What is the primary purpose of using a dental articulator?

The primary purpose of using a dental articulator is to simulate jaw movements. Dental articulators are mechanical devices that mimic the occlusion and movements of the jaw, which is essential for various restorative and prosthetic dental procedures. By accurately reproducing the movement of the patient's jaw, dental professionals can evaluate the relationship between the upper and lower teeth, as well as the dental casts that represent them.

This simulation allows for precise adjustments and aids in the design and fitting of restorations, helping to ensure that they function correctly within the patient's oral cavity. The ability to study and analyze occlusion and functional movements ultimately contributes to improved patient outcomes in terms of comfort, function, and aesthetics.

Considering the other options, creating impressions relates to capturing the details of the teeth and surrounding tissues, which is a different process that does not require the use of an articulator. Storing dental materials is unrelated as this task involves keeping materials organized and accessible, and shaping dental casts typically involves manual techniques rather than the functionality provided by an articulator.