Researchers at Harvard University have discovered a new, highly corrosive bacteria hiding on the tongues of people with chronic oral health problems.

The bacteria acts like an acid: it destroys tooth enamel from the inside and silently eats away at gums. And the worst part? It can’t be eliminated by toothpaste, mouthwash or floss. This explains why, even with good hygiene, symptoms continue to worsen.

But there is good news: A natural, discreet, homemade method has helped more than 74,000 people restore teeth and gums without the need for a dentist, pain or high costs. A free presentation reveals the discovery. Click below to watch it while it’s still live; it may be removed at any time.