Why do back teeth decay so easily?
为何后磨牙如此容易被侵蚀？
To understand what happens when your teeth decay, it's helpful to know what's in your mouth naturally. Here are a few of the elements.
为了理解当你的牙齿龋坏时都发生了什么，了解你口腔的自然状况是有益的。以下是几个基本组成要素。
Sugar can cause tooth decay by being used as a food source for the bacteria found on our teeth, which causes plaque.
糖通过被那些存在我们牙齿的引起斑块的细菌作为一种食物来源，可以导致牙齿腐烂。
Cavities in teeth are caused by decay.
牙齿上的空洞是由龋蚀造成的。
Sugar can cause tooth decay by being used as a food source for the bacteria found on our teeth which causes plaque.
糖通过被那些存在我们牙齿的引起斑块的细菌作为一种食物来源，可以导致牙齿腐烂。
Such drinks are crammed full of sugars and acid that attack our teeth and may result in dental decay.
这种饮料是挤满充满糖分和酸性说，攻击我们的牙齿，并可能导致牙齿老化的问题。
As we age, we produce less saliva, which washes away bacteria, so teeth and gums are more vulnerable to decay.
随着我们年老，我们分泌更少能冲洗掉细菌的唾液，因此牙齿和牙龈更容易退化。
Toothpastes don't just clean teeth anymore. They have special ingredients for preventing decay, plaque control, tartar control, whitening, gum care or helping sensitive teeth.
牙膏并不清洁牙齿，他们只是含有特殊物质预防龋坏，控制菌斑，增白，保护牙龈或者保护改善牙齿过敏。
The acid from the bacteria can decay your teeth.
而产生的酸可以腐蚀你的牙齿。
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。
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。
Long before the invention of electric drills and anesthesia early humans drilled teeth to treat decay, according to research published Wednesday.
科学家日前公布的一项研究结果显示，早在电钻和麻醉剂发明之前，早期人类就开始通过在牙齿上钻孔的方法来医治蛀牙。
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。
In young children, teeth that have recently emerged have weak enamel and are highly susceptible to acid decay.
最近表明，小孩子的牙釉质极易受酸侵蚀。
Tooth decay happens when teeth are attacked by acid, and this can happen in two ways.
蛀牙发生时，牙齿受到攻击，酸，这可以发生在两个方面。
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。
Flossing is the only way to remove the plaque that accumulates between the teeth and below the gum line — areas where a toothbrush can't reach and decay often begins.
牙线洁牙是去除聚集在牙齿之间和牙龈底部牙斑的唯一办法。这些地方因牙刷接触不到会发生腐蚀。
The breakthrough was made on mice but could pave the way for those who lose teeth to decay or injury being able to "grow" replacements.
虽然这项技术首先在老鼠身上取得突破性进展，但是仍可以为那些因食物腐蚀或受创而失去牙齿的人获得“长出”替代物的机会铺平道路。
When your teeth begin to (decay), you should go to see a dentist at once.
如果你的牙齿开始蛀了，就应该马上去看牙医。
Dear: recently my teeth hurt, because I miss you every night, it feels so sweet, and will decay.
亲爱的：最近我牙齿痛，因为常常晚上想你，那感觉太甜蜜了，会蛀牙。
Baby: recently my teeth hurt, because I miss you every night, it feels so sweet, and will decay.
宝贝：最近我牙齿痛，因为常常晚上想你，那感觉太甜蜜了，会蛀牙。
Fluoride also helps teeth damaged from the decay process and breaks down bacteria on teeth.
氟化物也能帮助牙齿来自腐朽过程的损坏和牙齿中微生物的破坏。
In order to protect his teeth against dental decay (erosion), sandy' mother declared to prohibit excessive sweet diets and desserts.
为了防止牙齿被蛀蚀，桑迪的妈妈声明，禁止他过度地吃甜食和饭后甜点。
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。
The dentist could detect no sign of decay in her teeth.
牙医在她的牙齿上找不出腐蚀的迹象。
Having sealants put on teeth before they decay will also save time and money in the long run by avoiding fillings, crowns, or caps used to fix decayed teeth.
在牙齿遭受侵蚀前就涂上保护胶，从长远看，能够通过避免填充、修补牙冠等修复受损牙齿的需要来节省时间和金钱。
Did he lose any baby teeth because of decay or infection?
他有没有因为蛀牙或感染而脱落乳牙？
Did he lose any baby teeth because of decay or infection?
他有没有因为蛀牙或感染而脱落乳牙？
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