How can excessive forces on partial FDP interim restoration connectors be reduced?

Reducing the depth and sharpness of the embrasures is an effective way to diminish excessive forces on partial fixed dental prosthesis (FDP) interim restoration connectors. Embrasures are the spaces between adjacent teeth and play a critical role in distributing occlusal forces when the teeth come into contact during function. When these spaces are narrow or sharply contoured, they can create point contacts that focus stress into specific areas of the connector, potentially leading to overload and failure.

By modifying the embrasures to be less deep and less sharp, the distribution of occlusal forces is improved, allowing for broader contact areas. This can help in evenly spreading the forces across the connectors of the interim restoration, thereby reducing the risk of breakage or deformation under functional loads. In this way, the overall integrity of the interim restoration is preserved, enhancing its performance and longevity.

The other options may provide benefits in specific contexts, but they do not address the primary issue of force concentration in the same manner as adjusting the embrasures. For instance, providing lighter occlusal contacts might reduce some force but does not directly contribute to the distribution of forces within the connectors. Encircling the whole crown or overcontouring the axial surfaces could potentially create other issues related to