Baking Powder
One of the best-working natural remedies for yellow teeth is baking soda. Use baking soda combined with white vinegar or lemon juice to gently brush your teeth.
Orange Peels
Orange peel can be used to help whiten the teeth. By rubbing an orange peel on your teeth every night before bed you can whiten your teeth.
Salt
Salt, used since the Middle Ages, effectively restores teeth mineral content by gently brushing them with toothpaste and salt, using it as a mouthwash, and rinsing.
Strawberries
They are an excellent teeth whitening agent, high in vitamin C, and can be used to remove yellow deposits from the skin.
Lemon juice
Citric acid is found in lemons which helps to remove dental stains. Teeth whitening can be helped and discoloration can be gently removed by applying a solution of baking soda and lemon juice.
Restrict sugar-based products
Sugar-based foods and drinks should be consumed in moderation as they can discolor teeth. Wines, sodas, and soft drinks ought to be shunned. Don’t drink too much of the packaged drinks because they usually contain added sugar.
By Indian.com