis based on complete root treatment.

方法：残冠、残根、外伤牙折在完善的根管治疗的基础上，采用螺纹根管钉与成品树脂牙一次性桩冠修复。

An Analytic Calculation Method for the Tooth Root Bending Stress of Asymmetric Plastic Gear

非对称塑料齿轮弯曲应力的解析法计算

One tooth works while the other one idles and gets no stimulation in its root area.

一颗牙齿在工作,另一颗则闲着,它的牙根部得不到刺激.

A tooth with a single cusp. Cuspids have the longest root of any tooth. Also known as a Canine.

只有一个牙尖的牙齿.任何一个尖牙都有一个较长的牙根.也称为犬齿。

The experiments of the tooth root stress and noise testing have proved that the method is efficient for designing the high contact ratio gear set, and has some advantages of dynamic behavior and strength.

通过切齿、齿根应力测试、噪声测量等对比实验，验证了高重合度弧齿锥齿轮设计方法的可行性，证明了这种齿轮在动态性能与强度性能方面均有优越之处。

Hypoplasia of teeth root ( HTR ) disease is a disorder with physiological development of tooth root.

牙根 发育 不良 疾病是牙齿根部生理性发育出现障碍的疾病.

Two formulas of compound shaper cutter are ob-tained. They are used to calculate the pitch pressure angle of chamfer involute and radius of circle on which chamfer involute starting point lies, and to check the tooth root slot width.

得到了复合插齿刀倒角渐开线分度圆压力角，倒角渐开线起始点所在圆半径的设计公式及插齿刀齿根槽宽的验算公式；

It has been proved that OC and OD are two important function cells involved in the absorption of deciduous tooth root and alveolar bone, they blazed a way for the erupting permanent tooth germs.

现已证实，OC与OD是参与吸收乳牙根、牙槽骨等组织的重要功能细胞，并为恒牙胚的发育和萌出创建通道。

Experimental Study of the Dental Follicle ′ s Function in Tooth Root Development

牙囊在牙根发育中作用的实验研究

it pointed out that the design of gear cutter should greatly increase the tooth point arc so as to reduce the stress concentration to increase the force of tooth root.

指出通过计算作出图形，可分析出滚刀齿顶圆弧的设计是否合理。

root canal treatment (= treatment in which a dentist removes a diseased area in the root of a tooth)

牙根管治疗

The bottom face of each tooth edge is processed with an inclined swallow-tailed groove combined with each tooth root or a stepped inclined swallow-tailed groove.

每个齿刃的底面加工有与齿根组合的斜燕尾状凹槽，或者是阶梯式斜燕尾状的凹槽。

Influence of Donor Cementum on Root Resorption Following Homologous Tooth Transplantation

牙骨质对植牙牙根吸收的影响

Thickness of the tooth body; Root canal therapy; Research.

牙体壁厚度；根管疗法；研究。

Bending Fatigue of the Tooth Root of the Driving Gear in the Increasing Speed Gearing of the Armoured Vehicle

装甲车增速齿轮传动中大齿轮齿根的弯曲疲劳

Results: bmp3 was found in dental sac surrounding the germs at the early stage of tooth root development, and in cementoblasts and periodontal cells at the later stage.

结果：bmp3的表达始于牙根发育早期的牙囊组织，之后转移到成牙骨质细胞和牙周膜细胞中；

At present, it has been proved that OC and OD are two important functional cells involved in the physiological absorption of deciduous tooth root and the formation of the tooth eruption passage.

现已证实，OC和OD是参与乳牙根生理性吸收和萌出道形成的两种重要功能细胞。

The tooth root stress of cylindrical gear has been calculated and analyzed in detail, and compared with the result obtained by the load bearing capacity computing method of cylindrical gear ( GB3480 83).

对圆柱齿轮的齿根应力进行了大量的计算和详细的分析，并且与按国标渐开线圆柱齿轮承载能力计算方法（GB3480－83）计算的结果进行了对比。

The study shows that the stress in tooth middle is larger than that in tooth root with big spiral angle and light load.

研究表明，大螺旋角或小载荷时，齿腰应力大于齿根应力。

Objective To study role of dental follicle in tooth root development.

目的研究牙囊在牙根发育中的作用。