Implant designed to rest on the surface of bone, under the periosteum. It is customized, sometimes stabilized with screw(s).
- Complete subperiosteal implant: Used in the complete edentulous arch.
- Unilateral subperiosteal implant: Implant located on one side of the posterior mandible or maxilla.
- Circumferential subperiosteal implant: Implant that bypasses remaining teeth or implants.
This technique is not often used, largely discontinued.
Unilaterial, partial subperiosteal implant. Before insertion at a model, after insertion showing the post to receive a crown/bridge.
Complete subperiosteal implant. On a model, radiograph showing it in the maxilla, posts to receive bars to support a denture.