Hi, I had a tooth filling done on one of my tooth (next to the wisdom tooth which was removed a year ago), unfortunately another decay developed after that but deeper, near the root of the tooth. Some dentists suggested that they don't deal with this kind of decays as they're very deep, the original dentist who did the tooth filling said that he can do it and another said that I need to have a root canal done first. I'm getting very confused because I'm getting different answers from everyone. I'd appreciate any other feedback that might help me which way to go about it