MDS PREP

Which of the following are full mouth indices?
1) Russell"s periodontal index
2) DMF index
3) CPITN index
4) Both A and B

Community Dentistry Answer: 4

To test the association between risk factor and disease which of the following is the weakest study design
1) Case control study
2) Ecological study
3) Cohort study
4) Cross-sectional study

Community Dentistry Answer: 2

Which one of the sampling best enables the researcher to study differences that might exist between different subgroups of population
1) Stratified
2) Systematic
3) Simple random
4) Convenience

Community Dentistry Answer: 1

Which of the following is not essential for calculus formation
1) Increase in pH
2) Salivary mineral content
3) Bacteria
4) Mucopolysaccharides

Community Dentistry Answer: 3

Universal numbering to caries according to WHO is
1) 0
2) 1
3) 2
4) 3

Community Dentistry Answer: 2

In school water fluoridation, amount of F used is
1) 0.7-1.2 ppm
2) 1.6-3 ppm
3) 3-4 ppm
4) 12 ppm

Community Dentistry Answer: 3

In the aetiology of dental caries, one of the following is not an environmental factor
1) Saliva
2) Microorganisms
3) Refined carbohydrates
4) Structure of the tooth

Community Dentistry Answer: 4

A trial where the study that determines feasibility and practicality is called a
1) Longitudnal study
2) Control study
3) Placebo
4) Pilot study

Community Dentistry Answer: 4

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MDS PREP

Which of the following are full mouth indices?1) Russell"s periodontal index2) DMF index3) CPITN index4) Both A and B

To test the association between risk factor and disease which of the following is the weakest study design1) Case control study2) Ecological study3) Cohort study4) Cross-sectional study

Which one of the sampling best enables the researcher to study differences that might exist between different subgroups of population1) Stratified2) Systematic3) Simple random4) Convenience

Which of the following is not essential for calculus formation1) Increase in pH2) Salivary mineral content3) Bacteria4) Mucopolysaccharides

Universal numbering to caries according to WHO is1) 02) 13) 24) 3

In school water fluoridation, amount of F used is1) 0.7-1.2 ppm2) 1.6-3 ppm3) 3-4 ppm4) 12 ppm

In the aetiology of dental caries, one of the following is not an environmental factor1) Saliva2) Microorganisms3) Refined carbohydrates4) Structure of the tooth

A trial where the study that determines feasibility and practicality is called a 1) Longitudnal study2) Control study3) Placebo4) Pilot study

Explore by subjects

Which of the following are full mouth indices?
1) Russell"s periodontal index
2) DMF index
3) CPITN index
4) Both A and B

To test the association between risk factor and disease which of the following is the weakest study design
1) Case control study
2) Ecological study
3) Cohort study
4) Cross-sectional study

Which one of the sampling best enables the researcher to study differences that might exist between different subgroups of population
1) Stratified
2) Systematic
3) Simple random
4) Convenience

Which of the following is not essential for calculus formation
1) Increase in pH
2) Salivary mineral content
3) Bacteria
4) Mucopolysaccharides

Universal numbering to caries according to WHO is
1) 0
2) 1
3) 2
4) 3

In school water fluoridation, amount of F used is
1) 0.7-1.2 ppm
2) 1.6-3 ppm
3) 3-4 ppm
4) 12 ppm

In the aetiology of dental caries, one of the following is not an environmental factor
1) Saliva
2) Microorganisms
3) Refined carbohydrates
4) Structure of the tooth

A trial where the study that determines feasibility and practicality is called a
1) Longitudnal study
2) Control study
3) Placebo
4) Pilot study