An alveolar membrane includes a connecting portion having a through hole for insertion of a dental implant, a covering portion with one end connected to the connecting portion and defined with a plurality of openings, and a positioning portion disposed at the other end of the covering portion and provided with at least one claw, the claw has a pointed end to be fixed in a bone tissue or between a bone tissue and a soft tissue, such that the bone graft can be fixed to a predetermined position stably.一種齒槽膜,包含:一連接部,其上設有一穿孔,供一人工牙根穿過;一覆蓋部,一端連接該連接部,且具有複數個開口;以及一固定部,設置於該覆蓋部的另端,具有至少一個爪,該爪具有一尖端,用以固定於骨組織或是骨組織與軟組織之間。藉由位於兩端的該連接部以及該固定部均為被固定的狀態,使骨移植物可穩固地固定於其預定位置。10連接部 11穿孔 20覆蓋部 30固定部 31爪 51人工牙根 52骨組織 53軟組織 54骨移植物
