In which situation is it crucial to ensure proper viscosity of the cement?

Ensuring the proper viscosity of the cement is crucial when cementing indirect restorations. Indirect restorations, such as crowns, bridges, or inlays/onlays, require a precise fit and a strong bond to the tooth structure. The viscosity of the cement plays a significant role in achieving this. A cement that is too thin may not provide adequate retention, leading to failure of the restoration, while cement that is too thick can prevent proper seating, compromising the fit and function of the restoration.

When cementing indirect restorations, the viscosity must be optimized to create a reliable bond while allowing for adequate flow into all surfaces of the preparation. The interaction between the cement and the materials of the restoration, as well as the tooth structure, is critical for long-term success. Therefore, proper viscosity helps ensure that the restoration adheres effectively and maintains its position during function, ultimately resulting in better patient outcomes and longevity of the restoration.