If you are serious about whitening your teeth, consult your dentist about other options for tooth whitening. They cannot get to the root-cause of the problem. Ayurvedic medicated toothpastes are available and some people are very happy with the results. We are not qualified to judge the efficacy of the constituents. The only thing against them is their gritty consistency, which can cause severe abrasion of the enamel.
Some pastes contain clove oil, which has no proven value when used in the form of a toothpaste.
In addition, the pungent taste can be quite strong. Some people like to use a toothpowder instead of a paste, believeing them to be better at cleaning teeth. Their abrasiveness is their negative characteristic. There is no actual advantage to using a powder over a paste. In Conclusion Brush your teeth twice a day with a fluoride-containing paste.