1 / 5 Baking soda has natural whitening properties and thus it is an important ingredient used in toothpaste. It is a mild abrasive that can remove stains on teeth. 2 / 5Hydrogen peroxide is a natural bleaching agent that also kills bacteria in your mouth. Hydrogen peroxide has been used to clean wounds due to its ability to kill bacteria.3 / 5Oil pooling is a traditional remedy that improves oral hygiene and removes toxins from the body. This practice removes bacteria from the mouth. The most commonly used oils for this include sunflower and sesame oil.4 / 5Grind a few pieces of strawberry and apply this paste on the teeth and massage. By doing this twice a day, yellow teeth start turning white in a few days. Mixing baking soda and strawberry pulp and rubbing it on the teeth also eliminates yellowing of teeth.5 / 5Daily brushing of teeth with orange peel will make yellow teeth shine in a few days or rub orange peel on teeth every night while sleeping. Orange peel contains Vitamin C and Calcium which maintains the strength and shine of teeth.