口腔临床英语对话 第12期:根管治疗法(3)

 　　I have a root canal filling in one of my teeth. The tooth is changing color. Can anything be done about it?

　　我有一颗牙在牙根管里补过。现在这颗牙变了颜色，有什么办法可以解决？

　　Sometimes a tooth with a root canal filling will change color.

　　牙根管补过的牙有时会变色。

　　I can treat it by bleaching² it with superoxol (30%H2O2).

　　我可以用30%的过氧化氢液来漂白牙齿。

　　If the crown of the tooth is weak it would be better to make a porcelain³, acrylic, or ceramic⁴ crown.

　　假如牙冠薄弱，那么还是做上瓷的、透明合成树脂的或者是烤瓷的牙冠。

　　If the crown of the tooth is strong, I'd rather bleach¹ it. Bleaching a tooth isn't very difficult.

　　假如牙齿结实的话，还是漂白好。漂白牙齿并不困难。

　　根管治疗法.jpg

　　What is the first step, Doctor?

　　医生，第一步怎么做？

　　The first step is to remove all of the old filling.

　　第一步先把所有的填补物都挖掉。

　　A rubber dam is needed to prevent the superoxol from burning the gingival.

　　需要做个橡皮障免得牙龈被烧伤了。

　　How is the superoxol applied⁵?

　　怎样使用30%的过氧化氢液？

　　The Superoxol is applied to the tooth with a little bit of cotton.

　　可以用小棉球将30%的过氧化氢液涂到牙齿上。

　　The bleaching is done by applying heat to the tooth with a hot metal dental instrument.

　　漂白牙齿要用一种发热的金属器械把热送达牙齿上。

　　There's no discomfort⁶ associated with this technique.

　　进行这种疗法并不会有什么不舒服。

　　What color does this treatment make the tooth?

　　治疗完了之后牙齿会变成什么颜色。

　　The tooth might be a very light color after it's bleached⁷.

　　牙齿经过漂白之后会变得十分亮，

　　However, it will change to a normal color in less than one week.

　　但是到了一个多星期之后就会变得与正常的牙齿颜色一样。

1 bleach   

vt.使漂白；vi.变白；n.漂白剂

参考例句：

• These products don't bleach the hair.这些产品不会使头发变白。
• Did you bleach this tablecloth?你把这块桌布漂白了吗？

2 bleaching   

漂白法，漂白

参考例句：

• Moderately weathered rock showed more intense bleaching and fissuring in the feldspars. 中等风化岩石则是指长石有更为强烈的变白现象和裂纹现象。
• Bleaching effects are very strong and show on air photos. 退色效应非常强烈，并且反映在航空象片上。

3 porcelain   

n.瓷；adj.瓷的，瓷制的

参考例句：

• These porcelain plates have rather original designs on them.这些瓷盘的花纹很别致。
• The porcelain vase is enveloped in cotton.瓷花瓶用棉花裹着。

4 ceramic   

n.制陶业，陶器，陶瓷工艺

参考例句：

• The order for ceramic tiles has been booked in.瓷砖的订单已登记下来了。
• Some ceramic works of art are shown in this exhibition.这次展览会上展出了一些陶瓷艺术品。

5 applied   

adj.应用的；v.应用，适用

参考例句：

• She plans to take a course in applied linguistics.她打算学习应用语言学课程。
• This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。

6 discomfort   

n.不舒服，不安，难过，困难，不方便

参考例句：

• One has to bear a little discomfort while travelling.旅行中总要忍受一点不便。
• She turned red with discomfort when the teacher spoke.老师讲话时她不好意思地红着脸。

7 bleached   

漂白的，晒白的，颜色变浅的

参考例句：

• His hair was bleached by the sun . 他的头发被太阳晒得发白。
• The sun has bleached her yellow skirt. 阳光把她的黄裙子晒得褪色了。