Question

You have read about the neem tree,how its different parts are used ​

Answer 1

here is your answer

Dental plaque. Early research suggests that -

1. neem leaf extract gel to the teeth and gums twice daily for 6 weeks might reduce plaque formation.
2. It also might reduce the number of bacteria in the mouth that can cause plaque. However, using a mouth rinse containing neem extract for 2 weeks does not appear to reduce plaque or gingivitis.