A toothbrush that grows in the ground
In Lebanon, as in many Middle Eastern and Asian countries, some people use siwak: a small stick that replaces plastic toothbrushes and toothpaste tubes. Siwak is more effective than a conventional toothbrush, thanks to the many substances it contains: alkaloids (antimicrobial and antibacterial), silica (anti-tartar and whitening), fluoride (prevents cavities) and vitamin C (healing).