The pain when touching a movable tooth may be caused by severe periodontitis, acute periapical periodontitis, dental trauma, etc. Depending on the situation, you can choose periodontal treatment, root canal treatment or extraction and other treatment measures. 1. Severe periodontitis: For severe periodontitis that causes teeth to hurt when touched, firstly, periodontal treatment should be carried out on the teeth, and if the teeth have no value to be preserved, the teeth can be extracted. 2. Acute periapical inflammation: acute periapical inflammation leads to pain when touching the teeth, it is best to carry out root canal treatment on the teeth in a timely manner, until the inflammation disappears after the tooth movement, the symptoms of pain will disappear. 3. Dental trauma: tooth crown fracture or crown-root joint fracture caused by tooth activity a touch of pain, this case first shoot tooth apical film, if there is a retention value, the first root canal treatment of the tooth, and later stump crown repair; if the tooth does not have a retention value, timely extraction of the tooth. Tooth activity a touch of pain in a timely manner to the hospital, clear cause after active treatment, so as not to delay the condition.