There are many people that do not like the way their teeth look. A lot of times, people have yellow or stained teeth and this can be very unattractive. When this happens they may look for a Cosmetic Dentist in Springfield. Having your teeth whitened can have results that last up to two or three years. This will depend on each person and the lifestyle they lead. Studies have shown that whitening your teeth is not harmful. Sometimes people have sensitivity to the products used in teeth whitening, but this also depends on each individual. You can ask your cosmetic dentist any questions about the procedure.