When restoring weakened cusps with dental amalgam, which reduction method is recommended?

Reducing weakened cusps while restoring them with dental amalgam necessitates careful consideration of how to maintain functional and aesthetic integrity. The recommended approach of a 2mm reduction while following the original contour of the cusps ensures that the restoration effectively strengthens the tooth structure while preserving its natural shape.

Following the original contour allows for an optimal fit of the restorative material, which is crucial for both function and longevity. It helps to maintain occlusal harmony and allows for better distribution of forces during mastication. Additionally, a 2mm reduction is sufficient to remove the weakened or compromised tooth structure without sacrificing excessive healthy tooth material.

This approach contrasts with greater reductions or alterations to the original contour, which could jeopardize the structural integrity of the remaining tooth or lead to a less functional bite. Therefore, preserving as much of the tooth's original anatomy while ensuring the necessary removal of weakened areas strikes the best balance between restoration and preservation.