Question: Dear Dr. Crapo: Six months ago I celebrated my fiftieth birthday. The next day I broke one of my five remaining lower teeth. In the past several months, I’ve been shopping for dentures or dentures with implants and I’m more confused than ever – the price range is staggering. I know I’ve got to do something because I’ve only got my four lower front teeth. When I bite, I only hit on those four teeth and they make my upper denture tip out of my mouth, so I’m not chewin