Find implant-retained Prosthesis in Tracy, CA. Restore your smile and confidence with a safe, natural-looking solution. Schedule a visit to Elite Dental. This is also known as an overdenture that rests on two or more platforms. It can be removed by a dentist and instead of using the vacuum to stay in place, it rests on clips that are in turn supported by the jaw bone. This is used in people who have all of their upper teeth missing and who also have sufficient jaw bone to hold the dental implants.