You should be brushing your teeth two times a day, for 2 minutes each time. This sounds easy--and it is, once you get the habit down--but it can be difficult for some people to develop the diligence to do it in the first place. Many people brush their teeth but... Read more » Teeth are one of the most enduring, toughest parts of the human body, and their evolution is truly incredible. Humans go through two sets of teeth in their lives, baby chompers and adult pearly whites. (And three sets if you count dentures!) Here are a few interesting tidbits we’ve put... Read more » 
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