Feeling loose teeth may be a normal physiological phenomenon, or it may be caused by periodontitis, acute apical periodontitis, root resorption, etc. According to the specific situation, we will choose temporary observation, periodontal treatment, root canal treatment, tooth extraction and other treatment measures. 1. Temporary observation: Normal teeth have a certain degree of physiological movement, if the tooth movement is within 1 millimeter, it is a normal phenomenon, no need for special treatment, maintain good oral hygiene can be. 2. Periodontal treatment: late periodontitis due to loss of attachment, alveolar bone resorption, etc. will lead to tooth loosening, the first choice of subgingival scraping and root planing, to remove plaque and calculus under the gums, so that the periodontium to form a new attachment; periodontal inflammation is relatively large, but also periodontal surgery can be chosen. 3. Root canal treatment: acute apical periodontitis caused by loose teeth, it is best to carry out root canal treatment on the tooth first, usually root canal treatment for about two weeks the tooth root tip inflammation will gradually disappear, loose teeth will gradually return to normal. 4. Tooth extraction: tooth root resorption leads to tooth loosening, in this case, it is best to extract the tooth, and then later for dental implant restoration or other denture repair. If you feel that your teeth are loose, go to the hospital in time for examination and treatment after clarifying the cause of the disease, so as not to delay the condition.