Dental professional holds an X-ray of tooth roots beside a dental microscope, with a teal card reading "Root Canal Success" in the foreground.

Root Canal Success Rate: What Patients Should Know

Modern root canal treatment succeeds roughly 9 times out of 10 under widely used criteria, and the treated tooth itself often stays in place even more reliably. Those numbers sound reassuring, but they only make sense once you know what researchers mean by success, because that word can mean anything from “no pain and working…