Which term best describes the total amount of services available in a population (regardless of whether they are used)?

• A. Need
• B. Demand
• C. Supply
• D. Utilization

Answer: (C)

Supply is about the capacity to deliver care—the total amount of dental services that could be provided given current resources, regardless of whether people actually use them. It encompasses the number of dentists and hygienists, the number of clinics and operatories, equipment, hours of operation, and geographic availability. These factors define how much care could be delivered if all needs were pursued.

In contrast, need describes the health problem or deficiency that may require care, not how much care is available. Demand blends need with the ability and willingness to pay for services. Utilization is the actual use of services. Since the question asks for the total amount of services available, independent of use, supply is the best term.