What is an overdenture?

• A. A fixed prosthesis on natural teeth
• B. A removable denture supported by implants
• C. A partial denture that attaches to adjacent teeth
• D. A denture that requires no supporting structures

Answer: (B)

An overdenture is a type of removable dental prosthesis that is specifically designed to be supported by dental implants. The primary characteristic of an overdenture is that it sits over the remaining natural teeth or, more commonly, the implants, which provide stability and retention. This design helps enhance the function and aesthetics of the denture, allowing for better chewing efficiency and comfort for the patient.

When utilizing implants as support, overdentures can offer a more secure fit compared to traditional dentures that rely only on the gums for support. This can also significantly improve the patient's quality of life, as it minimizes movement during use and often enhances the overall experience of wearing a denture. Additionally, the use of implants for support can help preserve the bone structure in the jaw, which is important for maintaining facial aesthetics and dental health.

Understanding that an overdenture is specifically supported by implants differentiates it from other types of dentures, such as fixed prostheses or partial dentures, which do not utilize implants in their design.