Teeth whitening is an elective procedure but can help in the way you see yourself and how others perceive you. It is natural for people to like white straight healthy-looking teeth because it is a sign of one’s vitality. There are a variety of reasons that your teeth may no longer be white. Some are within your control while others are not. Drinking a lot of wine or coffee can stain your teeth. Smoking will also discolor your smile. Other factors such as medication or childhood illnesses may have contributed to a change of tooth color.