Nutrition is the key. Teeth are so important for survival, I cannot believe we survived so far with such flawed "design" of the mouth. Indigenous people have pretty healthy teeth - they might get physically damaged, they may not always be like those on the toothpaste ads, but I think we're doing everything wrong about them. When it comes to bacteria, it's always about the balance between good and bad bacteria. We don't have a solid research on mouth probiotics and prebiotics and most toothpaste destroys all bacteria and as we know, bad bacteria is more than good in the environment, so, it needs to recultivate our mouths and keep the good strains in there.
By the way, such toothpastes and gels have existed for years. Here are few brands my family has been using:
- https://www.apacare.com/en/
- http://www.biorepair.it/en