Whether or not to extract a rotted molar with only the root left depends on the severity of the decay and the individual’s condition, some are better to extract and some are not so good. If the decay is not serious and the root is healthy, it is usually better to extract it, and if no root canal treatment has been performed before, it is also better to extract it. If the decay is severe, there is recurrent inflammation around the root, or a root canal has been performed previously, it is relatively difficult to extract. If you want to remove the root, you need to actively seek medical treatment for dental examination to understand the specific condition of the tooth, and then to treat the symptoms, you can choose a professional doctor to remove the root, so as not to have an impact on the later life.