How often?
"The best way to prevent tooth decay is to brush teeth twice daily with a fluoride toothpaste to remove
plaque, limit the frequency, and amount of sugary food and drinks consumed in your diet, and see the dentist regularly.
Don'ts
1. Brush for long enough - research indicates that people only brush for 45 seconds
2.
Rinse the mouth after brushing - fluoride helps to prevent, control and even stop tooth decay - but
rinsing the mouth out
dilutes the concentration of fluoride, so SPIT, don't rinse.
3. Brush too soon after eating - as
enamel on teeth is
softened after eating especially with sugary foods - it's best to wait an hour before brushing which allows the tooth to harden up more.
4. Use a hard
bristle toothbrush as this can damage the soft tissues in the gums.
5. Don't brush too hard - the
bristles should lightly sweep the tooth.
Dos
1. Brush for at least two minutes, twice daily, with a fluoridated toothpaste
2. Brush last thing at night and at least on one other occasion
3. Use a small headed toothbrush with medium bristles.
4. Put a pea-sized blob of fluoride toothpaste on your toothbrush.
5. Brush along the gum line as well as the teeth themselves
6. Brush all surfaces of the teeth, including the outer, inner and chewing surfaces as well as the hard-to-reach back teeth and areas around fillings, crowns or other restorations.
If you have spaces between teeth, it is best to clean these with an interdental or single-tufted brush. Where the spaces between teeth are too tight to fit such a brush, use dental floss or tape.
7. If you are unsure about the effectiveness of brushing, use disclosing tablets after brushing to highlight any areas you may have missed.
There is good evidence that a small-headed counter oscillating electric toothbrush helps in removing dental plaque but they must be used correctly and your dentist or hygienist will advise.
相关单词：plaque
plaque解释：n.饰板，匾，(医)血小板
plaque例句：
There is a commemorative plaque to the artist in the village hall.村公所里有一块纪念该艺术家的牌匾。
Some Latin words were engraved on the plaque. 牌匾上刻着些拉丁文。
相关单词：rinse
rinse解释：v.用清水漂洗，用清水冲洗
rinse例句：
Give the cup a rinse.冲洗一下杯子。
Don't just rinse the bottles. Wash them out carefully.别只涮涮瓶子，要仔细地洗洗里面。
相关单词：rinsing
rinsing解释：n.清水，残渣v.漂洗( rinse的现在分词 )；冲洗；用清水漂洗掉（肥皂泡等）；（用清水）冲掉
rinsing例句：
Pablo made a swishing noise rinsing wine in his mouth. 巴勃罗用酒漱着口，发出咕噜噜噜的声音。 来自辞典例句
The absorption of many molecular layers could be reestablished by rinsing the foils with tap water. 多分子层的吸附作用可用自来水淋洗金属箔而重新实现。 来自辞典例句
相关单词：dilutes
dilutes解释：稀释，冲淡( dilute的第三人称单数 )； 削弱，使降低效果
dilutes例句：
On the plus side, wind dilutes and scatters air pollutants, and carries pollen. 从好处来说，风能稀释和驱散空气中的污染物质，传播花粉。
Ubiquity might not be toxic to authenticity, but it certainly dilutes it. 普遍性或许不至于毒害原真性，但确实会削弱它。
相关单词：enamel
enamel解释：n.珐琅，搪瓷，瓷釉；(牙齿的)珐琅质
enamel例句：
I chipped the enamel on my front tooth when I fell over.我跌倒时门牙的珐琅质碰碎了。
He collected coloured enamel bowls from Yugoslavia.他藏有来自南斯拉夫的彩色搪瓷碗。
相关单词：softened
softened解释：（使）变软( soften的过去式和过去分词 )； 缓解打击； 缓和； 安慰
softened例句：
His smile softened slightly. 他的微笑稍柔和了些。
The ice cream softened and began to melt. 冰淇淋开始变软并开始融化。
相关单词：bristle
bristle解释：v.（毛发）直立，气势汹汹，发怒；n.硬毛发
bristle例句：
It has a short stumpy tail covered with bristles.它粗短的尾巴上鬃毛浓密。
He bristled with indignation at the suggestion that he was racist.有人暗示他是个种族主义者，他对此十分恼火。
相关单词：bristles
bristles解释：短而硬的毛发，刷子毛( bristle的名词复数 )
bristles例句：
the bristles on his chin 他下巴上的胡楂子
This job bristles with difficulties. 这项工作困难重重。
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