What characteristic must occlusal reduction possess for sufficient strength in partial coverage?

For partial coverage restorations, adequate occlusal reduction is essential to ensure the strength and durability of the restoration. This type of restoration requires enough reduction to create a strong bond between the tooth structure and the material used, allowing for proper seating and retention.

Adequate reduction also accommodates the material thickness necessary to withstand masticatory forces without compromising the integrity of both the dental restoration and the underlying tooth. If the reduction is too minimal, the restoration may be weak, prone to fracture, or may not provide the necessary support for the occlusion. Conversely, excessive reduction can lead to a lack of tooth structure preservation and potentially expose the pulp if the preparation goes too deep.

Thus, for partial coverage restorations, achieving adequate occlusal reduction strikes the right balance, enhancing the strength of the restoration and ensuring it functions well in harmony with the remaining natural tooth structure.