Nigerian researchers have demonstrated that local chewing sticks performed better than fluoride-based and conventional toothpastes in preventing tooth decay.
They concluded: “The chewing sticks used in this study showed good antimicrobial activity against the isolates and could provide better care than fluoride toothpastes. The active compounds if isolated would be good caries-controlling components of herbal toothpastes.”
https://youtu.be/EoN2zbU4MRs