On this edition of Conversations, I talk with Mary Otto about Teeth: The Story of Beauty, Inequality, and the Struggle for Oral Health in America. From the invention of the Hollywood Smile to the the racial divide in dental care, the book exposes the extent and meaning of our oral health crisis. Mary Otto is the oral health topic leader for the Association of Health Care Journalists. For eight years, she covered social issues, including health care and poverty for the Washington Post.