小白老师说：今天的主题是向病人解释龋齿。口腔临床英语对话系列收录了口腔临床医患、医护之间的对话，非常适合练习口语和听力。当然，也是非常好的医博英语考试长对话素材。

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An Explanation of Dental Caries 有关龋齿的解释

D=Dentist, P=Patient

P: Why do I have so manycavities, Doctor?

医生，为什么我有这么多蛀牙？

P: It seems that every time I go to the dentist，there are at least three or four new ones.

好像是每次去看医生至少发现三、两颗性的蛀牙。

P: Many of my fillings have been replaced two or three times.

我补过的牙有好些还重补过两三次。

D: Your teeth are very susceptible to decay.

你是容易患蛀牙的。

D: The reasons for increased caries susceptibility in certain patients aren’t fully understood by dental scientists.

牙科的科学家们还没有完全弄清楚某些病人易患蛀牙的原因。

D: There are many complicated factors involved in the formation of dental caries.

造成蛀牙有许多复杂的原因。

P: Can you give me an example，Doctor?

医生， 你能给我举个例子吗？

D: Heredity，prenatal development and diet are some of the factors that are important.

遗传，出生前的发育状况和食物都是重要的因素。

D: The body chemistry of an individual and particularly of the mouth and saliva are also important.

每一个人本身的化学反应， 特别是口腔和唾液的化学反应也是重要的因素。

P: What is the most important? 那最重要的因素是什么？

D: The most important and practical thing for you to know about tooth decay is that it’s caused by bacteria.

最重要最实际的就是蛀牙是细菌造成的龋齿。

D: You can control the oral bacteria with daily home care.

你可以通过日常的保护来控制口腔的细菌。

D: If you remove the bacteria from your teeth by effective tooth-brushing and dental flossing, you’ll reduce the number of new cavities.

假如你刷牙和牙线使用效率高，就可以使细菌影响减小，这样蛀牙就会少。

P: Is it possible to stop having new cavities?

不再出现蛀牙有可能吗？

D: Yes, you may be able to stop having new cavities.

是的，您有可能阻止新蛀牙的发生。

D: The bacteria on the teeth use starches and sugars in the foods that you eat to form an acid that dissolves enamel.

附在牙齿上的细菌利用你吃的食物中的淀粉、脂和糖， 把它转变成为能够使牙釉质分解的一种酸。

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