Community Dentistry NEET MDS Practice Test

1

Community Dentistry

An expression of probability based on the ratio of the difference between two means, divided by the standard error of the difference is
1 standard deviation of a mean
2. standard error of the mean
3. t value
4. median

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

An expression of probability based on the ratio of the difference between two means, divided by the standard error of the difference, is known as the t value (or t-statistic).�This value is used in hypothesis testing to determine if the means of two groups are significantly different.

2

Community Dentistry

Topically applied acidulated phosphate fluoride is used in the concentration of
1. 6%
2. 1.23%
3 14%
4. 2%

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

The correct concentration for topically applied acidulated phosphate fluoride is 1.23% (Answer: 2). This concentration is commonly used in various dental products like gels, foams, and varnishes for professional in-office applications to strengthen tooth enamel and prevent decay. It is acidulated to facilitate better penetration into the enamel.

3

Community Dentistry

CPITN is used in
1) Biggest population
2) Small population
3) Diagnostic tool
4) Screening purposes

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

CPITN (Community Periodontal Index of Treatment Needs) is primarily used for screening purposes in epidemiological surveys to assess periodontal treatment needs in populations.

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