茶对菌斑和唾液中氟含量的作用  

Effect of tea on fluoride in plaque and saliva

作　　者：岳林[1,2] 高学军[1,2] 董艳梅[1,2] 毛秀萍 

机构地区：[1]北京医科大学口腔医学院 [2]英国联合利华牙科研究部

出　　处：《中华口腔医学杂志》1998年第6期355-357,共3页Chinese Journal of Stomatology

摘　　要：目的探讨茶源性氟对菌斑和唾液的影响。方法采用氟离子复合电极测定茶浸液中氟溶出量和饮茶者及非饮茶者菌斑和唾液中的氟浓度。结果档次低的茶叶氟含量高。菌斑氟含量：饮茶者高于不饮茶者；饮茶３周末时高于２周末时；饮高氟茶者显著高于饮低氟茶者（Ｐ＜０．０５）。唾液氟含量：不饮茶者较稳定；饮茶者略高于不饮茶者；饮高氟茶者略高于饮低氟茶者。饮茶者唾液氟２周末时升高，３周末时又下降。结论菌斑能够储留氟，唾液可能受外界氟的瞬时影响较大，无储留氟的能力。Objective To evaluate whether tea drinking in a Chinese way in the Chinese population would affect fluoride in plaque and saliva. Methods Two groups of students were involved. Group 1, 41 subjects, did not drink tea regularly. Group 2, 34 subjects, drank tea every day in a very regular way. During a study period of three weeks, Group 2 was requested to drink selected (known fluoride concentration) types of tea, and subdivided by the type of tea they drank into two subgroups, Groups 2a and 2b. Group 2a drank lower fluoride tea, while Group 2b drank higher fluoride tea. Plaque and saliva samples were collected at the 2nd and the 3rd end of week, respectively. Fluoride levels were determined with fluoride selective electrode. Results Both plaque and saliva fluoride were higher in the tea drinking group compared with non tea drinking group. Plaque fluoride in tea drinking group at the end of three week was significantly higher than the value of non tea drinking group ( t test, P =0.02). In tea drinking group, three week plaque fluoride was higher than two week plaque. Plaque fluoride level was also significantly corresponded to fluoride in tea. Drinking higher fluoride tea resulted in higher fluoride in plaque. But saliva fluoride was not shown the correlation with tea. Conclusion Tea is an important fluoride source. Plaque is a main resorvior of fluoride. Saliva has not the ability to store fluoride up. When considering tea as a fluoride source, the type of tea which may contain different concentration of fluoride should be borne in mind.

关 键 词：茶 牙菌斑 唾液 氟含量 龋齿 预防 

分 类 号：R780.1[医药卫生—口腔医学]