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NEETMDS- Community Dentistry mcq
MDS PREP
The best method to show the association between height and weight of children in a class is by
1) Bar chart
2) Line diagram
3) Scatter diagram
4) Histogram
Community Dentistry Answer: 3

Pit and fissure sealants act by
1) Killing microorganisms causing caries
2) Blocking nutrient supply to bacteria
3) Neutralising acid produced by bacteria
4) All of the above
Community Dentistry Answer: 2

Maximum benefits are obtained if tooth treated with topical fluoride for a minimum period of
1) 30 sec
2) 1 min
3) 2 min
4) 4 min
Community Dentistry Answer: 4

For testing the statistical significance of the difference in heights of school children among three socio-economic groups, the most appropriate statistical test is
1) Student"s test
2) Chi - square test
3) Paired "t" test
4) One way analysis of variance (one way ANOVA)
Community Dentistry Answer: 4

Main mechanism of action of systemic fluoride is
1) Rreventing plaque formation
2) Reduction of solubility of enamel as content of fluoride increases
3) Both of the above
4) None of the above
Community Dentistry Answer: 2

McKay discovered Colorado stain in
1) 1901
2) 1897
3) 1908
4) 1930
Community Dentistry Answer: 1

1 part per million fluoride is
1) 1 mg in 10 L of water
2) 1 mg in 1 L of water
3) 10 mg in 1 L of water
4) 100 mg in 10 L of water
Community Dentistry Answer: 2

Ethical principles that requires health professionals to fully inform their patients and protect their confidentiality is the principle of
1) Justice
2) Autonomy
3) Veracity
4) Beneficence
Community Dentistry Answer: 2

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