你会刷牙吗？

西西

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Give plaque the brush-off!
Brushing your teeth twice a day can save you hundreds of dollars--sometimes thousands--in dental work. But in spite of it being such a simple task, lots of people brush their teeth incorrectly, either skipping around so much they don't really clean anything, or rubbing so hard that they actually damage their teeth and gums. We'll show you the proper way to brush your teeth and keep your smile in tip-top shape.
Why is brushing so important? Because it interrupts the growth of plaque--a thin, sticky film of bacteria that plays a primary role in tooth decay and gum disease. When you brush your teeth, you remove most of the plaque-causing bacteria. But some stay behind. These bacteria can set up a colony and begin damaging your teeth within 24 hours--which is why dentists recommend brushing twice a day to consistently interrupt their growth.
Flossing is another important component of cleaning your teeth and interrupting bacteria growth. It should be done at least once a day, before brushing. If you need to brush up on your flossing skills, visit 2torial #0626: Floss Your Teeth to get the lowdown on this important step.
Choose your toothbrush
Dental researchers have discovered that toothbrushes with soft, nylon or polyester bristles with rounded tops do the best job of brushing teeth. Stiff bristles with sharp edges can damage teeth and gums, while natural bristles are porous and can harbor bacteria.
Your toothbrush should be easy to handle, and its head should be small enough to fit into your mouth easily. The modern trend in toothbrushes is toward smaller heads that can be used more precisely around gumlines and between teeth.
If the bristles on your toothbrush no longer stick up straight but rather flare to the side, it's time for a new one. Dental experts say it's a good idea to replace your toothbrush every two to three months.
Choose your toothpaste
Here's what toothpaste can do for you:
Remove plaque Resist decay Promote remineralization of the teeth Clean and polish Remove stains Freshen breath
There are a wide variety of toothpastes, but whatever you choose, make sure it includes fluoride. Fluoride only makes up about 0.24 percent of any toothpaste, but it's the most essential ingredient for dental health because it fights plaque and cavities. Beyond fluoride, take your pick from formulations (gel, paste, powder) and extras like tartar control and whiteners.
Learn the proper brush stroke
Does technique really matter? Yes it does. The most popular technique, called the Bass technique, concentrates on the third of the tooth nearest the gumline and the gum itself, where plaque tends to concentrate. By thoroughly cleaning this area before brushing the rest of the tooth's surfaces, you can wipe out most of the problem-causing bacteria in your mouth.
To practice the proper brush stroke, hold the toothbrush head (without any toothpaste on it yet) at a 45-degree angle toward your gums. The bristles should be gently flexed so they surround the gum tissues and the portion of the tooth closest to the gumline. Using either a circular or jiggling, up-and-down motion, brush this area with your toothbrush. After several seconds cleaning this area, slide the toothbrush away from the gum, over the tooth's surface toward the open mouth area. This will clean the rest of the tooth's side surface and brush the loosened bacteria away from and off of the tooth. This technique also stimulates the gum.
A modified version of this technique uses more up-and-down motion over the entire tooth, usually one-and-a-half teeth at a time. Yet another technique uses a circular or elliptical motion over the entire tooth, one-and-a-half teeth at a time.
Brush your teeth
To brush your teeth, put a pea-sized drop of toothpaste on your toothbrush, then cover all the surfaces of all the teeth in your mouth, using the Bass technique. Brush all outside surfaces first, both upper and lower, and then all inside surfaces next, upper and lower. Don't skip any teeth as you go around. Once you've done all the sides, you can gently use that old back-and-forth motion to clean the top chewing surfaces of your teeth.
Finally, you'll want to gently brush your tongue to remove more bacteria and freshen your breath. If you have trouble with gagging, stick your tongue out to brush it, or consider purchasing a tongue scraper. You can also brush the roof of your mouth.
When you're finished, thoroughly rinse your mouth with water and spit out the toothpaste.
The whole process should take about three minutes. Most people take less than a minute to brush their teeth, but this isn't long enough to do a thorough cleaning.
When you think about it, three minutes twice a day is a small investment in terms of all the prevention it will give you. Cavities and gum disease are no fun. Brush them away with your handy toothbrush, and you can smile all the way to the dentist's office.


刷掉牙菌斑!
每天刷两次牙能为你节省数百美元 -- 有时数以千计的 – 在牙科工作上。尽管是件简单的事，但是有很多人刷牙不当，要么打马虎实际上根本没清理掉什么东西，要么刷的太用力反而损害了牙齿和牙龈。我们将以标题提示的方式告诉你正确的刷牙方式让你保持笑口常开。
在你开始之前…
为什么刷牙这么重要？因为它中断了牙菌斑的生长 -- 一层薄薄的附着的细菌，而这些细菌正是蛀牙和牙周疾病的主要原因。当你刷牙的时候，你消除了大部分形成斑块的细菌。但有一些留了下来。在24小时内这些细菌会建立领地并开始破坏你的牙齿 -- 这就是为什么牙科医生建议每天刷两次牙来始终打断它们的生长。
使用牙线是清理牙齿和干扰细菌生长的另外一个重要组成部分。每天至少使用一次，在刷牙之前。如果你想提升使用牙线的技巧，访问教程#0626:使用牙线来了解这方面的细节。
步骤1:选择牙刷
牙科研究人员发现柔软的，尼龙或者聚酯的环状顶端的刷毛的牙刷最适合用于刷牙。像边缘锋利而且太硬的刷毛会损害牙齿和牙龈，而天然的刷毛又多孔会滋生细菌。
牙刷应该容易使用，并且它的头部应该足够小适合你的口腔。带有更小刷头的牙刷是现在牙刷发展的趋势可更精确得用于牙龈线和牙齿交界处。
如果你的牙刷的刷毛不直了，而是明显的偏向一边了，是时候换根新的了。牙科专家认为每两三个月应该换一次牙刷。
步骤2:选择牙膏
以下是牙膏的作用:
清除牙菌斑
抑制蛀牙
促进牙齿再矿化
光洁牙齿
清除牙垢物
清新口气
牙膏的种类很多，但是不管你选择哪种，确保里面含有氟化物。氟化物仅占牙膏成分的0.24%,但是它却是牙齿健康的最重要因素，因为它可以抵制牙菌斑和蛀牙。除了氟化物，你可以根据牙膏的配方(胶，膏，粉)和在其他方面的作用比如抑制牙结石和增白牙齿来选择牙膏。
步骤3:学会正确的刷牙方式
刷牙的方法真的很重要吗？这个问题的答案是肯定的。最受欢迎的方法是所谓的贝氏(Bass)刷牙法，集中在牙齿的三分之一最接近牙龈线和牙龈本身的地方，那里是牙菌斑容易集中的地方。在刷牙齿其余表面之前彻底清洁这块区域，你可以消灭口腔中大部分会导致问题的细菌。
开始练习正确的刷牙方式，保持刷头(上面还没有牙膏)与牙龈成45度角。刷毛应该轻轻弯曲使它们涵盖牙龈组织和牙齿最靠近牙龈线的部位。牙刷以圆周或者上下簸动的方式来刷这块区域。清洁这块区域几秒钟后，牙刷从牙龈经过牙齿表面滑到口腔的开放区域。这样就能清洁牙齿表面的其它地方并把疏松的细菌从牙齿上去除掉。这种方法也会刺激牙龈。
这种方法改进后的版本是更多的使用上下移动来覆盖整个牙齿，通常一次1.5个牙齿。另外一种方法是采用圆周或椭圆运动来覆盖整个牙齿，一次1.5个牙齿。
步骤4:刷牙
开始刷牙，把豆粒大小的牙膏置于牙刷上，然后用贝氏(Bass)法涵盖你口腔中所有牙齿的所有表面。先刷所有外表面，上下，然后是所有的内表面，上下。不要跳过任何一颗牙齿。一旦刷完了内外两面，轻轻地使用旧式前后移动的方式来清洁牙齿的咀嚼面。
最后，你可以轻轻地刷下你的舌头来去除更多的细菌和清新你的口气。如果你有呛喉的困扰，伸出舌头再刷它，或者考虑购买舌刮。你也可以刷下口腔的顶部。
刷完后，彻底漱口并吐出牙膏。
整个过程应该大约需要3分钟。大部分人只花了不到一分钟时间来刷牙，但从彻底的清洁的角度来说这是不够的。
你可以想想看，按照刷牙带给你的牙齿所有的预防作用来说，每天两次，一次三分钟确实是一个很小的投资。蛀牙和牙周疾病可不是件有趣的事。用你手边的牙刷把它们刷走，然后你就可以微笑的走向牙科医生的办公室了。

乐乐

我每天刷2次牙  漱口3次