Loose teeth are characterized by extensive destruction of periodontal supporting tissues, which severely affects chewing function. Together with symptoms such as overflowing pus, bleeding, and bad breath, it has an extremely detrimental effect on the physical and mental health of patients. Although most of the causes of tooth movement are complex and used to be considered difficult to treat, in recent years, with the development of medical technology, the treatment effect has been improving, and many patients have not only retained the affected teeth but also maintained their chewing function after active treatment. Therefore, it is extremely necessary for patients to go to the hospital as soon as possible to get timely treatment, otherwise there is a high risk of premature loss of the affected teeth or even the loss of the entire mouth. Tooth loosening is a chronic disease with a long course of treatment, and because of the complex etiology, the methods of treatment are also multifaceted. In the treatment of the whole body, attention should be paid to improving the resistance of the body, increasing nutrition and enhancing physical fitness. In the local treatment, the main focus is to control the inflammatory infection, learn the correct way to brush teeth and maintain oral hygiene. Patients with tartar should go to the hospital regularly for treatment to remove tartar and so on, suffering from periodontal pockets, periodontal often swollen, overflowing pus must be surgically treated to remove the granulation tissue and subgingival calculus in periodontal pockets, so that periodontal support tissue regeneration, recovery, loose teeth can be used wire ligation or splint fixed, so that loose teeth support each other, rely on, to achieve relative stability, can withstand a certain force effect. Loose teeth can only occur in a pathological state, not only in the elderly, but also in people of other ages. First of all, it should be understood that in the normal physiological state, teeth also have a certain level of movement, not more than 0.02mm, and the axial movement is extremely small. The physiological tooth movement is usually not easily detectable. Only in cases of inflammation, trauma, or destruction of periodontal supporting tissue structures, does tooth movement exceed the physiological range and clinical tooth loosening occurs. Resorption of the alveolar ridge reduces the periodontal support tissue, which is the main cause of tooth loosening. When the alveolar bone is resorbed to more than 1/2 of the root length, the crown-root ratio is out of balance and the tooth loosens. When there is dental trauma, such as night grinding, tight clenching, early contact, cusp interference, too high restorations, orthodontic overstrength, acute trauma, etc., the alveolar bone can be vertically resorbed, the periodontal ligament gap is wedge-shaped widening, and the tooth is loose; when the excessive dental force is eliminated, the alveolar bone can repair itself, and the tooth looseness returns to normal; in the case of acute periapical inflammation or periodontal abscess, etc., the tooth can be loosened. When the inflammation subsides the tooth looseness can be restored. After periodontal flap surgery, there is a temporary loosening of the tooth, which usually recovers in a few weeks after surgery. Loosening of teeth can occur during pregnancy, menstruation, and in women who have been taking oral contraceptives for a long time due to changes in estrogen levels. In addition, tooth loosening may also occur during physiological or pathological root resorption, such as milk tooth replacement, cyst or tumor compression. Tooth looseness is measured by holding or clamping the tooth with the handle of a dental instrument and doing a buccal (labial) and lingual (palatal) surface, near and far, pushing or rocking up and down in both directions.