Several years ago I had a cavity drilled on a certain tooth, and the cavity was so deep that the dentist was worried that the tooth would just up and die one day. Well, I just got back from the dentist, and he said that the tooth finally died and now it's infected and I will need a root canal. The weird thing is, I'm not in pain. Usually when a tooth is infected like that one will be in extreme pain, but I'm not. I have dental insurance through Obamacare and my mom said she'll look for an endodontist within the plan network so the plan will pay for most of it.