结石形成的

COX is affinity with damnification and inflammation of alimentary canal mucosa , also with occurring and developing of digestive cancer.

NSAIDs可以减少胆固醇结石的形成，但其在抑制COX一2的同时，也抑制了COX一1的活性，减少了COX一1诱导的PG合成，造成胃肠道的不良副反应。

So not only can the clearance food remnant, the tooth noodles germ spot and dental calculus filth, prevent°from the formation and deposition of tooth stone calculus, and can also rise to massage a gum, promote blood circulation, strengthen a tooth to organize for week of the function of anti-disease ability.

这样不仅可清除食物残渣、牙面菌斑、牙垢污物，防止牙结石的形成和沉积，而且还能起到按摩牙龈，促进血液循环，增强牙周组织的抗病能力的作用。

Many materials can inhibit the genesis of calcium oxalate calculus obviously in vivo or in vtro,such as fish oil,banana stem extract,corn silk extract,acid mucopolysaccharide substancesand so on.

鱼油、芭蕉芯提取液、玉米须提取液、酸性黏多糖类物质等在体外及动物试验中对草酸钙结石的形成有明显的抑制作用，作为新的防石药物很有前途。

In the treatment of impacted third molar, dental practioner and oral surgeon more often think about how to extract the third molar completely, but rarely consider to add some procedures such as distal wedge, alveoloplasty, guided tissue regeneration, and apically repositioned flap etc., to prevent 2nd molar from developing periodontitis. The latter procedures can reduce its accompanying deep pocket, to remove plaque and calculus on its diseased root surface.

在治疗阻生第三大臼齿，诊所执业医师和一般口腔外科医师较常会考虑怎样把阻生第三大臼齿完全拔除，但却较少考虑在拔除阻生第三大臼齿的同时做一些措施，像远心楔形手术，齿槽骨整形术，引导组织再生术和牙周办膜根向移动术等来预防第二大臼齿远心端形成牙周炎，或同时替第二大臼齿治疗深的牙周囊袋和去除其牙根表面的牙结石和牙菌斑。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。