So basically I've had an abscessed molar with a fistula for a long time. 2 days ago, my cheek started swelling like crazy and I was put on antibiotics. I went to the dentist today and they told me that my tooth is trying to drain from both sides. They told me that before this most recent issue, my chance of a successful root canal was 90%, now it's 30-40%. I think they're worried about bone loss. I honestly regret not taking care of this sooner. I don't want an extraction and implant, but I'm leaning towards the root canal and crown for one last shot of possibly saving the tooth. I'm having this work done at a dental school. What would you recommend? Am I delusional in thinking that I can save it?