龋齿

Methods Culture the odontoblast of healthy and carious teeth, and determine the activities of MMP-2 and MMP-9 in culture supernatant by zymogram.

培养健康牙齿和龋齿成牙本质细胞，利用酶谱分析细胞培养上清中MMP-2和MMP-9的活性。

Combination of forced eruption and periodontal osteoplasty surgery could be used to save subgingival fracture teeth, and subgingival caries.

而强逼萌出术常合并齿槽骨整形手术，临床上常被应用及处理牙齿牙龈下断裂或牙龈下龋齿等。

Methods According to data from students' physical constitution survey in Anhui of the years of 1985, 1995, 2000 and 2005, the morbidity of student's common diseases was analyzed.

对1985，1995，2000，2005年4个不同时期安徽省学生体质健康调研资料7~22岁学生视力低下、龋齿、贫血等常见病的患病状况进行分析。

OBJECTIVE: To evaluate the physiochemical characteristics of resin restorative material and its clinical application in repairing dental caries.

目的：评价龋齿树脂修复充填材料的理化性能及其临床应用。

Glycitols is one type of functionality sweetener, the quantity of heat is low, and has somephysiological activity, can decrease decayed tooth, and have sorbefacient of calcium,proliferation of beneficial bacillus function, and so on.

糖醇热量低，具有某些生理活性，如减少龋齿，促进钙吸收和双歧杆菌增殖等，被称为功能性甜味剂。

ConclusionThe incidence of poor eyesight,physiology goiter struma ratio and decayed tooth was still higher and the emphasis of school health work should be put on prevention and control of them.

结论临朐县中小学生视力不良、生理性甲状腺肿大、龋齿患病率仍然较高，预防视力不良、生理性甲状腺肿大是当地学校卫生工作的重点。

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％。

Floss : This is essential to reduce tooth decay and gum disease.

用牙线清洁牙缝：这是一种必不可少的可以减少龋齿和牙床疾病的方式。

Tooth decay is common in the United States and around the world.

龋齿在美国以及全世界都很普遍。

The prevalence of poor eyesight was the highest in the three common diseases and followed by caries and trachoma.

三种常见病中，视力低下的患病率最高，其次是龋齿，沙眼患病率较低。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。