tooth root的例句大全

Based on orthogonal experiment, the significance of factors affecting fatigue life, including the root shape, the size of root radius and the geometric parameters of tooth and end flange, is obtained.

通过正交试验法研究了超高压容器疲劳寿命的影响因素，包括齿根形状、过渡圆角半径和端部法兰、啮合齿等几何参数。

The comparative study on clinical effects of three kinds of disinfectant in root canal applied to young permanent tooth with periapical periodontitis

3种根管消毒剂在年轻恒牙根尖周炎治疗中的疗效对比研究

The permanent tooth germ plays an important role in physiological root resorption of deciduous tooth, but not the alone factor.

恒牙胚是引起乳牙生理性根吸收的重要因素，但却非唯一的因素。

The discovery would possibly be beneficial to continuous development of the root of young permanent tooth with dental pulp necrosis and apical periodontitis after appropriate treatment.

这一发现可能有利于根尖未发育完成的年轻恒牙发生牙髓坏死以及由此引起的根尖周炎经适当的治疗后牙根的继续发育。

The dental replacement is a special physiological process in childhood. The root of deciduous teeth will be absorbed with the development of permanent tooth germ, and be replaced by permanent teeth.

乳恒牙替换是儿童时期发生一种的特殊生理现象，随着恒牙胚的发育，乳牙到一定时期牙根会逐渐吸收，由萌出的恒牙所代替。

Effect of permanent maxillary anterior tooth anatomy on root canal therapy difficulty assessment

中国成人离体上前牙解剖因素对根管治疗难度的影响

The rats were fed with the decoction of Drynaria fortunei 、 Chinese teasel root 、 Salvia Miltiorrhiza separately. Then the action of the traditional Chinese medicine during the orthodontic tooth movement of the rats was observed.

在此基础上分别给大鼠灌服丹参、骨碎补和川续断三种中药的水煎剂，然后观察三种中药在大鼠正畸牙齿移动过程中所发挥的作用。

Methods: Seventy extracted maxillary first premolars were used in this study. The Tooth Length, Crown Length, Root Length, Cervix Thickness, Cervix Width, Crown Thickness and Crown Width were measured with a vernier caliper.

方法：收集牙齿发育完全根尖完整的上颌第一前磨牙70颗，用游标卡尺测量每个牙的牙长、冠长、根长、颈厚、颈宽、冠厚和冠宽。

Influence of Donor Cementum on Root Resorption Following Homologous Tooth Transplantation

牙骨质对植牙牙根吸收的影响

forensic identification of tooth trauma with root canal therapy

根管治疗齿外伤性脱落的法医学鉴定

it is the outside circle (tooth tip circle) of the external spline or the root circle of the internal spline.

它是外花键的外圆（齿顶圆），和内花键的齿根圆。

it is the root circle of the external spline or the inside circle (tooth tip circle) of the internal spline.

它是外花键的齿根圆，和内花键的内圆（齿顶圆）。

clinical evaluation of root canal retained onlays for posterior tooth defects

根管固位的铸造高嵌体修复后牙缺损的临床观察

clinical observation on residual root being used for fixed-bridge abutment tooth

利用残根作为固定桥基牙的临床观察

aim: to investigate the repairing effect and clinical significance of using the residual root for fixed bridge abutment tooth.

目的：探讨残根作为固定桥基牙的修复效果和临床意义。