TY  - JOUR
AU  - LI, Yuanhong
AU  - FANG, Xinyi
AU  - QIU, Yu
AU  - CHENG, Lei
PY  - 2017
TI  - Experimental study on the effects of green tea on salivary flow rate and pH value
JO  - Journal of Prevention and Treatment for Stomatological Diseases
SN  - 2096-1456
SP  - 560
EP  - 564
VL  - 25
IS  - 9
AB  - ObjectiveThe purpose of this study was to compare the effects of different concentrations of green tea on salivary flow rate and pH value.Methods20 healthy college students aged from 18 to 25 were included in this study, at State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University. Salivary flow rate and pH value were measured between 21: 00 and 22: 00 after drinking water, low, medium, and high concentration of green tea.ResultsFemale salivary flow rates in low and medium concentration group were significant higher than that in high concentration group and water group (F = 5.20, P＜0.01). There was no significant difference in male salivary flow rates among 4 groups (F = 1.810, P = 0.143). Salivary pH value in 3 green tea groups were lower than that in water group (F = 3.50, P = 0.02), with no significant difference among them.ConclusionLow and medium concentration green tea prevent decrease of salivary flow rate in healthy women but not in males. Salivary pH lowers after drinking different concentrations of green tea.
UR  - https://doi.org/10.12016/j.issn.2096-1456.2017.09.003
DO  - 10.12016/j.issn.2096-1456.2017.09.003