Bone grafting is possible for teeth with severe alveolar bone resorption. 1. If the patient has been missing teeth for a long time and there is a certain degree of alveolar bone atrophy, which is manifested by the collapse of the alveolar ridge contour and exposure of the tooth root, bone grafting is required to implant artificial bone powder or autogenous bone in order to increase the amount of bone around the teeth. Artificial bone powder requires more than six months of healing time. 2. Bone grafting is a common method to make up for the lack of bone around the teeth by implanting artificial bone powder. The advantage of artificial bone powder is that there is little local damage, taking large particles of bone powder for bone grafting to increase the scaffolding support of the bone, and the rate of bone resorption is very slow. 3. Before bone grafting, it is necessary to go through a detailed auxiliary examination and take pictures to check the height, width and thickness of the alveolar bone for pre-surgical preparation. 4. Bone grafting surgery is a complicated procedure with certain risks, so it is recommended to go to a professional dental clinic and find an experienced surgeon to perform the procedure.