What should the floor of the occlusal rest be for a desired projection of occlusal loads?

The floor of the occlusal rest should be designed to be concave to optimally accommodate the occlusal loads placed on it. A concave floor helps ensure that the loading forces are effectively distributed across the surface of the rest during function. This design allows for a proper fit against the opposing teeth and enhances the stability of the restoration or partial denture, reducing the risk of displacement.

In addition, the shape aids in maintaining the vertical dimension of occlusion and provides better retention for the prosthesis or restoration. An appropriately concave floor harnesses the anatomical contours of the occlusal area, thereby contributing to a more comfortable and functional prosthodontic solution.