龋

To Dec. in 2004. Of all examined students,20 433 catched with poor eyesight, the incidence was 30.48%;11 887 with decayed teeth （17.33%）, 14 715 with physiology goiter struma （21.95%）, 1 811 with color weakness （2.70%）, and 488 with amygdalae inflammation （0.73%）.

结果调查学生67036人，视力不良20433人，患病率30、48％；龋齿患病人数11887人，龋患率17.73％；生理性甲状腺肿大14715人，肿大率21.95％；色弱1811人，患病率2.70％；扁桃体炎488人，患病率0.73％。

Or 7 accessional teeth in the supermaxilla and submaxilla being rather deep and caries being superficial were treated by means of fissure blockage.

在 6 0例青少年中选择 346颗磨牙(上下颌第 6、7恒磨牙的窝沟过深，浅龋)进行窝沟封闭。

The suppliance of this person on bended knees that buys cloth says: My cloth is worth 150 money, I give you again additionally 150 money, put me be still no good?

人家给染完都一年多的时间了，这人还不肯来龋染匠一气之下就揪住了他索要三百钱，不然，就拉扯着去打官司。

Methods: The normal enamel and enamal with artificial caries were put into the middle bottles of four titrate systems under the same conditions.

将不同面积(12、24、48、96 mm2)健康的和有人工龋的釉质块放在同样条件不同体外滴定系统的中瓶内，每个系统每4 h投入1片缓释氟粘贴片，共30片。

Tooth wear is defined as the loss of the tooth substance which is not caused by dental plague, caries and injuries.

牙齿磨损是指在没有菌斑、龋坏及外伤情况下牙体组织丧失的现象。

One of the important cariogenic virulence factors of these organisms is their ability to form biofilms.

变形链球菌是公认的主要致龋菌，其重要的毒力因子之一就是在牙表面形成生物膜。

Methods By use of random sampling, 200 5yearold and 200 12yearold children from nonferrous metal industrial areas and the same number children from nonindustrial areas were examined, which included conditions of dental caries, oral hygiene and dental fluorosis in 12 yearold children. Meanwhile, fluoride concentration in drinking water was measured. Results For the 5 yearold children, the prevalence and DMF index had no statistical difference between the industrial areas and nonindustrial areas.

选择有色金属基地儿童作为研究对象，以临近非工业区作为对照区，采用随机抽样的方法分别抽取有色金属工业区与非工业区5岁和12岁儿童各200名，共800名，调查儿童龋病患病状况、口腔卫生状况和12岁儿童氟牙症状况，并测定当地饮水氟质量浓度。

Preventing teeth decay: People normally believe that the fluorine in the tea can increase the resistance of the teeth enamel to the erosion of the acid, so that the tea can prevent teeth decay. Actually, it is also because that the acacatechin can strongly refrain the Streptococus mutans.

预防龋齿：茶叶防龋作用，一般认为是茶中的氟，而使牙釉质对酸的侵蚀具抵抗力，但是儿茶素类能强烈抑制生龋菌也功不可没。

Today anticarious immunization becomes one of the focuses in caries preventative study.

免疫防龋是目前龋病预防研究的热点之一。

The author considered that anticarious ability of dental fluorosis may be related to the contents of microelements on the surface of enamel.

作者认为，氟斑牙的抗龋能力可能与釉质表面微量元素的含量有关。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。