Translation of Zähneputzen

I have considered the option to bring my friends from other social networks and invite them to join here. They can develop better language skills here. I'd love to pursue that goal, but I want to write in English.
Take your time to answer me, do the vocabulary exercises and measure your progress! Your answers will be kept in the system itself. After that you can look at the statistics. That's pretty cool here.
I will be doing my second year of studies abroad, probably in Panama. For that I will really want to learn Spanish. I know little about the Spanish language, but I will learn. I can help you with German.