酸袭击可能发生，由于牙菌斑的细菌作用于我们饮食中的糖，或作为一个直接结果，酸溶解食物上溶掉了在我们牙齿表面上的珐琅。
Acid attacks can happen as a result of plaque bacteria acting on the sugars in our diet, or as a direct result of the acids in food dissolving away the enamel on the surfaces of our teeth.
德国的科学家利用X射线光电光谱得到了牙齿在氟化物处理后的表面细节图像。
Scientists in Germany used X-ray photoelectron spectroscopy to get a detailed image of the surface of a treated tooth.
增白牙膏将可以去除牙齿表面色斑，比如由吸烟，喝茶或咖啡引起来的。
Whitening toothpastes will remove only surface stains, such as those caused by smoking, tea or coffee.
牙齿表面的细菌会把糖转变成乳酸，腐蚀珐琅质并导致蛀牙。
Bacteria living on teeth convert sugar into lactic acid, which erodes enamel and causes tooth decay.
这让我想起了玛格丽特女皇评价理查德三室的话，“恶犬，牙齿长在眼睛之前的动物，表面上可怜羊羔却在舔舐他的鲜血”。
Hearing that reminded me of Queen Margaret's words in “Richard III”: “That dog, that had his teeth before his eyes, / To worry lambs and lap their gentle blood…” But he won't succeed.
科学家在以往对其它种类胡子鲶鱼进行的研究中发现，它们通常使用造型独特的牙齿从沉入水底的树木表面刮取有机物充饥。
Other so-called suckermouth armored catfish species use their unique teeth to scrape organic material from the surfaces of submerged wood.
牙齿表面的电子显微镜扫描图。
Low power scanning electron microscope image of tooth surface, computer-coloured yellow on blue background.
德国科学家利用X射线光电子光谱法绘制出一个治疗过的牙齿表面的详细图像。
Scientists in Germany used X-ray photoelectron spectroscopy to get a detailed image of the surface of a treated tooth.
因为即使再认真的刷牙也只能到达所有牙齿表面的60%。
Even the most careful brushing reaches only three-fifths of all tooth surfaces.
你需要食物，特别是甜食和粘性食物，你口腔中的细菌就会利用它产酸并损害牙釉质（牙齿表面光亮的那一层）。
You need food, particularly sweet and sticky food, for the bacteria in your mouth to produce acids that will attack the tooth enamel (outer surface of the tooth).
一开始我爸爸给我解释怎么样牙齿才算真正刷干净了：当我用手指划过牙齿表面的时候，能听到犹如鸟叫一般的吱吱声。
In the first my dad explains how I can tell if my teeth are clean: I'll hear squeaking, like birds chirping, when I run my finger across the tops of them.
牙膏和饮水中的氟化物能够保护牙齿的表面，但在后面的磨牙需要特别的保护。
Fluoride in toothpaste and in drinking water protects the smooth surfaces of teeth but back teeth need extra protection.
为了保持健康的牙齿和牙龈重要的是，无论是刷毛接触牙齿表面和牙龈线。
To maintain healthy teeth and gums it is important that bristles contact both the tooth surface and the gumline.
牙齿表面的状态不好，会导致马难以维持恰当的体重。
Poor tooth surface impacts the horse's capability to maintain a proper weight.
用含有颗粒的抛光膏进行抛光能够清除牙齿表面污垢。
Polishing with a gritty paste can remove stains on a tooth's surface.
而另一个清洁模式则是左右震动，幅度较大，用于清洁牙齿表面污渍。
And the other one is to clean the left and right vibration, a larger range for cleaning the surface of the teeth stains.
牙垢膜是由牙齿表面细菌形成的黏膜，会制造酸性物质并侵蚀珐琅质。
Plaque is the sticky film of bacteria that forms on the teeth and produces acids which dissolve the tooth enamel.
口香糖衣领倾角向下就内，外表面的每一个齿，但上升之间的牙齿。
The gum collar dips downwards on the inner and outer surface of each tooth but rises between the teeth.
研究者们测试了数百颗取下来的牙齿所承受的不同程度的机械压力，并研究了发生在牙齿表面和深层的压力。
The researchers applied varying degrees of mechanical pressure to hundreds of extracted teeth, and studied what occurred on the surface and deep inside them.
下一步，刷你牙齿的外表面。
现在它几乎是仅用作表面的或非必须的，作为出生控制或牙齿矫正。
Now it is regarded as just about as cosmetic, and as non-essential, as birth control or orthodontics.
磨擦剂作为牙膏的组分之一，在其中起着重要的作用，它能有效的除去附着在牙齿表面的污垢和有色物质。
As one of these components, friction modifier plays an important function for removing the dirt and colored substance attached to the surface of tooth.
另一方面，硬毛牙刷刷，刷的积极可能导致经济衰退的牙龈和牙齿的珐琅质磨损，暴露根耦合表面。
On the other hand, a hard-bristled brush, coupled with vigorous brushing can result in recession of the gums and the abrasion of tooth enamel and exposed root surfaces.
菌斑生物膜是粘附于牙齿表面的微生物团体，是龋病发生的始动因子。
Plaque biofilms, a well-organized microbial community on dental surface, is a major etiological factor of caries.
切割痕迹是骨骼和牙齿（化石）上一种常见的表面改造痕迹，也是西方微观埋藏学研究的重要内容。
Cutmarks were a kind of surface modification marks on bones and teeth(fossils), which were an important aspect of microscopic taphonomy research.
研究无机填料、功能单体及牙齿表面酸蚀与否等因素对单组分可见光固化齿科正畸粘接剂剪切强度的影响。
The influence of inorganic filler, functional monomer, etching treatment of teeth surface, etc on the shearing strength of one-component visible-light curing orthodontic adhesive was studied.
方法：从牙齿表面获得完整的菌斑生物膜标本，运用激光共聚焦显微镜对其进行断层扫描和分析。
METHODS: the intact dental plaque biofilm specimen was generated on the tooth surface. The specimens of the biofilms were imaged and analyzed by confocal laser scanning microscope.
你可以自己清除牙齿表面的色斑。
You may be able to get rid of superficial teeth stains by yourself.
你可以自己清除牙齿表面的色斑。
You may be able to get rid of superficial teeth stains by yourself.
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