CPT® Code 21245

The procedure described by CPT® Code 21245 involves the reconstruction of the mandible or maxilla using a subperiosteal implant, specifically for partial reconstruction. This surgical intervention is indicated for patients who have lost teeth and require structural support for dental prosthetics. The process begins with the physician making an incision in the area of the jaw where teeth are absent, allowing for direct access to the underlying bone. The bone is then carefully exposed to the greatest extent possible to facilitate the insertion of a custom-made implant. This implant is typically crafted from metal and features posts that are essential for the fixation of dental devices. The procedure can be performed in one or two surgical sessions, depending on the technique used for creating the implant. In cases where the implant is made from molds taken during a previous visit, two sessions may be necessary. Alternatively, if CT scans of the jaw are utilized to design the implant, the entire procedure can often be completed in a single session. After the implant is placed, the surrounding tissue is meticulously arranged and sutured around the posts, ensuring that the metal plate is properly positioned against the bone. The fixation of the implant is achieved through the natural healing and scarring processes of the body. Finally, all incisions are closed to promote recovery. It is important to note that CPT® Code 21245 is specifically for partial reconstructions, while CPT® Code 21246 is designated for complete reconstructions.