Which of the following is incorrect regarding resin cements for all-ceramic crown cementation?

In the context of resin cements for all-ceramic crown cementation, it is important to understand the relationships between the materials involved. The assertion that the bond between dentin and resin cement is stronger than ceramic is incorrect.

Resin cements are designed to bond well with both dentin and ceramic surfaces, but the bond strength typically achieved between resin cement and ceramic is often greater than that achieved between resin cement and dentin. This relationship is crucial because the success of all-ceramic restorations heavily depends on the integrity of the bond to both the tooth substrate and the ceramic material.

The primary goal of using resin cements is to achieve a strong and reliable marginal seal, which helps in preventing microleakage and protecting the tooth from decay. Due to the specifics of the bonding mechanisms in dental materials, it is acknowledged in dental practice that while resin cements can bond adequately to dentin, their adhesion to ceramic is generally superior. This distinction is essential for practitioners to ensure longevity and effectiveness in all-ceramic restorations.

Therefore, recognizing that the bond between resin cement and ceramic is typically stronger than that to dentin is key in understanding material application techniques and the expected performances of these materials in clinical settings.