HOSA Dental Terminology Practice

What defines an overdenture?

1. A denture that is removable and requires no implants.

2. A prosthetic denture secured upon implant posts or retained roots.

3. A type of full denture used in aesthetic and functional situations.

4. A denture that covers only the gums.

The correct answer is: A prosthetic denture secured upon implant posts or retained roots.

An overdenture is specifically defined as a type of prosthetic denture that is supported or retained by dental implants or the roots of remaining natural teeth. This design allows the overdenture to provide better stability and retention compared to conventional dentures, which can often shift during eating or speaking due to lack of support. By utilizing the existing roots or implant posts, an overdenture offers enhanced comfort and function while preserving more bone structure in the jaw, as it promotes better distribution of forces during chewing. This makes it a favorable option for many patients who have experienced tooth loss but still possess some healthy tooth structures or who have received implants for support.