Dental implants for fixed and removable prosthetic devices, and for other devices such as orthodontic devices, which have application to single tooth replacement, e.g., caps and crowns, and multiple tooth replacement using one or more implants, e.g., bridges, and multiple implants for full and partial prosthetic devices. The dental implants include a post or posts inserted into the jawbone and a base that is loaded, in the general area of the gum line, against the jawbone using the post or posts. The base may be loaded against the jawbone by a fastener system.