CPT® Code 21246

The procedure described by CPT® Code 21246 involves the reconstruction of the mandible or maxilla using a subperiosteal implant, which is a type of dental implant placed beneath the periosteum, the layer of connective tissue that covers the bone. This surgical intervention is typically performed in patients who have lost teeth and require a stable foundation for dental prosthetics. The process begins with the physician making an incision in the area of the jaw where teeth are absent, allowing access to the underlying bone. The bone is then carefully exposed to facilitate the insertion of a custom-made metal implant. This implant is designed to fit the unique contours of the patient's jaw and may be created using molds taken during a previous appointment or through advanced imaging techniques such as CT scans. Depending on the method used for implant creation, the procedure may be completed in a single surgical session or may require two separate sessions. Once the implant is positioned, it features posts that will later be used for securing dental fixtures. The surrounding tissue is meticulously arranged and sutured around these posts, ensuring proper healing and integration of the implant with the bone. The entire procedure is aimed at restoring functionality and aesthetics to the patient's oral cavity, with the final goal of supporting dental prosthetics effectively.