Translation of toothbrushing in German

Study material is not easy to find. Unfortunately I have not received any such material yet. To give your students brochures and leaflets is in my opinion not the ideal. It cannot be compared with online studies.
We can communicate via Skype if it acceptable to you. It's easier. I can also write you via regular email and attach photos. My hobbies are hunting and mountain climbing. The later is pretty dangerous.
Thanks again for your letter. For now, the weather here is like it is in your country, ice cold. I will write you a letter in Spanish and in English. So you can compare the sentences.