7. Holy Basil

Holy Basil is one of the best natural remedies there is for discolored teeth, but that’s not all the dental benefits you can get from it. In fact, using holy basil can also help prevent serious periodontal issues like pyorrhea.
To use holy basil, you’ll need to let them dry in the sun for a few hours. Once they are dehydrated, grind them up into a powder and combine that with your toothpaste, which you will then need to use daily. Given its benefits, you don’t have to discontinue once your yellow teeth are gone either!