研究:刷牙会降低心脏病风险
文章来源:未知 文章作者:meng 发布时间:2010-05-28 06:55 字体: [ ]  进入论坛
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People who fail to brush their teeth twice a day are putting themselves at risk of heart disease, say researchers.

研究人员称,未能达到一天刷牙两次的人将有患心脏病的风险。

Dentists recommend brushing twice a day
Dentists recommend brushing twice a day

A Scottish study of more than 11,000 adults found those with poor oral hygiene1(卫生) had a 70% increased risk of heart disease compared with those who brushed twice a day.

The British Medical Journal study backs previous work showing a link between gum(牙龈) disease and heart problems.

But a charity said oral health was just one factor in good heart health.

It is known that inflammation(发炎,炎症) in the body, including in the mouth and gums, has an important role in the build up of clogged2(阻塞的) arteries3(动脉) , which can lead to a heart attack.

But this is the first time that researchers have looked at whether the frequency of teeth brushing has any bearing on the risk of developing heart disease.

Data was collected on lifestyle behaviours, such as smoking, physical activity and oral health routines.

Participants were also asked how often they visited the dentist and how often they brushed their teeth.

Then nurses collected information on medical history and family history of heart disease, took blood pressure and blood samples.

Overall, six out of 10 people said they visited the dentist every six months and seven out 10 reported brushing their teeth twice a day.

Over the eight-year study there were 555 "cardiovascular(心血管的) events" such as heart attacks, 170 of which were fatal.

Taking into account factors that affect heart disease risk, such as social class, obesity4, smoking and family history, the researchers found those who brushed twice a day were at a lower risk.

Those with poor oral hygiene also tested positive in blood samples for proteins which are suggestive of inflammation.

Cause and effect

Study leader Professor Richard Watt5, from University College London, said future studies will be needed to confirm whether the link between oral health behaviour and cardiovascular disease "is in fact causal or merely a risk marker".

Judy O'Sullivan, senior cardiac(心脏的) nurse at British Heart Foundation, said: "If you don't brush your teeth, your mouth can become infected with bacteria which can cause inflammation.

"However, it is complicated by the fact that poor oral hygiene is often associated with other well known risk factors for heart disease, such as smoking and poor diet."

She added: "Good personal hygiene is a basic element of a healthy lifestyle.

"But if you want to help your heart, you should eat a balanced diet, avoid smoking and take part in regular physical activity."

Professor Damien Walmsley, scientific adviser6 to the British Dental Association, added it was still unclear whether there was a definite cause and effect between oral hygiene and heart disease.

"Whatever the true position is, we can say with certainty that if people brush teeth twice a day with fluoride(氟化物) toothpaste, visit the dentist regularly and restrict sugary snacks(快餐,小吃) to mealtimes; that this will go a long way towards keeping the teeth and gums in a healthy state for life."



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1 hygiene Kchzr     
n.健康法,卫生学 (a.hygienic)
参考例句:
  • Their course of study includes elementary hygiene and medical theory.他们的课程包括基础卫生学和医疗知识。
  • He's going to give us a lecture on public hygiene.他要给我们作关于公共卫生方面的报告。
2 clogged 0927b23da82f60cf3d3f2864c1fbc146     
(使)阻碍( clog的过去式和过去分词 ); 淤滞
参考例句:
  • The narrow streets were clogged with traffic. 狭窄的街道上交通堵塞。
  • The intake of gasoline was stopped by a clogged fuel line. 汽油的注入由于管道阻塞而停止了。
3 arteries 821b60db0d5e4edc87fdf5fc263ba3f5     
n.动脉( artery的名词复数 );干线,要道
参考例句:
  • Even grafting new blood vessels in place of the diseased coronary arteries has been tried. 甚至移植新血管代替不健康的冠状动脉的方法都已经试过。 来自《简明英汉词典》
  • This is the place where the three main arteries of West London traffic met. 这就是伦敦西部三条主要交通干线的交汇处。 来自《简明英汉词典》
4 obesity Dv1ya     
n.肥胖,肥大
参考例句:
  • One effect of overeating may be obesity.吃得过多能导致肥胖。
  • Sugar and fat can more easily lead to obesity than some other foods.糖和脂肪比其他食物更容易导致肥胖。
5 watt Lggwo     
n.瓦,瓦特
参考例句:
  • The invention of the engine is creditable to Watt.发动机的发明归功于瓦特。
  • The unit of power is watt.功率的单位是瓦特。
6 adviser HznziU     
n.劝告者,顾问
参考例句:
  • They employed me as an adviser.他们聘请我当顾问。
  • Our department has engaged a foreign teacher as phonetic adviser.我们系已经聘请了一位外籍老师作为语音顾问。
TAG标签: disease teeth heart brush
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