Dental OSCE 2025 – 400 Free Practice Questions to Pass the Exam

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What is the primary function of occlusal rests in a RPD?

To enhance esthetics

To resist occlusal forces

The primary function of occlusal rests in a removable partial denture (RPD) is to resist occlusal forces. Occlusal rests serve as a supportive component within the framework of the RPD, effectively transferring and distributing stress to the remaining teeth or edentulous areas during function. This design helps maintain the integrity and stability of both the denture and the teeth it supports. When occlusal loads are applied, the rests help prevent the RPD from settling into the tissue or becoming displaced, thus ensuring better retention and enhancing the overall function of the prosthesis.

While other aspects, such as enhancing esthetics, facilitating cleaning, and providing flexibility in design, are important considerations within the context of RPDs, they are secondary to the primary role of occlusal rests in resisting occlusal forces and contributing to the mechanical stability of the denture system.

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To facilitate cleaning

To provide flexibility in the design

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