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ESL / EFL Lesson Activity- Tooth Decay

Scientists in Chile have made a new chemical makes teeth 'cavity proof'. It could be in within eighteen months. It could also visits to the dentist become a thing of the past. The scientists are the chemical ‘Keep 32’ – the number of teeth we have in our mouth. In laboratory over seven years, ‘Keep 32’ wiped all the bacteria that cavities in just 60 seconds. It also keeps working to fight the bacteria for hours. In addition, it could also help fight disease.

The team of scientists has started trying to interest big American companies into ‘Keep 32’. “We are currently talks with five [companies] interested in investing in our or buy our patent,” the researchers said. They say their product can be to toothpaste, mouthwash or chewing gum and other care products, which become ‘bacteria busters’. The research team says ‘Keep 32’ could be to food. It might be possible to eat candy that does not cause tooth .