Really clean teeth

Weekly I see men pee in public. Antiperspirant is not so popular here, and spitting on the train is no big deal. Dental hygiene, however, is very important. For my birthday I was given German toothpaste. The red tube is for mornings and the blue for evenings. They are apparently so potent that the tubes are sealed with solid plastic which must be cut through with a knife to open. Germany makes me smile, and now that smile looks even prettier than before :).