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.

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Definitions:

Cassation

The highest level of judicial appeal process where a court's decision can be overturned or annulled, often found in civil law jurisdictions.

Convenience Sample

A sampling method where participants are selected based on their easy accessibility and proximity to the researcher.

Random Sample

A group of people selected from a broader population, where each person has the same likelihood of being chosen.

Stratified Sample

A sampling technique where the population is divided into subgroups (strata) and samples are drawn from each stratum to ensure representation of the whole population.