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Distribution of Ca content in enamel and dentin in deciduous teeth was investigated.

釉质和牙本质中钙含量与病无非常明显的相关关系。

Methods Collected 25 extracted teeth with shallow dentin caries in 5 age groups, each group 5 teeth.

方法收集5组不同年龄组含有牙本质浅层的离体牙,每组各5颗牙齿。

Objective To observe efficacy of Gluma desensitizer for prevention of dental hypersensitiveness after deep caries filling.

目的 观察Gluma脱敏剂预防深充填后牙本质过敏症的疗效。

Methods Two hundred and thirty-six cases (n 354) of caries were randomly divided into three groups: group A was performed with routine filling , group B was performed with combination of Gluma desensitizer with routine filling and group C was treated with combination of acid etching agent, Gluma desensitizer and routine filling.

将236例354颗深患牙随机分为3组,A组采用常规充填,B组用Gluma脱敏剂+常规充填、C组用酸蚀处理剂+Gluma脱敏剂+常规充填。

Pretreatment of acid etching agent plus Gluma desensitizer for desensitization of cavity is better measure for prevention of dental hypersensitiveness after deep caries filling.

用酸蚀处理剂+Gluma脱敏剂预先对窝洞进行脱敏是预防深充填后牙本质过敏症的较好方法。

The microconsistency of enamel surface before and after treatment , after anti-caries test was measured by type MH-5 durometer.

采用MH-5型显微硬度计测量处理前、处理后及抗实验后牙釉质标本的显微硬度,观察牙釉质显微硬度的变化。

He proposed that the mutants might be used as an effector strain in the replacement therapy of dental caries.

并提出用这种菌株取代口腔内固有的变链,起到预防病的目的,即病的替代疗法。

In China, researches on drinking water fluoridation face big challenges. In 1960's, an experiment of tap water fluoridation was conducted in Guangzhou city but did not produce a reliable result due to the Culture Revolution.

饮用水中氟的浓度与病的关系、饮水适量加氟的社会效益与可能的危害问题已经在世界范围内进行了半个多世纪的研究。

The social and economic benefit of drinking water fluoridation has been widely accepted as a public sanitation measure in some western countries.

人体氟的过量摄入会导致氟斑牙和氟骨症,适量的摄入氟可避免人群病等口腔疾病的流行。

Fluorine is one of crucial chemical elements to human health and can be tested in almost every parts of a healthy human body. Overloading of fluorine may cause dental and/or skeletal fluorosis, while in fluorine deficiency areas, fluoride drinking water supply or other methods of fluoridation may greatly reduce the ratio of dental caries of local residents. Researches on relation between fluorine concentration in drinking water and the ratio of human dental caries as well as the evaluation on efficacy of drinking water fluoridation have been lasted for 6 decades.

中文题名中国部分城市和地区居民饮用水氟含量与口腔健康相关性研究副题名外文题名 A research on relation between fluorine concentration in drinking water and residents' dental health of some cities and areas in China 论文作者王滨滨导师郑宝山学科专业地球化学研究领域\研究方向学位级别博士学位授予单位中国科学院地球化学研究所学位授予日期2003 论文页码总数103页关键词饮用水口腔健康氟中毒病饮用水馆藏号BSLW /2003 /R123 /3 氟是人体必需的微量元素之一,正常人体各组织和器官都含有氟。

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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。

Ah may dee:You are chinese living in a democratic country.

你是居住在民主国家的中国人吧。