The loosening of other teeth after tooth extraction may be due to the following two reasons: First, the inflammation of the affected tooth is more serious, resulting in a large amount of resorption of the alveolar bone of the neighboring teeth. After the extraction of the affected tooth, the adjacent tooth has less support, so the loosening of the tooth occurs. Secondly, the loosening of other teeth is likely to be caused by injury to the neighboring teeth during the operation, but this situation is relatively rare. If the loosening is not obvious, the tooth will be gradually stabilized through a period of recovery, which takes about 3 months. After tooth extraction, patients must pay attention to the protection of other teeth and avoid eating too hard food, especially when the extraction socket has not completely grown flat, because the corresponding teeth in front and the affected teeth behind share the same side of the alveolar bone area, the root of the front teeth is more fragile, if the alveolar bone is not completely repaired at this time, consume too hard food, it will easily lead to the loosening of teeth.