At 50 years old, the big teeth are movable which may be caused by caries, traumatic impact, abnormal occlusal relationship, periodontitis, etc. According to the different causes, you can choose root canal treatment, medication, adjusting the occlusion, scaling and other ways to deal with it. 1. Root canal treatment: caries is easy to cause damage to the apical area of the tooth and lead to inflammation of the tooth root, which makes the big teeth movable. In this case, it is necessary to remove the infected tooth nerve and carry out root canal treatment, and the loosening will be relieved after the inflammation is controlled. 2. Drugs: If the tooth is caused by inflammation in the apical region or acute periodontal inflammation, anti-inflammatory drugs such as cefuroxime tablets can be chosen under the guidance of the doctor. After the inflammation subsides, the tooth can return to a normal and stable state. When a tooth is severely loose or dislocated, then you should go to the hospital to tie the affected tooth to the neighboring tooth as much as possible. During this period, the tooth cannot be used to chew food. 3. Adjustment of bite: When eating on weekdays, if the bite force is too large or other bite relationship is abnormal, it may also lead to the loosening of the big teeth, and you need to adjust the bite under the guidance of the doctor. 4. Scaling: Periodontitis can also cause loose teeth, which is generally associated with long-term non-removal of food debris and calculus, which can easily destroy the resorption capacity of the alveolar bone, and this situation can be dealt with by scaling. If severe tooth loosening occurs, extraction may be necessary. It is recommended that after the loosening of large teeth, you should try to choose to eat soft and rotten food, avoid eating too hard food, so as not to aggravate the loosening of the situation. At the same time, it is necessary to go to the hospital in time to do the appropriate examination, and actively treat the symptoms.