According to Columbia University's College of Dental Medicine, between 9% and 15% of Americans avoid getting dental care because of anxiety and fear. That comes as no revelation to Rene Piedra, DMD (www.afraidofthedentist.net), whose dental practice in Coral Gables, Fla., welcomes patients who are reluctant to go to the dentist. "Every day, we see patients who have dental anxieties, fears, and phobias," says Dr. Piedra. "These fears can have a devastating effect, since delays in receiving...