Tooth sensitivity can be caused by many different things, but as we age, the most common cause is exposed tooth roots. As we age, our gums tend to recede, or pull away from, the tooth. The gums protect our teeth, so when they pull away, it leaves our teeth unprotected from the elements.
What is a “gummy smile?” If you look in the mirror and think that you show too much gums when you smile, then you have what periodontists call a “gummy smile.” If you have a “gummy smile” then there’s good news, and then there’s better news. The good news is that there is absolutely nothing..