There are many causes of loose teeth, and early consultation should be made to take different treatments according to different etiologies, including the following: 1, periapical inflammation: take root canal treatment to relieve loose teeth; 2, periodontitis: remove the patient’s own irritation factors to slow down the loosening; 3, local tumor: surgical treatment; 4, do not take drugs or mouthwash treatment by yourself to avoid covering up the surface symptoms and delaying the treatment. Loosening of teeth caused by periodontitis is irreversible, and after the resorption of the alveolar bone around the teeth, the loosening of teeth becomes more and more serious, and even cannot be retained, so it is recommended to seek early medical treatment.