HOSA Dental Terminology Practice

What is an overdenture?

1. A denture that rests on the gums

2. A complete denture for upper and lower arches

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

4. A removable partial denture

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

An overdenture is specifically designed to be secured onto implant posts or retained roots of remaining natural teeth. This type of denture provides additional stability and support compared to traditional dentures by utilizing the underlying structures, which can enhance the overall fit and function. The presence of implants or roots helps prevent the denture from slipping and can improve the patient’s ability to eat and speak comfortably. In contrast, the other options describe different types of dentures that do not utilize implants or roots for stability. While a denture that rests solely on the gums might lack the retention that an overdenture offers, a complete denture serves both the upper and lower arches but does not specifically involve implants. Similarly, a removable partial denture does not provide the same level of support and permanency as an overdenture since it is designed to replace only some missing teeth and still rely on adjacent teeth for retention. Therefore, the defining attributes of an overdenture distinctly set it apart as a more advanced and supportive prosthetic solution.