Faustick has cleaned his teeth after every meal for thirteen years and has not had a single decayed tooth.
福斯蒂克已经连续13年每顿饭后都刷牙，一颗蛀牙也没有过。
The tooth also had all the components of normal teeth, including enamel, crown and root, and connective fibers to fix it to bone.
培育的牙齿还具备正常牙齿的所有组成成分，包括釉质、齿冠和牙根，以及使其固定于骨头的结缔组织纤维。
Saliva helps protect teeth and gums from bacteria that cause cavities and gingivitis. So a perpetually dry mouth is more susceptible to tooth decay and gum disease.
唾液可以保护牙齿免受引发牙齿腔洞和牙龈炎的细菌感染，所以长期干燥的口腔更易患这两种疾病。
To see how the brain responds to pain emanating from different teeth, the researchers used fMRI to monitor changes in activity when the upper tooth or the lower tooth was zapped.
为了分析大脑如何对不同牙齿的痛疼作出反应，研究人员利用功能磁共振成像监视上牙或下牙在受到脉冲刺激时的活动。
Children need protein, vitamins, and minerals (especially calcium and phosphorous) to build strong teeth and to resist tooth decay and gum disease.
儿童需要蛋白质、各类维生素和矿物质(尤其是钙，磷)强健牙齿，抵御牙齿被腐蚀和预防牙龈疾病。
By 3-5 years: All teeth may have tartar build-up and some tooth wear.
3 - 5岁，所有的牙齿上都有牙垢，一些牙发生磨损。
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。
The faster the pulse repetition rate, the wider the spacing between the teeth, making each individual tooth easier to identify.
脉冲重复率越高，齿间距越大，各个齿之间也越容易分辨。
Apples also act as a toothbrush, cleaning teeth and killing bacteria in the mouth, which may reduce the risk of tooth decay.
苹果还有牙刷作用，洁齿和杀灭口腔细菌，减少龋齿的危险。
Coming second in the survey is the myth that when your milk teeth fall out, if you put them under your pillow, the tooth fairy will replace them with sixpences.
第2大谎言，如果你的乳牙掉了，你只要把脱落的牙齿放在枕头下，再花上6便士，那么牙齿仙女就会将这些牙重新安回你的嘴里。
The reason is that the acidity in food and beverages causes tooth enamel to soften, and brushing right after eating an acidic meal strips enamel from the teeth, leaving them vulnerable to cavities.
食物和饮料中的酸性会造成牙齿釉质软化，马上刷牙容易得蛀牙。
The only reason to have titanium teeth? Medical reasons, he says, like "if a dog breaks a tooth... it's the same as a crown for a human."
他说，狗嘴里镶钛牙的唯一的理由，只能是因为牙科医学上的原因，“如果狗牙断掉了，也可以像人的牙齿一样，作一个牙冠镶嵌在上边。”
Bacteria living on teeth convert sugar into lactic acid, which erodes enamel and causes tooth decay.
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。
It is a common myth that losing baby teeth due to tooth decay is insignificant because baby teeth fall out anyway.
这是常见的误区，认为宝宝因为蛀牙失去牙齿是无关紧要的，因为宝宝的乳牙总会在将来某一天脱落。
Tooth decay begins when teeth are not cleaned properly after eating.
进食后没有适当清洁牙齿，是蛀牙的导火线。
I have a root canal filling in one of my teeth. The tooth is changing color. Can anything be done about it?
我有一颗牙在牙根管里补过。现在这颗牙变了颜色，有什么办法可以解决？
Sofus the Harbour Seal from the Blue Reef Aquarium in Tynemouth is having his teeth cleaned in preparation for an operation to have a broken tooth removed.
泰因茅斯蓝礁水族馆的斑海豹索菲斯正在刷牙，为拔掉坏牙做准备。
Over-whitening can also cause teeth to become thin and brittle and can lead to high sensitivity and discoloration as tooth enamel becomes translucent.
美白牙齿过度，会使牙齿变得薄弱。同时，由于牙釉质变为半透明状，会导致牙齿高度敏感、变色。
Palmer notes that tooth decay in baby teeth can result in damage to the developing crowns of the permanent teeth developing below them.
Palmer指出婴儿牙齿蛀牙可能会损害它们下方的恒牙牙冠的生长。
Palmer notes that tooth decay in baby teeth can result in damage to the developing crowns of the permanent teeth developing below them.
Palmer指出婴儿牙齿蛀牙可能会损害它们下方的恒牙牙冠的生长。
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