Touyz L Z, Amsel R
Division of Periodontology, Faculty of Dentistry, McGill University, 740 Docteur Penfield Street, Room 417, Montreal, Quebec, Canada H3A 1A4.
Quintessence Int. 2001 Sep;32(8):647-50.
Black tea (Camellia sinensis) may have anticariogenic properties. The present study was designed to determine whether consumption of black tea influences cariogenesis in young, caries-prone rats.
Eighteen-day-old Sprague-Dawley rats (n = 24; eight per group) fed a cariogenic diet (MIT 200) were randomly assigned to three groups to receive deionized, distilled fluoride-free water, tea, or fluoridated water (25 ppm), ad libitum, for 14 days. In addition, an initial control group of rats was studied at 20 days of age. Teeth were stained with silver nitrate to detect caries and cut mesiodistally. First and second molars were assessed for caries.
The initial control group had negligible caries. Caries-prone rats consuming fluoride-free water had significantly more caries lesions (6.75) than did the tea (3.12) and the fluoridated water (0.85) groups.
Consumption of black tea for 2 weeks attenuated development and progression of caries in caries-prone young rats.
红茶（茶树）可能具有防龋特性。本研究旨在确定饮用红茶是否会影响易患龋齿的幼鼠的龋齿发生情况。
将18日龄的斯普拉格-道利大鼠（n = 24；每组8只）喂食致龋饮食（MIT 200），随机分为三组，分别随意饮用去离子蒸馏水、茶或含氟水（25 ppm），持续14天。此外，对一组20日龄的初始对照组大鼠进行了研究。用硝酸银对牙齿进行染色以检测龋齿，并沿近远中方向切割。评估第一和第二磨牙的龋齿情况。
初始对照组的龋齿情况可忽略不计。饮用无氟水的易患龋齿大鼠的龋损（6.75）明显多于饮用茶（3.12）和含氟水（0.85）的组。
连续2周饮用红茶可减轻易患龋齿的幼鼠龋齿的发展和进展。
