Plus, the history behind the tradition. A big milestone in any child's life is when they lose that first tooth. When that permanent larger tooth pushes out the baby tooth, it's like a rite of passage ...

For 20 years, Dr. Purva Merchant has been answering letters from gaptoothed children and their parents — roughly 6,000 in all. “Happy growing up,” she typically replies. Credit...Su Yun Song Supported ...

Is the tooth fairy real? One mom found a smart way to answer the timeless question — on the spot. “I am really open with my kids about ‘real’ versus ‘pretend,’” KC Davis, a licensed professional ...