What is one common form of elastomeric material application in dentistry?

One common form of elastomeric material application in dentistry is as a base and catalyst. In the preparation of elastomeric impressions, a combination of a base and a catalyst is utilized to create a material that can flow and capture detailed impressions of the oral structures. The base typically contains the polymer, while the catalyst is responsible for initiating the curing process that allows the material to set into a firm, elastic form.

The combination of base and catalyst is essential because it enables the dentist or dental assistant to mix the components to achieve the desired consistency and working time before the material sets. This versatility is vital for accurate impressions since it allows the material to conform to the anatomic details of the teeth and soft tissues, ensuring a precise reproduction of the dental anatomy for diagnostic and treatment planning purposes.

In contrast, using elastomeric materials solely as a catalyst or as a liquid only would not provide the desired properties for impression making, and relying on them only as a solid would mean losing the material's ability to accurately capture fine details before it sets.