A Chinese green tea polyphenol extract has evident anti-plaque effect. - GreenMedInfo Summary
[Experimental study on polyphenol anti-plaque effect in human].
Zhonghua Kou Qiang Yi Xue Za Zhi. 2000 Sep;35(5):383-4. PMID: 11780252
Department of Stomatology, Affiliated Hospital of Shandong Traditional Chinese Medical University, Jinan 250011, China.
OBJECTIVE: To evaluate anti-caries effect of Chinese green tea's polyphenol. METHODS: 150 volunteers are randomly divided into 3 groups: A, B test group and contrast group, 50 persons in each. People in test groups were given polyphenol's tablet, placebo was given in contrast group, a tablet three times a day. After 3 weeks, group A was given placebo and group B continued polyphenol for 6 weeks. RESULTS: After using polyphenol's tablet for 2 weeks, the plaque index of test groups were evidently lower than the contrast group (P<0.01). After stopping use of polyphenol tablet, the effect was still kept for 3 weeks. CONCLUSION: It can be concluded that polyphenol tablet from Chinese green tea has evident anti-plaque effect.