For starters, teeth whitening is a procedure that helps lighten teeth and remove any discoloration. Having a bright set of teeth can make a difference in your teeth and your overall look as well. For best results, teeth whitening requires several sessions to achieve and maintain that bright smile. Teeth yellowing is a normal part of life. As we age, our hair turns gray, our skin gets wrinkled, and our teeth turn yellow. Contrary to popular belief, it is the dentin, the inner part of the tooth, that turns yellow and not the enamel. Dentin is like a prism, which reflects light through the enamel. As a result, teeth often show up as yellowish. On the other hand, the enamel can also get stained, especially if you are fond of drinking colored drinks such as tea, wine, or coffee, or smoke often. Other dental issues such as fluorosis, Amelogenesis Imperfecta (AI), and genetics can also contribute to the yellowing of the teeth. It is important to know that teeth whitening is not damaging to the teeth, aggressive brushing and other improper oral care routines are. Moreover, not everyone can have perfectly white teeth due to the natural color of the teeth of a person, depending on their genetics.