Crowns strengthen and protect the remaining tooth structure and can improve the appearance of your smile.
牙冠可以加强和保护剩馀的牙齿结构，并改善外观。
Analyzes from the tooth structure, they very possibly have both the zoophagous and the food grass characteristic.
从牙齿结构上分析，它们很可能兼具食肉和食草特征。
This procedure often requires removing a small amount of tooth structure and is the most invasive, as well as the most expensive, treatment option.
这种方法只需要去除一小部分牙体组织，在所有治疗方案中，全瓷牙是对人体最无害的，但也是最昂贵的。
It has been proved that many kinds of genetic diseases can influence the development of tooth, with symptoms of abnormalities in tooth structure, appearance.
目前研究发现多种遗传性疾病都能影响到牙齿的发育，表现为牙齿结构、形态、数目和萌出等方面的异常。
All filled teeth were used for dye penetration test, and the depth that dye penetrated was measured between the restorations and the tooth structure under the metered microscope.
采用染料渗透实验，用测量显微镜测出染料渗入牙齿的深度。
The seamless stitching net flakes from gravel and network-fiber cloth into Stickies, a rectangular sheet structure, its features is described in the four-mesh surrounding the tooth structure.
该无缝拼接网石片由卵石与网络式纤维布胶粘成，呈矩形片状结构，其特征在于所述网片石的四周边为齿形结构。
An alternative rest-seat preparation, on the marginal ridge of the canine crown, conserves tooth structure and provides a rest seat of adequate length and depth to ensure support for a cast framework.
另一种休息座位的筹备工作，对边缘嵴冠的犬，保存牙齿结构和提供了充足的休息座位的长度和深度，以确保支持铸造框架。
As bone and teeth are very similar in their structure, a team of scientists at the National Institute for Health and Medical Research in Paris tested if the hormone could stimulate tooth growth.
不过近期的研究表明，它在刺激骨质再生方面作用也非同小可。由于骨骼和牙齿在结构上非常相似，因此巴黎一家医学研究所的科学家对这种激素能否刺激牙齿生长进行了试验。
Design characteristics of intermittent gear mechanisms of action toys are introduced in tooth form, structure, material applying and manufacturing technology.
介绍了机动玩具中不完全齿轮机构在齿形、结构、材料应用和加工工艺方面的设计特点。
All transmissions part changes from chain drive structure to synchronized tooth belt, which has more smooth transmission and less noise.
所有传动部件改以往的链条传动为同步齿形带传动，其传动更平稳，噪声更小。
On the basis of production, a series of process indicate that the lifespan of flat is mainly determined by internal structure, tooth shape processing and the quality of heat treatment.
在生产实践的基础上，通过一系列工艺表明搓丝板的内部组织，齿形加工及热处理质量对其寿命起决定性作用。
The geometric configuration, moving conditions and force conditions of the tooth surface and the process of rock disintegration must be studied in designing the cutting structure.
欲设计合理的齿面结构必须研究齿面的几何形状、运动状态、受力状态和岩石破碎过程。
This article focuses on the process of shaping the mixed rifle with a large spiral angle in the cannon, and proposes a cone-like cathode structure with asymmetric cuneiform working tooth.
分析了火炮身管大缠角混合膛线的成型过程，提出圆锥体单边切进楔形工作齿的阴极结构，经试验确定了阴极体锥度、长度与楔形工作齿角度的匹配关系。
CONCLUSION: Structure weak area of tooth was the internal cause of cracked-teeth occurrence, and traumatic occlusal force was the external factor tha.
结论：牙结构的薄弱环节是牙隐裂发生的内在因素，创伤性(？)力是促使牙隐裂发生的外在动力。
A face harmonic motion drive of separate tooth is a new form of utility model drive. It belongs to a structure of space active teeth drive.
散齿端面谐波齿轮传动是一种实用的新型传动方式，属于一种空间的活齿传动结构。
This module can partly eliminate the tooth-groove-effect from special structure of track in linear synchronous motor (LSM) by using a new stereoscopic probe coil.
高速磁浮列车悬浮间隙测量模块利用立体探头线圈，部分消除了高速磁浮列车长定子直线电机轨道齿槽结构对测量的影响。
A new structure of the transmission system of BIVIS is designed, and the design idea of using the double circular tooth gear in transmission system of BIVIS is proposed.
设计了一种新型双螺杆磨浆机传动系统的结构，提出了在双螺杆磨浆机传动系统中运用双圆弧齿轮的设计思路，设计并校核了双圆弧齿轮的具体参数。
The design of lingual bracket is based on the special anatomy structure of lingual face of every tooth and its morphological characteristics.
舌侧托槽是依牙齿舌面的解剖结构及每个牙齿的舌侧形态特征而设计。
The structure parameters have some relation with the vibration behaviors for the reducing box with two stage split flow Novikov gear of with double circular arc tooth profiles.
二级分流式双圆弧齿轮减速箱结构参数对其振动特性有一定的影响。
The machine structure is compact, rigid good, easy to move, sealed tank-style tracks, tooth chain drive, walk the resistance is small, durable, cutting accuracy and good.
该机结构紧凑，刚性好，便于移动，密封油槽式轨道，齿链驱动，行走阻力小，经久耐用，切割精度好。
Provided is a dental implant structure for recovering or improving function of a lost or damaged tooth.
本发明提供一种用于恢复或改善失去或受损牙齿功能的牙齿植入结构。
The utility model has the advantages of simple structure and firm buckling tooth fixation, and the dilating Angle is convenient to displace with safe usage.
本实用新型具有结构简单、变更扩张角度方便、扣齿固定牢固的的优点，且使用安全方便。
The invention provides a circular arc tooth cycloid rotor-typed engine structure, in particular to a circular arc tooth cycloid rotor engine.
本发明系一种圆弧齿摆线转子式发动机的结构。
This paper introduces the operation principle, structure of four-tooth outside chip discharge set of material device and main parameter determination of cutting amount.
介绍四齿外排屑套料装置的工作原理、结构及切削用量主要参数的确定。
The ligating structure includes a channel (48) that is configured to receive a corrective device (16) therein and to restrict the corrective device from movement relative to the tooth bonding pad.
绑扎结构包括通道(48)，其配置以将矫正设备(16)接收于其中，并且限制矫正设备相对于牙结合垫的移动。
Comparing with involute gear pumps, circular tooth gear pumps have following characteristics: compact structure, no pulsation, stable rotation, high efficiency, low noise, and long working life.
与渐开线齿轮泵相比，圆弧齿轮泵的特点是：体积小、无脉动、转动平稳、效率高、噪声低以及寿命长等。
The direct bonded restoration has been common technique for the lost structure of the posterior tooth.
直接黏结修复已成为后牙牙体缺损常见的修复方式。
Chapter 4 mainly solved the problems of tooth flank parameterization and the analysis of differential geometric structure, which is the theoretical basis to implement the third order contact analysis.
第4章主要解决了齿面的参数化和微分几何结构分析问题，它是实现三阶接触分析理论的基础。
A new_type die for hot fine forging internal gears was put forward. The structure principle of the die and the method for designing and machining the tooth profile of the die were discussed.
提出内齿轮热精锻成形的新型模具，论述了模具结构和模具齿形设计加工方法。
The tooth crown is manufactured by the composite structure antiwear plug welding technology.
所述齿冠采用复合结构耐磨塞焊技术制作。
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