查询词典 tooth wear

To explore the effect of high fluoride and low protein on tooth development and clarify the mechanism of excessive tooth wear, and decalcification of incisors were researched by SEM.

为了探索高氟低蛋白对牙齿发育的影响，阐明牙齿过度磨损的机理，应用扫描电镜对第一、二切齿脱钙前的矿化及脱钙后的基质结构作了观察。

AIM: To investigate the tooth wear state of permanent tooth from human samples about 3000 years ago, compare it with the state of modern people and research the evolutional rule and influential factors of human tooth wear from 3000 years ago to nowadays.

目的：调查距今约3000年前出土人牙齿的磨耗状况，并通过与当代人牙齿磨耗状况进行对比性研究，以探求3000年来人牙齿磨耗的演变规律及其影响因素。

Secondly, as a result of tooth thickness in the direction of tooth wear, so that active and passive gear mesh gap increased.

其次，由于轮齿在齿厚方向的磨损，使主、被动齿轮的啮合间隙增大。

Tooth wear is defined as the loss of the tooth substance which is not caused by dental plague, caries and injuries.

牙齿磨损是指在没有菌斑、龋坏及外伤情况下牙体组织丧失的现象。

It is compared with involute gear most prominent advantage is that the process of meshing gear tooth profile surface there is no relative sliding, so no tooth wear, smooth operation, without the phenomenon of trapped liquid, low noise, long life and high efficiency.

它与渐开线齿轮相比最突出的优点是齿轮啮合过程中齿廓面没有相对滑动，所以齿面无磨损，运转平稳，无困液现象，噪音低、寿命长、效率高。

In a recent study, the researchers found that prolonged consumption of sports drinks may be linked to a condition known as erosive tooth wear, in which acids eat away the tooth's smooth hard enamel coating and trickle into the bonelike material underneath, causing the tooth to soften and weaken.

研究人员发现长期饮用运动饮料会导致腐蚀性的牙磨损，因为一些酸类会侵蚀牙齿表面光滑而坚硬的釉外壳并渗入内部的牙骨质，从而导致软化衰弱。

AIM: To study the correlation between tooth wear and age as well as gender by investigating the state of average tooth wear on incisal and occlusion surfaces in general population.

目的：通过调查普通人群牙齿切缘及咬牙合面的磨耗情况，研究牙齿磨耗与年龄和性别的关系。

1Tooth wear was a common phenomena.The degree of tooth wear increased with age.2The tooth wear scores in men were higher than those in women.3Tooth wear was related with biting habit and subfunctional movement.

①牙齿磨损在成年人群中相当常见，磨损程度随年龄的增长呈上升趋势；②男性牙齿磨损发生率高于女性；③牙齿磨损与个人的饮食习惯、副功能运动等有一定联系。

However, whether the degree of tooth wear has something to do with tooth microstructure, how specific occlusal factors affect the development of tooth wear, and what kind of relationship exists between tooth wear and bruxism or TMD, all these are not clear yet.

作为磨损发生的主体，牙齿的内部结构与磨损程度之间是否存在一定的关系，牙齿所构成的特定的个体咬合因素及其生物学力学特征会对磨损产生何种影响，口颌系统两大功能紊乱性疾病——磨牙症、TMD与磨损之间存在何种关系，均尚不清楚。

Key words: Tooth wear; Comounded resin; Tooth hypersensitivity; Plombage

目的：探讨应用复合树脂充填磨损导致的牙齿敏感症的方法和疗效。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。