Miswak chewing sticks are a traditional teeth cleaning aid used predominantly by people living in African, Asian, Arabian, and Middle Eastern countries. A
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Janet Moradian-Oldak, a professor at the Herman Ostrow School of Dentistry of USC, has been studying how to coax tooth enamel to regenerate on its own for decades.
There’s a tooth rebuilding toothpastes that is sold on Amazon!
These chew sticks are popularly used for oral health in several African countries.
https://www.todaysrdh.com/international-study-displays-efficacy-of-miswak-chewing-sticks/
There is one for babies!
The idea was on Dragons’ Den Canada!
It’s been done!
Philips has a sonic water flosser.
There’s also this!
These already exist.
Researchers have already developed a synthetic enamel using nanotechnology.
https://www.google.com/amp/s/phys.org/news/2022-02-strong-synthetic-enamel-similar-natural.amp
Nanotechnology can also help with enamel repair and regeneratuon.
It looks like Chinese scientists have already developed this.
There’s a researcher who has been working on a gel that can naturally regenerate a tooth’s enamel.
https://today.usc.edu/tooth-enamel-regrow-research-gel/