The American Dental Association considers two types of implants to be safe. They are:
- Endosteal implants – these are surgically implanted directly into the jawbone. Once the surrounding gum tissue has healed, a second sitting is needed to connect a post to the original implant. Finally, an artificial tooth (or teeth) is attached to the post-individually, or grouped on a bridge or denture.
- Subperiosteal implants – these consist of a metal frame that is fitted onto the jawbone just below the gum tissue. As the gums heal, the frame becomes fixed to the jawbone. Posts, which are attached to the frame, protrude through the gums. As with endosteal implants, artificial teeth are then mounted to the posts.