A retained root may remain after a tooth breaks down or following an earlier extraction. Some fragments cause pain, infection, or interference with a planned denture or implant; others are discovered incidentally. In selected circumstances, leaving a root in place can be an intentional decision when removal would carry a greater risk to nearby structures.
The assessment considers the root’s position, its condition, the surrounding bone and tissues, and your symptoms. Earlier treatment records can help explain why it was retained and whether its position has changed. The goal is to compare removal with observation using the facts of your case. A visible or suspected fragment should not be pulled, pushed, or tested at home, because what appears to be a small piece can have a more complex relationship with the tissues beneath it.