牙齿

You're very funny, Dilly said, grinning.

334"你滑稽透了，"迪丽说，她笑得露出了牙齿。

Third Question: Why do people's teeth discolor upon aging ?

第三个问题：为什么人们的牙齿变色后衰老？

Coffee and soft drinks have a high content of caffeine in them which can discolor your teeth.

远离过量的咖啡和软饮料，咖啡和软饮料含有很多的咖啡碱能够使牙齿变色。

But first, what causes tooth discoloration?

但第一，究竟是什么原因导致牙齿变色？

Discoloration of your teeth is called intrinsic stain and can be treated very good with bleaching.

你牙齿变色的内在要求，是处理得非常好，可以染色与漂白。

The result is thin, translucent, discolored teeth.

产生薄的，半透明的，变色的牙齿。

Usually colored discolored teeth, mostly because of poor oral hygiene, or has bad habits.

通常牙齿着色变黄，多是由于口腔卫生状况不好，或有不良习惯。

Objective To evaluate the effect and safety of cold light tooth whitening kit on bleaching discolored teeth.

目的 评价国产牙齿美白仪漂白变色牙的疗效和安全性。

For an orthodontic case with the discrepancy of the discoordination between the length of palate bone and tooth size or for a case with skeletal discrepancy of the unsymmetry upper and lower jaw in their size and position, the most common treatment i

摘要一般矫正治疗，对于齿槽骨和牙齿大小长度总和的不调和或上下颚骨骨骼性大小、位置不对称，其处置原则通常都以上下颚第一小臼齿或第二小臼齿等4齿做为拔除对象来进行矫正治疗。

For an orthodontic case with the discrepancy of the discoordination between the length of palate bone and tooth size or for a case with skeletal discrepancy of the unsymmetry upper and lower jaw in their size and position, the most common treatment is to extract the upper ahd lower first or the second premolar.

一般矫正治疗，对於齿槽骨和牙齿大小长度总和的不调和或上下颚骨骨骼性大小、位置不对称，其处置原则通常都以上下颚第一小臼齿或第二小臼齿等4齿做为拔除对象来进行矫正治疗。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。