What is the purpose of coating dies in a dental laboratory?

• A. To prevent distortion of the die
• B. To allow space for cement
• C. To enhance visibility of the prepared tooth
• D. To improve adhesion of restorative materials

Answer: (B)

Coating dies in a dental laboratory serves several important purposes, especially in the context of restoration procedures. One of the primary reasons for this practice is to provide a space for dental cement or other bonding agents that will be used when placing crowns, bridges, or other restorations. By creating a thin layer between the die and the restoration, the coating allows for proper seating of the restoration onto the tooth structure, ensuring that there is an adequate space for the cement, which is essential for achieving a tight, effective seal.

In addition to this, while enhancing visibility may appear beneficial, the primary goal of creating some space through the coating directly relates to the functional aspect of the restoration process rather than just visibility. The improved adhesion of restorative materials is also relevant, but the coating's primary focus is more on accommodating the cement than on enhancing material bonding.