In which areas can the denture base be kept short of the depth of the vestibule?

In which areas can the denture base be kept short of the depth of the vestibule?

• A. Where posterior undercuts are present
• B. In areas with anterior undercuts
• C. In the premolar region
• D. Within the retromolar pad area

Answer: (B)

The denture base can be kept short of the depth of the vestibule in areas with anterior undercuts. This is primarily to facilitate proper retention and stability of the removable partial denture. When the denture base extends too deeply into the vestibule where anterior undercuts exist, it may not only interfere with the functional movement of the lips and cheeks but also pose challenges in achieving an adequate fit and stability for the denture. By keeping the denture base short in these areas, it allows for the necessary space to accommodate the soft tissues and provides better comfort without compromising the functionality or aesthetics of the prosthesis. Other areas mentioned, such as posterior undercuts, the premolar region, and the retromolar pad area, present different considerations for the design and functionality of the removable partial denture, often requiring more precise adaptations to ensure retention and support rather than being intentionally kept short.

The denture base can be kept short of the depth of the vestibule in areas with anterior undercuts. This is primarily to facilitate proper retention and stability of the removable partial denture. When the denture base extends too deeply into the vestibule where anterior undercuts exist, it may not only interfere with the functional movement of the lips and cheeks but also pose challenges in achieving an adequate fit and stability for the denture. By keeping the denture base short in these areas, it allows for the necessary space to accommodate the soft tissues and provides better comfort without compromising the functionality or aesthetics of the prosthesis.

Other areas mentioned, such as posterior undercuts, the premolar region, and the retromolar pad area, present different considerations for the design and functionality of the removable partial denture, often requiring more precise adaptations to ensure retention and support rather than being intentionally kept short.