The described embodiments relate to a bone distraction plate device, which is surgically implanted, and a distraction tool for the purpose of growing new bone through the process of distraction. The device comprises a prosthesis housing a screw mechanism that attaches to a threaded post, which extends through tissue from an onlay plate and is surgically placed on the alveolar bone. The distraction tool is used to rotate the screw mechanism to create extension between the tissue and the onlay plate. After a brief, latent period, the screw mechanism is then activated daily using the distraction tool until the desired amount of new bone growth (height and width) is achieved.
