The survey also shows that bed-time sugar intake, late start of brushing teeth and weak awareness of teeth care are to blame for the bad dental health among Chinese children.

调查结果还显示，导致我国儿童口腔疾病的主要原因为睡前进食含糖食物、开始刷牙时间过晚以及口腔保健意识缺乏。

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A survey of 700 dentists found that brushing teeth too hard was a leading cause of sensitive teeth, reports WebMD.

据WebMD网报道，有一项来自700多名牙医的调查发现，刷牙太用力会导致牙齿对东西敏感。

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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。

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But a survey carried out in 1998 showed that only 13% of adults had no natural teeth - and over half those of pensionable age retained at least some of their natural teeth.

BBC: Dentists warn over ageing teeth