HOSA Dental Terminology Practice

Which part of a removable prosthesis is known to straddle the gingival crest?

1. The framework.

2. The saddle.

3. The retainer.

4. The clasp.

The correct answer is: The saddle.

The saddle is the component of a removable prosthesis that is designed to straddle the gingival crest. This part serves as the base that supports the artificial teeth and is intended to fit over the residual alveolar ridge and any remaining gingival tissue. By resting on the gingival crest, the saddle plays a crucial role in distributing occlusal forces evenly and maintaining the stability and retention of the prosthesis during function. The framework, while important for the overall structure of the prosthesis, does not directly straddle the gingival crest. Instead, it acts as a supporting base that holds all the components of the prosthesis together. The retainer is another important part of the prosthesis, as it helps to secure the prosthesis in place, but it does not have the same function as the saddle regarding its position over the gingival crest. The clasp, although it assists in the retention of the prosthesis, is typically more focused on grasping the abutment teeth rather than straddling the gingival crest itself. Thus, the saddle is the most accurate answer concerning its relationship with the gingival crest.