Teeth play a vital role in our everyday lives. They are individual units of our smile, and studies show that the smile is often the first thing people notice about others. What does your smile say about you? When you laugh, do you worry about what others will think of your teeth? Do you hide your smile because you are embarrassed about the appearance of your teeth? Do your teeth show how hard the years have been? The following are characteristics of an aging smile- if you have noticed any of the following things, then dentistry may be the key to your anti-aging plan.