Practice Community & Preventive Dentistry questions with answers and explanations.
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Tertiary prevention is measures that reduce disability and improve function after established disease.
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Herd immunity is population-level protection that arises when enough people are immune to reduce transmission.
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Incidence is the occurrence of new cases in a population at risk during a defined period.
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Prevalence is the proportion of a population that has a condition at a specified time or period.
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Sensitivity is the ability of a test to correctly identify people who have the disease.
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Specificity is the ability of a test to correctly identify people who do not have the disease.
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Relative risk is a ratio comparing disease risk in an exposed group with risk in an unexposed group.
