SCIENCE REPORT - Oral Health Study

SCIENCE REPORT
–
February 13, 2002: Oral Health Study

By George Grow

This is the VOA Special English SCIENCE REPORT.

A new report examines the problem of tooth and gum disease in the United States. It found that many Americans
are not doing enough to care for their teeth. The report says the biggest problems are the lack of dental health care
for all Americans and the lack of services to prevent disease.

A group called Oral Health America in Chicago, Illinois, released the findings. It used information from recent
government studies to prepare the report. The group’s leader says the report shows the nation needs to be more
concerned about the oral health of its citizens.

One major problem is tooth decay¹. Bacteria in the mouth act on sugars that remain on the teeth
after eating. This action creates acid that damages the tooth. The damage appears as a hole in
the tooth called a cavity². The part of the tooth that has been destroyed by the acid is called tooth
decay.

There are many reasons for diseases of the teeth and gums. The report says many areas in the
United States fail to add enough fluoride to public drinking water. It notes that ten states failed
to provide fluoridated water for at least fifty percent of their population. Fluoride is an element
found in rocks and minerals. Drinking fluoridated water is one of the best ways to prevent tooth
decay.

The report shows that many Americans do not have their teeth examined by a dentist or trained expert. In most
states, one-third or more of the citizens failed to visit a dentist at least once last year.

In addition, a person ’s earnings³ seemed to have a major effect on the services received. Poor people are less
likely to visit a dentist. More than one-hundred-million American adults and children do not have insurance to
help pay for treatment by a dentist.

One area of progress is increased public understanding of oral health issues. The report notes that several states
now employ dental health directors. Oral Health America says the increased understanding is partly a result of
American Surgeon General David Satcher. Two years ago, he released a report on the importance of oral health.

His report noted⁴ that more than thirty-thousand Americans develop cancers in the mouth or throat every year. It
also found that tooth decay is the most common disease among American children. Fifty percent of all six-yearold
children already have tooth decay.

This VOA Special English SCIENCE REPORT was written by George Grow.

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1 decay   

vi.腐烂，衰落；n.腐烂，腐朽，衰败状态

参考例句：

• The vegetables have begun to decay.那些蔬菜已开始腐烂。
• Our powers decay in old age.我们的体力在老年时就衰退。

2 cavity   

n.洞，穴，凹处，龋洞

参考例句：

• There's a cavity in the boy's tooth.这个男孩的牙上有一个洞。
• The dentist carefully located the filling in the cavity.牙医小心地把填塞的东西放入牙洞里。

3 earnings   

n.工资收人；利润，利益，所得

参考例句：

• That old man lives on the earnings of his daughter.那个老人靠他女儿的收入维持生活。
• Last year there was a 20% decrease in his earnings.去年他的收入减少了20%。

4 noted   

adj.著名的，知名的

参考例句：

• The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
• Jim is noted for arriving late for work.吉姆上班迟到出了名。