Learn what a cracked tooth root means, especially after a root canal, and discover the common causes, warning signs, diagnosis, and treatment options. This guide explains how root fractures can develop, what symptoms to watch for, when a tooth may be saved, and when extraction may be necessary. You’ll also learn how dentists diagnose hidden cracks and ways to reduce the risk of future fractures. If you notice pain or discomfort in a root-canaled tooth, early dental evaluation can help.