What is a primary consideration when selecting an impression material for use in complex cases?

In complex cases, the primary consideration when selecting an impression material is accuracy and detail reproduction. This is crucial because the quality of the impression directly impacts the fit and function of the final restoration or appliance. High accuracy allows for the capture of fine details, such as the morphology of the teeth and surrounding structures, which is essential for making well-fitting prostheses, orthodontic devices, or crowns.

Impression materials that provide superior accuracy often have specific properties, such as low viscosity, which helps to flow into the fine details of the teeth and gums. Therefore, prioritizing accuracy ensures that dental restorations are not only precise but also meet the clinical requirements for optimal patient outcomes.

While factors like cost-effectiveness, setting time, and available color options are important in different contexts, they do not have the same direct impact on the quality of the impression as accuracy and detail reproduction do, particularly in complex cases where precision is non-negotiable.