Saying that the average 17-year-old has 4.96 decayed, missing, or filled teeth is an example of which measure?

Saying that the average 17-year-old has 4.96 decayed, missing, or filled teeth is an example of which measure?

• A. Prevalence
• B. Incidence
• C. Mortality
• D. Morbidity

Answer: (A)

When we summarize dental caries in a population, the important distinction is between measuring how widespread the disease is and how much disease exists or burdened individuals carry. Saying that the average 17-year-old has 4.96 decayed, missing, or filled teeth is reporting a mean level of caries experience per person. That expresses the extent or burden of the disease within the group—the amount of disease present and the treatment need—rather than just how many people have any caries at all. Incidence would mean new cases developing over a period of time, which this statement does not address. Mortality is about death, which isn’t relevant to caries. Prevalence is about the proportion of individuals who have the condition at a given point, not the average number of affected teeth per person. So this statistic best fits a morbidity measure, reflecting the burden of caries experience in the population. If you wanted prevalence, you’d report the percentage of individuals with at least one caries experience (DMFT > 0), not the average DMFT.

When we summarize dental caries in a population, the important distinction is between measuring how widespread the disease is and how much disease exists or burdened individuals carry. Saying that the average 17-year-old has 4.96 decayed, missing, or filled teeth is reporting a mean level of caries experience per person. That expresses the extent or burden of the disease within the group—the amount of disease present and the treatment need—rather than just how many people have any caries at all.

Incidence would mean new cases developing over a period of time, which this statement does not address. Mortality is about death, which isn’t relevant to caries. Prevalence is about the proportion of individuals who have the condition at a given point, not the average number of affected teeth per person. So this statistic best fits a morbidity measure, reflecting the burden of caries experience in the population. If you wanted prevalence, you’d report the percentage of individuals with at least one caries experience (DMFT > 0), not the average DMFT.