I’m an old guy.  I love my Medicare.  But for my oral health, I’m on my own.  Why is that? and how does it explain the inequality of America’s dental care?  Mary Otto, the author of an excellent new book called Teeth, knows the answers and the history behind them.  The economics of taking care of what’s in your mouth…the differences between medical care and dental care in America…they may not put a smile on your face.