Many people don’t realize that there are various health reasons why someone might feel uncomfortable showing their teeth when ...

However, only one of these is a “genuine” or Duchenne smile. Discovered by French anatomist Duchenne de Boulogne in 1862, the key difference between this “real” happy smile and a “fake ...

Continue reading Straight Teeth, Happy Smile: 10 Best Orthodontists in Grand Rapids at grkids.com.