What is the primary benefit of using polycarboxylate cement for PFM crowns?

What is the primary benefit of using polycarboxylate cement for PFM crowns?

• A. Fast setting time
• B. High strength
• C. Good biocompatibility
• D. Low thermal conductivity

Answer: (C)

The primary benefit of using polycarboxylate cement for porcelain-fused-to-metal (PFM) crowns is its good biocompatibility. Polycarboxylate cement is made from polyacrylic acid and calcium ions, which typically leads to a less irritant effect on dental tissues. This characteristic makes it suitable for use in areas where it will come into contact with soft tissues, such as the gingiva, as it minimizes the risk of inflammation or adverse reactions. Moreover, biocompatibility is essential in dental materials to ensure that they do not cause undue harm or irritation, leading to better patient outcomes. While characteristics like strength, setting time, and thermal conductivity are also important for dental materials, the biocompatibility of polycarboxylate makes it a preferred choice in situations where sensitivity and tissue response are critical considerations.

The primary benefit of using polycarboxylate cement for porcelain-fused-to-metal (PFM) crowns is its good biocompatibility. Polycarboxylate cement is made from polyacrylic acid and calcium ions, which typically leads to a less irritant effect on dental tissues. This characteristic makes it suitable for use in areas where it will come into contact with soft tissues, such as the gingiva, as it minimizes the risk of inflammation or adverse reactions.

Moreover, biocompatibility is essential in dental materials to ensure that they do not cause undue harm or irritation, leading to better patient outcomes. While characteristics like strength, setting time, and thermal conductivity are also important for dental materials, the biocompatibility of polycarboxylate makes it a preferred choice in situations where sensitivity and tissue response are critical considerations.