root canal failure signs

A successful root canal can save your natural tooth and stop pain caused by deep infection—but sometimes, things don’t go as planned. Whether due to hidden bacteria, complex tooth anatomy, or delayed healing, root canal failure can happen even years later. At Eastern Idaho Endodontics, we’ve helped many patients restore comfort and confidence through expert retreatment. Here’s how to recognize failed root canal symptoms before they get worse. What Is a Root Canal Failure? A root canal failure occurs when infection or inflammation returns inside or around the treated tooth. Even though the nerve and pulp were removed, bacteria can