count. According to Query 39 Health Network, dental implant is a common restoration method. When planting teeth, the doctor will make a small incision on the patient's gum and implant the implant into the alveolar bone. Bone grinding operation will lead to loosening and falling off of patients' teeth, and may also affect chewing function in severe cases. Therefore, after half of the teeth are planted, the dental hospital says that the teeth are not suitable and have to be ground, which is a medical accident.