龋

Streptococcus mutans, which is the predominant pathogen of caries, can close adhere to the surface of teeth , continue producing organic acid and resist to lower pH.

龋病的发生与变形链球菌的存在有密切关系。

Methods: 168 primary molars were collected and randomly divided into two groups. ART manual tools was used in the experimental group and burs was used in the control group.

收集临床初诊乳磨牙龋病例168例，按随机化原则分成两组，分别用牙钻和ART手用器械备洞充填治疗并对其疗效进行对比分析。

Results IPS Empress2 was same as IPS Empress1 in color and shape of prostheses,margin sealing and second caries of a butments,IPS Empress2 was better than IPS Empress1 in fracture of prostheses sig nificantly (P＜0.05),IPS Empress2 all-ceramic bridges was better than po rcelain bridges with gold alloy in color of prostheses (P＜0.05),it was same as porcelain bridges with gold alloy in fracture of prostheses and shape of prostheses,margin sealing second caries of abutments.

结果 IPS E mpress2全瓷冠的颜色、形态、基牙龋患率、修复体的边缘密合度、边缘着色与IPS Empress 1无统计学差异，在修复体折断率方面IPS Empress2低于IPS Empress1(P＜0.05)， IP S Empress2全瓷桥在颜色方面好于金合金基底烤瓷桥(P＜0.05)，其他方面无统计学差异。

Dental plaque, in which streptococcus mutans could grow and cause dental caries, is a cariogenic environment.

以往有关研究认为：龋病的发生发展是电化学腐蚀过程，与菌斑氧化还原电位的变化有关。

Fluoride can inhibit the cariogenic bacteria and propagation; thereby reducing the opportunity for dental caries.

氟化物能抑制和致龋菌繁殖，从而减少龋齿的机会。

Specific protein bands were observed in cellular and extracellular protein electrophoresis for both strains 593 and 18.There were also different protein expression in certain protein bands.It is indicated that a significant difference existed between the proteome of strains 593 and 18.This difference may contribute to the different cariogenic potential of these two strains.

两菌株的菌体和菌外可溶性蛋白电泳图谱中均可见各自特异表达的蛋白条带，且部分相同位置的蛋白条带在蛋白表达量上也存在差异，表明两菌株的蛋白组存在明显差异，该差异可能是导致其致龋力差异的原因之一。

Chewing can stimulate saliva secretion, combined with the gum in the teeth of the friction effect can enhance the role of dental cleaning to reduce the cariogenic factor, contribute to dental caries.

咀嚼可以刺激唾液分泌，再结合口香糖在牙齿上的摩擦作用，可以增强牙齿的清洁作用，减少致龋因子，有助于防龋。

Some people think that the role of chewing gum have dental caries, it was stated that there Cariogenic role of chewing gum, then chewing gum on oral health in the end be beneficial or harmful?

有人认为口香糖有防龋作用，也有人认为口香糖有致龋作用，那么口香糖对口腔健康到底是有益还是有害？

Methods To analyse and compare the cariogenic bacteria plaque getting from the buccal cervical third of casting and wrought wire clasp teeth before and one week after wearing removable partial dentures.

对铸造、冷弯卡环可摘局部义齿初戴一周前后，基牙菌斑中的主要致龋菌进行分析比较。

In this case report is described the nursing experience caring for a patient with facial and neck cellulites caused by a decayed tooth after it was excised and drained.

本篇个案报告主要描述照护因牙齿龋蛀造成颜面部及颈部蜂窝组织炎，行肿块切除及脓疡引流术之照护经验。

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。