What is the purpose of placing die spacers in dental labs?

The purpose of placing die spacers in dental labs is to make room for cement, which is crucial in the process of dental restorations like crowns and bridges. Die spacers create a small gap between the die and the restoration, allowing for the appropriate thickness of cement to be used when the restoration is seated onto the tooth. This gap is important for achieving a proper fit and ensuring that there is enough space for the cement to flow and properly bond without interfering with the alignment of the restoration. Without die spacers, the restoration might not seat correctly, potentially leading to issues such as sensitivity, mechanical failure, or compromised aesthetics.

While increasing retention, enhancing aesthetics, and improving occlusion are important considerations in dental restorations, these factors are not the primary reasons for the use of die spacers. The main function remains to accommodate the cement necessary for secure adhesion and functionality of the dental prosthetic.