Periodontal surgery is an effective method to treat alveolar bone deformation caused by periodontitis. Osteoplasty is an operation to deal with alveolar bone deformity and affect the physiological appearance of gingiva, without reducing the height of bone after operation. It is suitable for intermittent and irregular bone edge lines, and the bone edge protrudes to form a wall frame; Or the cheekbone plate forms a rock-like bony process. Osteotomy is to carefully sacrifice some bones, reduce the height of alveolar bone, and make alveolar bone form a nearly normal anatomical shape, which is beneficial to the attachment of gingival flap and tissue regeneration. Suitable for shallow single-wall bone bags and shallow double-wall bone bags. Bone regeneration is an operation to promote bone tissue regeneration. Suitable for three-wall bone bags and double-wall bone bags. However, the four-walled bone bag with roots in the center has no conditions for regeneration and is not an indication. Pedicled bone transfer is a method to transfer pedicled bone to bone defect area by using edentulous area far from bone bag. Bone transplantation and bioceramic implantation are used to guide or induce bone regeneration and repair bone defects. At present, bone graft materials include autologous bone tissue, allogenic bone tissue and bioceramics. Suitable for double-wall and triple-wall bone bags.