The Ancient Greeks were the first to discover and use pliers to extract teeth. Just wondering how that first conversation went ...   "Hey Nick, let's see if this will work."  "Looks good to me Gus. GIve it a whirl!" Probably not.  

In Roman times, the ancient Gauls, as well as other people, used urine (which contained urea) as a mouth rinse in order to whiten their teeth. In fact, "urine therapy" -- strange as it may sound -- is still promoted in certain alternative medicine circles.  Various...

William F. Semple, a dentist from Mount Vernon, OH was issued the first patent in 1869 for chewing gum.