Whether loose teeth can be repaired or not depends on the cause and the degree of looseness of the teeth. If periodontitis causes mild to moderate looseness, it can be improved; if it is severe looseness, it cannot be repaired and can only be extracted. Periodontal disease is the most common cause of tooth loosening, because periodontal inflammation destroys the alveolar bone, which can cause resorption of the alveolar bone, the root of the tooth will slowly expose the bone outside, the root of the tooth in the bone becomes shorter, it can lead to mild loosening of the tooth, most of which can be repaired. However, when the teeth are suddenly hit by hard objects and the alveolar bone or jaw bone is fractured, different degrees of tooth loosening can occur, even leading to direct tooth loss. When a jaw bone tumor invades the alveolar bone, different degrees of loosening of teeth in the area can also occur, and most of them are irreparable. When loosening of teeth by trauma occurs, you should go to dentistry in time to take dental film to observe the root condition, and if the root is not fractured, then loose tooth fixation can be performed.