title: Osseous grafts in periodontal therapy.
mesh_terms: D001861:Bone Regeneration; D016025:Bone Transplantation; D003094:Collagen; D006801:Humans; D010510:Periodontal Diseases / Q000601:surgery*; D012590:Sclera / Q000637:transplantation; D014182:Transplantation, Autologous; D014184:Transplantation, Homologous
chemical_list: D003094:Collagen