3. Epsom salt
What you need: Epsom salt, water
How to use: Mix salt and water in equal parts. Stir until the salt is completely dissolved. Apply the mixture to your teeth with a toothbrush. You can also gargle with it and then rinse your mouth with clean water.
4. Neem leaves
What you need: neem leaves, water
How to use: Bring the neem leaves in a pot of water to boil. Strain it so that the liquid is clean. Let it cool and gargle with the resulting solution.