1. Whitestrips not only may eliminate the dirt of the tooth surface, but also may penetrate in the enamel of teeth to make the teeth white. Use this paste, one time later you will find effect, continuous use brings you evidently white teeth.
    生产牙贴的技术含量要求非常的高，而且效果是要事实来证明的，每次使用欧诺洁深层美白牙贴后牙齿都有着不同程度的美白改变，90%的人群使用一次见效，经常使用能使牙齿显著亮白。

2. The part of a tooth that is covered by enamel and projects beyond the gum line.
    这是美国男性和女性的初婚平均年龄柱状图。

3. tooth enamel

3. First, if the means to acquire properly, it may damage tooth enamel and gums, as well as some small clinics without polishing after scaling, tooth surface stones will appear quickly.
    首先，如果方法掌握不当，可能会损害，而不必扩大抛光后牙釉质和牙龈，以及一些小诊所，牙齿表面的石头很快又会出现。

4.

4. Methods: The mice whose tooth germs were in bell stage, late bell stage and enamel mature stage were selected.
    选择牙胚发育期分别位于钟状期、钟状晚期、釉质成熟期的昆明小鼠头颅切片，使用抗鼠AMELX、AMBN和ENAM多克隆抗体（由美国德州大学健康科学中心Dr。

5. It was shown that Fgf8 express in epithelia of milk tooth and limit in enamel knot, but it doesn''t express in permanent tooth.
    在9 周的人类第一磨牙牙胚的原位杂交显示Fgf8只在乳牙上皮表达，而且局限在釉结节，在恒牙上皮中并没有表达。

6. It was shown that Fgf8 express in epithelia of milk tooth and limit in enamel knot, but it doesnt express in permanent tooth.
    在9周的人类第一磨牙牙胚的原位杂交显示Fgf8只在乳牙上皮表达，而且局限在釉结节，在恒牙上皮中并没有表达。

7. RESULTS: Small tooth structures were identified, and consisted of organized dentin, enamel, pulp, and periodontal ligament tissues, surrounded by new bone.
    结果：生成的少量牙齿样结构包括有牙本质、牙釉质、牙髓、牙周膜样组织被新生骨包围。

8. The main, calcareous part of a tooth, beneath the enamel and surrounding the pulp chamber and root canals.
    珐琅，搪瓷；瓷釉，瓷漆；珐琅质3、抽吸；空吸（抽掉空气或液体使另一种物质因压力而被吸入

9. After the fluoride into the tooth germ, it is in the developmental stage with the enamel crystals react fluorapatite began to replace the hydroxyapatite.
    进入后牙胚氟，它在牙釉质晶体的发展阶段，是氟磷灰石反应开始取代羟基磷灰石。

10. Fluorapatite is a crystal that contains fluoride, tooth enamel than in the general composition of hydroxyapatite crystals have a stronger corrosion resistance.
    含氟是晶体，其中包含比一般的羟基磷灰石晶体组成的氟化物，牙齿珐琅质具有较强的耐腐蚀性。

11. tooth enamel在线翻译

11. On the termination date, the cultured explants were all examined by Western blot, HE and transmission electron microscope. Our results showed that after 12-days in culture, the cultivation treated with AS-ODN reduced the synthesis of AMBN and had a deformed dental cusp with thinner enamel matrix. Ultrastructure analyses showed that there was hardly any cisternae of the rough endoplasmic reticulum in the ameloblasts at the tip of the cusp of AS-ODN treatedexplants. However, on average the enamel matrix was thinner compared with that in the control group. Furthermore, the collagen fibers in extracellular matrix were found disorganized. These findings seemed to provide a direct experimental evidence that tended to indicate that the arrested AMBN translation in cultured tooth germs might result in the delay of the tooth development.
      经用Western蛋白印迹检测表明，所设计的反义核酸对AMBN InRNA具有良好的封闭效果并成功阻断了牙胚对AMBN的表达；在缺乏AMBN情况下，与对照组相比，实验组牙胚在体外可以继续生长发育至钟状晚期，出现成釉细胞和成牙本质细胞的分化，成釉细胞可以分化成为分泌期型成釉细胞，胞浆中缺少合成蛋白质所必需的粗面内质网和高尔基氏体，缺乏溶酶体，表明对蛋白合成和脚的能力降低；实验组牙胚有牙尖形成和基质分泌，但牙尖形态异常，基质形成减少，牙尖周围基质最厚处为O.6卜m，明显薄于对照组的5.spin，基质中胶原纤维粗细不等，排列稀疏，3 第四军医大学硕士学位论文未见钙化现象，充分证明了AMBN在牙胚发育中参与釉质基质形成和矿化过程，影响胶原纤维和牙本质基质的合成，促进成釉细胞对蛋白质的合成和釉质基质蛋白降解。

12. The approach involves the use of hand instruments only to remove carious tooth substances and restoring the cavities and sealing any adjacent enamel fissures with glass-ionomer cement.
      在儿童牙科治疗中，高速磨牙机的使用常造成儿童恐惧看牙的因素，此时运用ARF的方法，在儿童牙科处理上常有正面的效果。

13. As we age, the outer layer of tooth enamel wears away.
      随着年龄增长，我们牙齿外层的釉质会慢慢地磨损。

14. In addition, there is little antibacterial activity, can be formed on the tooth enamel layer of sterile cell membrane components, help prevent tooth decay.
      此外，还有少许的抗菌作用，可在牙齿的珐琅质上形成一层无菌细胞成分的薄膜，有助于防范蛀牙的发生。

15. In addition, there are a few of the antimicrobial activity, can be formed on the tooth enamel layer of sterile cells of the film, help to prevent the occurrence of tooth decay, can not do less.
      此外，还有少许的抗菌作用，可在牙齿的珐琅质上形成一层无菌细胞成分的薄膜，有助于防范蛀牙的发生，少了可不行。

16. Outside tooth enamel layer is a package, enamel by the rules of inorganic crystals in a crystal lattice, the result of the growth.
      牙齿外面包的一层是牙釉质，牙釉质是由无机晶体在很规则的晶体点阵上生长而形成的。

17. One study will analyze tooth enamel for trace minerals that would mark the captives as having grown up in Africa, the Caribbean or North America.
      一项研究将分析牙齿瓷釉的微量矿物质来确定这些被捕获的奴隶是在非洲、加勒比海还是北美成长的。

18. Results 12 single lower incisor absence patients, of whom 6 combined with tooth extraction; 3 used interproximal enamel stripping and the rest 3 combined with prosthetics; 16 double lower incisors absence patients, of whom 10 combined with tooth-extraction and the rest 6 combined with prosthetics.
      结果：12例单个下切牙先天缺失患者中，有6例结合减数矫治，3例采用邻面去釉技术，3例结合修复方法；16例两个下切牙先天缺失患者中，10例减数矫治，6例采取缺牙修复。

19. 公共查询·英语单词

19. Previous studies have showed increasedfluoride exposure during tooth formation results in enamel and dentin changes.
      以往关于氟斑牙的研究表明：牙齿发育期间，长期或短期接触过量氟，均能引起氟斑牙。

20. The probability of forming this kind of structure was just 20%. Immunohistochemistry results provided evidence that the enamel like structure was originated from porcine tooth germ derived epithelial cells while dentin like structure was originated from human DPSCs.
      本部分结果表明人的牙髓干细胞和猪的牙源性上皮细胞在体内，可以模拟类似牙胚发育时期的上皮-间充质相互作用方式，相互诱导，并有可能成功形成异种嵌合体结构。