The Average Number of Decayed, Missing (Because of Caries), or Filled

question 4

Multiple Choice

The average number of decayed, missing (because of caries) , or filled permanent teeth (DMFT) steadily declined from 1967 to 1992 in the United States because of:

• A) improved oral hygiene.
• B) populations residing in fluoridated water communities.
• C) improvements in the design of toothbrushes.
• D) the use of dental floss.

---

Definitions:

Surplus Goods

Items for which the quantity supplied exceeds the quantity demanded, often leading to price reductions to clear excess inventory.

Competitive Market

A market where numerous sellers compete to sell their goods or services to a large number of buyers, promoting efficiency and innovation.

Law of Demand

The economic principle that there is an inverse relationship between the price of a good or service and the quantity demanded, assuming other factors are constant.

Price

The total of money envisaged, necessitated, or expended as a payment for something.