There are many different causes of toothache, and whether or not a tooth can be extracted in the case of toothache should be analyzed on a case-by-case basis. If the unreserved tooth is painful due to pulpitis, the tooth can be extracted to relieve the pain, and if it can be retained, root canal treatment is required. 1. Toothache caused by acute attack of chronic pulpitis, acute pulpitis or retrograde pulpitis needs to be judged according to X-ray and clinical examination; if the toothache is due to pulpitis in a tooth that cannot be retained, the tooth can be extracted to relieve the pain; if the tooth can be retained, the tooth needs to be retained after root canal treatment and crown restoration. 2. Toothache caused by wisdom tooth pericoronitis or acute periodontal abscess, it is not recommended to extract the toothache; at this time, it is necessary to incise and drain the tooth first, with the aid of antibiotic treatment, and when the swelling and pain are relieved, to further determine the prognosis of the tooth, and then extract the tooth if it cannot be retained. Acute inflammation period extraction will cause inflammation spread, cause other complications, for the physical condition is not good, poor resistance even lead to the spread of inflammation, and even life-threatening. Toothache should go to a regular hospital as soon as possible, find a professional doctor to check and evaluate, to avoid delaying the condition.