The SPSS Windows and Files. SPSS Statistics has three main windows, plus a menu bar at the top. These allow you to (1) see your data, (2) see your statistical output, and (3) see any programming commands you have written. Each window corresponds to a separate type of SPSS file.
He found green tea to be the most potent antioxidant, followed by oolong tea, then black tea. Green tea blocked oxidation by almost 100% over 40 days. Oolong tea blocked oxidation by 50% over 15 days. Black tea showed only slight antioxidant activities.
A study from 1998 concludes that green tea extracts strongly inhibited different kinds of bacteria. An earlier study showed that green tea extract increased the acid resistance of tooth enamel; the same effect was noticed even when fluoride was removed from the extract. This study from 2006 studied the effects of epigallocatechin gallate (or EGCg), one of the catechins in green tea. The results suggest that EGCg is effective in reducing bacteria and acid production in dental plaque. Another study concludes that the catechins in green tea may reduce periodontal breakdown associated with periodontal disease. Black tea is not without its oral benefits either.