Root canal or pull my tooth?

ok so i had a really bad cavity on my back molar. my dentist took out all of the inside of the tooth so it was like a shell kind of and then she filled it. but like a year later the back of the tooth broke off. and now my gum is infected. so my question is shoud i pull the tooth or get a root canal. and also i've never had a root canal so does it hurt or is most of the pain afterwards?

Root canal or pull my tooth?
It depends on what the dentist feels about what you should do. If you've lost that much tooth, there's not much hope for it, but if you get a root canal and get a good crown (providing the dentist thinks this is possible) over it, the tooth should last you several years if not decades more. If you get a root canal, it shouldn't hurt during the procedure providing you are nice and frozen. There can be some discomfort after, but it's not any worse than the pain of having the tooth taken out
Reply:i think u do need a root canal.
Reply:Its an entirely personal choice. I would just have it pulled and stop the whole problem. If its broken off anyway that may be your only choice.
Reply:You may end up with both, depending on how deep the infection got.