A dentist may decide to extract the tooth to prevent recurrent trouble.
牙医可能会决定拔掉这颗牙，以防复发。
牙医拔掉了那颗牙。
At this stage, the tooth can repair the weakened area with the help of fluoride and minerals in saliva.
在这个阶段，牙齿可以借助唾液中的氟化物和矿物质修复脆弱的部位。
I got an abscess so he took the tooth out.
我牙龈脓肿，所以他把那颗牙齿拔掉了。
Deposits of plaque build up between the tooth and the gum.
牙菌斑的沉积物在牙齿和牙龈间形成。
He thought he would hold the tooth in reserve for the present, and seek further.
他想暂时把这颗牙留着，再去找别的东西。
If left untreated, decay goes deeper and deeper into the tooth.
如果不及时治疗，蛀牙会越来越深。
"If you sleep with your mouth open, she will be able to see the tooth hole," said Sammy. The class laughed. Come on! But that just gave me a great idea! "How did you get the Tooth Fairy to leave the money?"
“如果你张着嘴睡觉，她就能看到牙洞。”萨米说。全班笑了。拜托！但这给了我一个好主意！“你是怎么让牙仙子留下钱的？”
It's the tooth that's important.
妈妈说，“牙齿才是最重要的。”
It is considered the living part of the tooth.
被认为是牙齿具有生命力的一部分。
Meanwhile, my tongue was busy searching out the hole where the tooth had been.
与此同时，我的舌头正在忙着寻找刚拔掉的那颗牙的伤口。
Using fluorides at home and in the dental office can help the tooth repair itself.
在家或牙科诊所使用氟化物可以帮助牙齿自己修复。
Gently slide it into the space between the gum and the tooth until you feel resistance.
接着牙线轻轻地滑到牙齿与牙龈的间隙中直到感觉到阻力。
With most electric toothbrushes you only need to touch the tooth with the bristles.
使用大多数的电动牙刷，你只需要把刷毛碰到牙齿就行了。
You need to remove plaque from all sides of the tooth and where the tooth meets the gums.
你需要清除牙齿各个面以及龈沟里的菌斑。
Expectant mothers may not know that what they eat affects the tooth development of the fetus.
准妈妈也许不知道她们所吃的食物会影响到胎儿的牙齿发育。
How about a big set-piece speech in which I reveal that the tooth fairy doesn't really exist?
搞场事先布置好的大型演讲让我出来揭露牙仙并不存在，你看怎样？
"Your dentist can see if you're grinding, because areas of the tooth enamel will be worn smooth."
“你的牙医可以检查出你有没有磨牙，因为牙齿珐琅质的磨损区会是光滑的。”
One doctor claims that sleep bruxism results in 250 lbs. of pressure on the tooth [source: NY Times].
一个医生声称睡觉时磨牙能施加250磅的压力到牙齿上。
"Cornett's attorney, Jack Johnston, said the tooth" looks like it would be from a herbivorous rodent of some type.
科内特的律师杰克·约翰斯顿说，这颗牙“看起来像是某种食草的啮齿类动物的牙。”
Cornett's attorney, Jack Johnston, said the tooth "looks like it would be from a herbivorous rodent of some type."
科内特的律师杰克·约翰斯顿说，这颗牙“看起来像是某种食草的啮齿类动物的牙。”
Pierson went to bed very excited about the prospect of the tooth fairy financially compensating him for his double loss.
小皮上床睡觉时高兴坏了，一个劲幻想牙仙会怎样弥补他双份的损失。
Use your thumbs and forefingers to gently pull the floss from the gumline to the top of the tooth to scrape off plaque.
用拇指和食指沿着齿龈向牙冠方向缓和地拉扯牙线，以去除牙菌斑。
Use your thumbs and forefingers to gently pull the floss from the gumline to the top of the tooth to scrape off plaque.
用拇指和食指沿着齿龈向牙冠方向缓和地拉扯牙线，以去除牙菌斑。
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