What type of stone is used in composite dental work?

White stone, commonly referred to as "gypsum," is used in composite dental work primarily for making models and impressions. It is known for its smooth surface and fine detail capture, which are critical qualities when creating accurate dental restorations. This type of stone is particularly favored because it allows for precise duplication of the oral cavity, essential for fitting composite materials correctly, as well as for evaluating the occlusion and alignment of dental work.

In the context of composite work, the accurate representation provided by white stone helps in the preparation and finalization of aesthetic restorations, ensuring they blend seamlessly with the natural teeth.

The other types of stones listed—green, red, and gray—serve different purposes and are not typically associated with the processes involved in composite dental work. Green stone, for example, is often used for rougher casts or for modeling in situations that require less detail, while red and gray stones are also meant for specific applications that do not align with the precision required in composite work.