Public Health Dentistry Multiple Choice Question And Answers

Multiple Choice Questions

Question 1. Which of the following fluoride solutions is unstable and has to be prepared freshly?

1. APF gel
2. SnF
3. NaF
4. SnF and NaF

Answer. 2. SnF

Question 2. The first dental hygienist was:

1. Dr Alfred C Fones
2. Mrs. Irene Newman
3. John Green Wood
4. Churchill

Answer. 1. Dr Alfred C Fones

Question 3. Which of the following is not a principle of primary health care?

1. Intersectoral coordination
2. Planning
3. Community participation
4. Equitable distribution

Answer. 2. Planning

Read And Learn More: Public Health Dentistry Question And Answers

Question 4. Which of the following is least cariogenic?

1. Fructose
2. Sorbitol
3. Glucose
4. Sucrose

Answer. 2. Sorbitol

Question 5. Pellagra results from deficiency of:

1. Riboflavin
2. Folate
3. Pyridoxine
4. Nicotinic acid

Answer. 4. Nicotinic acid

Question 6. In a slow sand filter, sand bed is cleaned by:

1. Scraping
2. Backwashing
3. Digging
4. Burning

Answer. 1. Scraping

Question 7. SD means:

1. Dispersion around mean
2. Root mean square deviation
3. Sum total of all means
4. Middle value

Answer. 1. Dispersion around mean

Question 8. Which study design is more suitable for rare cases with small number?

1. Case control studies
2. Cohort study
3. Both of the above
4. None of the above

Answer. 1. Case control studies

Question 9. Procedural steps in dental public health are:

1. Analysis, operation, survey, finance, appraisal, planning
2. Survey, planning, operation, finance, appraisal, analysis
3. Survey, analysis, planning, operation, finance, appraisal
4. Planning, survey, operation, finance, appraisal, analysis

Answer. 3. Survey, analysis, planning, operation, finance, appraisal

Question 10. Slogan of “A clean tooth never decay” was given by:

1. Leon William
2. GM Wright
3. Alfred C. Fones
4. GV Black

Answer. 1. Leon William

Question 11. Which of the following is the non-random type of sampling?

1. Snow Ball
2. Simple random
3. Multiphase
4. Systemic

Answer. 1. Snow Ball

Question 12. The study of disease frequency and distribution is called as:

1. Standard deviation
2. Variance
3. Epidemiology
4. Survey

Answer. 3. Epidemiology

Question 13. Which of the following is not the test of significance?

1. t-test
2. Z-test
3. Square test
4. ANOVA test

Answer. 4. ANOVA test

Question 14. For large country survey the sampling method of choice:

1. Multiphase sampling
2. Multiple sampling
3. Cluster sampling
4. Multistage sampling

Answer. 4. Multistage sampling

Question 15. Case control study is also called as:

1. Retrospective study
2. Prospective study
3. Cross-sectional study
4. None of the above

Answer. 1. Retrospective study

Question 16. Dentist Act came into action in:

1. 1949
2. 1948
3. 1947
4. 1950

Answer. 2. 1948

Question 17. Calibration is a procedure to assess:

1. Intraexaminer variation
2. Interexaminer variation
3. Specificity of the study
4. Both (a) and (b)

Answer. 4. Both (a) and (b)

Question 18. Relative risk is used in:

1. Case control study
2. Survey
3. Cohort study
4. Cross-sectional study

Answer. 3. Cohort study

Question 19. Index ages for the pathfinder survey are:

1. 5, 15, 25, 35, 65
2. 5, 10, 15, 30 and 60 to 70 years
3. 5, 12, 15, 35 to 44 and 65 to 74 years
4. 5 to 10, 15, 35 to 45 and 65 to 75 years

Answer. 3. 5, 12, 15, 35 to 44 and 65 to 74 years

Question 20. Normal curve resembles:

1. Bell-shaped
2. Sigmoid-shaped
3. V-shaped
4. None of the above

Answer. 1. Bell-shaped

Question 21. Method of choice when suitable land is not available for disposal is:

1. Dumping
2. Controlled tipping
3. Incineration
4. Composting

Answer. 3. Incineration

Question 22. What type of fluoride is most commonly found in toothpaste?

1. Stannous fluoride and potassium chloride
2. Strontium chloride and potassium fluoride
3. Sodium monofluorophosphate and sodium fluoride
4. Potassium fluoride and sodium fluoride

Answer. 3. Sodium monofluorophosphate and sodium fluoride

Question 23. Which of the following is correct statement?

1. Delta dental plan was given in 1989
2. Medicine was given in 1966
3. Both of the above
4. Delta dental plan was given in 1966

Answer. 4. Delta dental plan was given in 1966

Question 24. USA launched first water fluoridation in Grand Rapids in:

1. 1925
2. 1945
3. 1943
4. 1954

Answer. 2. 1945

Question 25. Father of Indian Dentistry:

1. Dr R Ahmed
2. Dr KL Shourie
3. Dr Falis Mehta
4. Dr Anil Kohli

Answer. 1. Dr R Ahmed

Question 26. EFDA is:

1. Expended function dental auxilliaries
2. Extra funding dental appliances
3. Expanded forensic dentistry application
4. None of the above

Answer. 1. Expended function dental auxilliaries

Question 27. High school children were taught regarding preventive oral health behavior by elementary school children:

1. Theta program
2. Tattle tooth program
3. Learning about your oral health
4. Tooth keeper program

Answer. 1. Theta program

Question 28. The waste stored in a red bag can be treated through:

1. Autoclaving
2. Microwaving
3. Chemical treatment
4. All

Answer. 1. Autoclaving

Question 29. Endemic disease means that a disease:

1. Occurs clearly in excess of normal expectancy
2. Is constantly present in a given population
3. Exhibits seasonal pattern
4. Is prevalent among animals

Answer. 2. Is constantly present in a given population

Question 30. To test the hypothesis regarding the causation of a disease in an epidemiological investigation undertaken is called:

1. Case control study
2. Cohort study
3. Retrospective study
4. None

Answer. 1. Case control study

Question 31. India’s Dentist Act was passed in:

1. 1949
2. 1947
3. 1948
4. 1950

Answer. 3. 1948

Question 32. Among the given observation, if any observation repeats maximum number of time it is known as:

1. Median
2. Mean
3. Mode
4. None

Answer. 3. Mode

Question 33. Which of the following can have more than one value?

1. Mean
2. Range
3. Mode
4. Median

Answer. 3. Mode

Question 34. The difference between the maximum and minimum observation is known as:

1. Range
2. Mode
3. Quarentile deviation
4. Standard deviation

Answer. 1. Range

Question 35. Bias due to different rates of admission to hospitals:

1. Berkensonian
2. Confounding
3. Information
4. Selection

Answer. 1. Berkensonian

Question 36. The shape of normal curve is:

1. U-shaped
2. V-shaped
3. Bell shaped
4. Dumbell shaped

Answer. 3. Bell shaped

Question 37. Census is conducted every:

1. 2 years
2. 5 years
3. 7 years
4. 10 years

Answer. 2. 5 years

Question 38. Heart of randomized control trial:

1. Protocol
2. Randomization
3. Follow up
4. Assessment

Answer. 2. Randomization

Question 39. Minimum number of professors in dental faculty in dental colleges with 60 admissions:

1. 4
2. 5
3. 6
4. 9

Answer. 3. 6

Question 40. How many registers are named in DCI?

1. A and B
2. A
3. B
4. Many

Answer. 1. A and B

Question 41. Descriptive epidemiology is also known as:

1. Experimental study
2. Observational study
3. Analytical study
4. Interventional study

Answer. 3. Analytical study

Question 42. Brudevold’s solution is also known as:

1. Sodium fluoride
2. Stannous fluoride
3. Acidulated phosphate fluoride
4. Amine fluoride

Answer. 3. Acidulated phosphate fluoride

Question 43. Nalgonda technique is used for:

1. Fluoridation
2. Defluoridation
3. Both
4. None of above

Answer. 4. None of above

Question 44. School Dental Nurse is a type of dental auxiliary:

1. Nonoperating auxiliary
2. Operating auxiliary
3. Medical auxiliary
4. None of above

Answer. 2. Operating auxiliary

Question 45. Who discovered periodontal disease index?

1. Green and vermillion
2. Loe and silness
3. Ramfjord
4. Silness and loe

Answer. 3. Ramfjord

Question 46. Who introduced Tell Show Do?

1. John Show
2. William Jack R
3. Addlestone
4. Mac Mohan

Answer. 3. Addlestone

Question 47. Drinking water is:

1. Hard water
2. Soft water
3. Moderately hard water
4. Distilled water

Answer. 2. Soft water

Question 48. First step of planning process is:

1. Evaluate
2. Identifying constraint
3. Identifying the problem
4. Determine Priorities

Answer. 3. Identifying the problem

Question 49. The headquarter of UNICEF is situated in:

1. Los Angles
2. Washington DC.
3. New York
4. Las Vegas

Answer. 3. New York

Question 50. Dental Council of India was formed:

1. April 17,1948
2. April 12, 1949
3. August 10, 1942
4. July 18, 1950

Answer. 2. April 12, 1949

Question 51. The functions of statistics are:

1. Collection of data
2. Presentation of data
3. Analysis and interpretation of data
4. All of the above

Answer. 4. All of the above

Question 52. Statistical results are:

1. Absolutely correct
2. Not true
3. True on average
4. Universally true

Answer. 3. True on average

Question 53. Charts and graphs facilitate:

1. Comparison of values
2. To know the trend
3. To know the relationship
4. All of the above

Answer. 4. All of the above

Question 54. Which diagram is used to represent quantitative data?

1. Bar diagram
2. Pie chart
3. Histogram
4. Multiple bar diagram

Answer. 3. Histogram

Question 55. To represent two or more factors simultaneously the following diagram is used:

1. Bar diagram
2. Histogram
3. Pie chart
4. Multiple bar diagram

Answer. 4. Multiple bar diagram

Question 56. Compilation of data means:

1. Grouping of similar data
2. Collection of data
3. Presentation of data
4. Tabulation of data

Answer. 1. Grouping of similar data

Question 57. Median is a measure of:

1. Average
2. Variation
3. Correlation
4. All of the above

Answer. 1. Average

Question 58. Following are the measures of central tendency except:

1. Mean
2. Median
3. Mode
4. Standard deviation

Answer. 4. Standard deviation

Question 59. Sum of observations by number of observations is known as:

1. Arithmetic mean
2. Geometric mean
3. Harmonic mean
4. Absolute mean

Answer. 1. Arithmetic mean

Question 60. Among the given observations if any observations repeat maximum number of time is known as:

1. Median
2. Arithmetic mean
3. Mode
4. None of the above

Answer. 3. Mode

Question 61. Proponents of plaque index are:

1. Loe and Silness
2. Silness and Loe
3. Silness
4. Loe

Answer. 2. Silness and Loe

Question 62. What type is oral hygiene index?

1. Simple index
2. Simplified index
3. Irreversible index
4. Reversible index

Answer. 2. Simplified index

Question 63. Measures of central tendency refer to:

1. Standard deviation
2. Frequency
3. Mean, median, mode
4. Frequency interval

Answer. 3. Mean, median, mode

Question 64. Name of the present President of Dental Council of India is:

1. Dr Anil kohli
2. Dr RK Bali
3. Dr D Majumdar
4. Pranav Mukherjee

Answer. 3. Dr D Majumdar

Question 65. First Community Water Fluoridation Programme was carried out in:

1. 1942
2. 1945
3. 1955
4. 1952

Answer. 2. 1945

Question 66. APF gel is applied in concentration of:

1. 1:32
2. 1:23
3. 1:42
4. 1:24

Answer. 2. 1:23

Question 67. Primary prevention refers to:

1. Early diagnosis and prompt treatment
2. Health promotion and specific protection
3. Rehabilitation and disability
4. All of the above

Answer. 2. Health promotion and specific protection

Question 68. First bone is to be found in the body:

1. Mandible
2. Maxilla
3. Clavicle
4. Hyoid

Answer. 3. Clavicle

Question 69. Tattle tooth programme was developed in:

1. 1972-1974
2. 1974-1976
3. 1976-1978
4. 1978-1980

Answer. 2. 1974-1976

Question 70. Chlorhexidine has the activity of:

1. Antiplaque action
2. Antibacterial action
3. Both a and b
4. None of the above

Answer. 3. Both a and b

Question 71. The data obtained directly from the individual is called as:

1. Primary data
2. Secondary data
3. Tertiary data
4. Quaternary data

Answer. 1. Primary data

Question 72. The data obtained from other outside sources is called as:

1. Primary data
2. Secondary data
3. Tertiary data
4. Quaternary data

Answer. 2. Secondary data

Question 73. A major disadvantage of private clinic is:

1. There is no quality control
2. Record keeping is not simple
3. Poor people cannot afford it
4. Very much time is wasted in formalities and waiting

Answer. 3. Poor people cannot afford it

Question 74. Where and when the first dental institution of India to teach dentistry on modern lines was started?

1. Mumbai in the year 1931
2. Kolkata in the year 1920
3. Delhi in the year 1940
4. Chennai in the year 1911

Answer. 2. Kolkata in the year 1920

Question 75. Dental institution is an organization established for:

1. Dental health education
2. Social cultural or charitable objectives
3. Disabled people
4. None of the above

Answer. 1. Dental health education

Question 76. Dental health education is concerned with:

1. Treatment of dental diseases
2. Prevention of dental diseases
3. Interception of dental diseases
4. Prevention and interception of dental diseases

Answer. 2. Prevention of dental diseases

Question 77. Which of the following is not an input unit?

1. Keyboard
2. Mouse
3. CPU
4. Disk drive

Answer. 3. CPU

Question 78. IDA is affiliated to:

1. Asian Pacific Dental Federation
2. WHO
3. Pan American Health Organization
4. National Institute of Dental Research

Answer. 1. Asian Pacific Dental Federation

Question 79. IDA was founded in:

1. 1925
2. 1935
3. 1945
4. 1955

Answer. 3. 1945

Question 80. The Dental Amendment Act was commenced in the year:

1. 1989
2. 1990
3. 1991
4. 1993

Answer. 4. 1993

Question 81. Weight of CPITN probe:

1. 5 g
2. 10 g
3. 20 g
4. 7 g

Answer. 1. 5 g

Question 82. Dentists Act was introduced on:

1. 12th Apr 1949
2. 7th Apr 1948
3. 29th Mar 1948
4. 26th Jan 1950

Answer. 3. 29th Mar 1948

Question 83. Father of epidemiology:

1. Hippocrates
2. John Snow
3. John Last
4. Claudius Galen

Answer. 2. John Snow

Question 84. First artificial water fluoridation plant was put up in:

1. London
2. Grand Rapids
3. Colorado
4. New York

Answer. 2. Grand Rapids

Question 85. A hypothesis is:

1. A report
2. A synopsis
3. A theory
4. A supposition from an observation

Answer. 4. A supposition from an observation

Question 86. ART was pioneered in:

1. Zimbabwe
2. Thailand
3. Tanzania
4. South Africa

Answer. 3. Tanzania

Question 87. Second generation pit and fissure sealants are:

1. Chemically cured
2. Visible light cured
3. UV light cured
4. All of the above

Answer. 1. Chemically cured

Question 88. Milk fluoridation was introduced by:

1. Wespi
2. Zeigler
3. Dean
4. Mckay

Answer. 2. Zeigler

Question 89. Tattle tooth program was conducted in:

1. Texas
2. North Carolina
3. Toronto
4. New York

Answer. 1. Texas

Question 90. WHO headquarters is situated in:

1. London
2. Geneva
3. Mumbai
4. Rome

Answer. 2. Geneva

Question 91. Normal curve is also known as:

1. Stephen’s curve
2. Gaussian curve
3. Sigmoid curve
4. Community curve

Answer. 2. Gaussian curve

Question 92. Standard deviation is a measure of:

1. Correlation
2. Statistical significance
3. Central tendency
4. Variation

Answer. 3. Central tendency

Question 93. Which of the following is a parametric test?

1. Chi-square test
2. t-test
3. Mann Whitney test
4. Kruskal Wallis Test

Answer. 2. t-test

Question 94. The hypothesis, which asserts that there is no real difference in the sample is:

1. Alternative hypothesis
2. Null hypothesis
3. All or none law
4. Situational hypothesis

Answer. 2. Null hypothesis

Question 95. Histogram is a:

1. Pie diagram
2. Bar diagram
3. Frequency polygon
4. Line diagram

Answer. 2. Bar diagram

Question 96. The most commonly employed sampling technique in national pathfinder survey is:

1. Snowball sampling
2. Convenience sampling
3. Quota sampling
4. Stratified cluster sampling

Answer. 4. Stratified cluster sampling

Question 97. Middle value of a series of given data arranged in an ascending or descending order is called:

1. Median
2. Mode
3. Mean
4. Average

Answer. 1. Median

Question 98. The key feature of randomized control trial is:

1. Matching
2. Randomization
3. None of these
4. Both of these

Answer. 2. Randomization

Question 99. Recruiting study participants through social network represents which sampling technique?

1. Simple random sampling
2. Stratified cluster sampling
3. Systematic random sampling
4. Snowball sampling

Answer. 4. Snowball sampling

Question 100. Which among these is non-probability sampling technique?

1. Snowball sampling
2. Convenience sampling
3. Quota sampling
4. All of the above

Answer. 4. All of the above

Question 101. OHI – S was developed by:

1. Greene and Vermilion
2. Russell AL
3. Silness and Loe
4. Trendley Dean

Answer. 1. Greene and Vermilion

Question 102. Dentist’s day is celebrated on:

1. 8th March
2. 6th March
3. 31st May
4. 7th Apr

Answer. 2. 6th March

Question 103. First known epidemiologist:

1. Hippocrates
2. John M Last
3. John Snow
4. Thomas Syndenham

Answer. 3. John Snow

Question 104. APF was introduced by:

1. Knutson
2. Brudevold
3. Dean
4. McKay

Answer. 2. Brudevold

Question 105. A decision about a course of action is:

1. Goal
2. Aim
3. Objective
4. Plan

Answer. 1. Goal

Question 106. Incidence of a disease can be known by:

1. Longitudinal study
2. Pilot study
3. Cross – sectional study
4. Retrospective study

Answer. 1. Longitudinal study

Question 107. First dental college in India was started in the city of:

1. Mumbai
2. Delhi
3. Chennai
4. Kolkata

Answer. 4. Kolkata

Question 108. Schmutzdecke is:

1. Vital layer
2. Zoogleal layer
3. Biological layer
4. All of the above

Answer. 3. Biological layer

Question 109. WHO’s global school health initiative was launched on:

1. 1995
2. 2000
3. 2014
4. 1980

Answer. 1. 2000

Question 110. Relationship between prevalence and incidence:

1. P = l × D
2. l = P × D
3. P = l/D
4. P=D/l

Answer. 1. P = l × D

Question 111. Normal curve is also known as:

1. Stephen’s curve
2. Gaussian curve
3. Sigmoid curve
4. Community curve

Answer. 2. Gaussian curve

Question 112. Standard deviation is a measure of:

1. Correlation
2. Statistical significance
3. Central tendency
4. Variation

Answer. 4. Variation

Question 113. Which of the following is a parametric test?

1. Chi – Square test
2. T – test
3. Mann Whitney test
4. Kruskal Wallis test

Answer. 2. T – test

Question 114. The hypothesis which asserts that there is no real difference in the sample is:

1. Alternative hypothesis
2. Null hypothesis
3. All or None law
4. Situational hypothesis

Answer. 2. Null hypothesis

Question 115. Histogram is a:

1. Pie diagram
2. Bar diagram
3. Frequency polygon
4. Line diagram

Answer. 2. Bar diagram

Question 116. The most commonly employed sampling technique in national pathfinder survey is:

1. Snowball sampling
2. Convenience sampling
3. Quota sampling
4. Stratified cluster sampling

Answer. 4. Stratified cluster sampling

Question 117. Middle value of a series of a given data arranged in an ascending or descending order is called:

1. Median
2. Mode
3. Mean
4. Average

Answer. 1. Median

Question 118. The key feature of randomized controlled trial is:

1. Matching
2. Randomization
3. None of these
4. Both of these

Answer. 2. Randomization

Question 119. Recruiting study participants through social network represents which sampling technique?

1. Simple random sampling
2. Stratified cluster sampling
3. Systemic random sampling
4. Snowball sampling

Answer. 4. Snowball sampling

Question 120. Which among these is nonprobability sampling technique?

1. Snowball sampling
2. Convenience sampling
3. Quota sampling
4. All the above

Answer. 4. All the above

Question 121. Correlation between two variables is depicted by:

1. Bar diagram
2. Line diagram
3. Histogram
4. Scatter diagram

Answer. 4. Scatter diagram

Question 122. Prevalence of disease affects:

1. Sensitivity
2. Specificity
3. Predictive value
4. Repeatability

Answer. 3. Predictive value

Question 123. In 3 × 3 table, the number of degrees of freedom is:

1. 3
2. 9
3. 4
4. 81

Answer. 3. 4

Question 124. Vipeholm study is indicated in:

1. AIDS
2. Dental caries
3. Oral cancer
4. Periodontal disease

Answer. 2. Dental caries

Question 125. Another name of case control study is:

1. Retrospective
2. Prospective
3. Prevalence
4. Incidence

Answer. 1. Retrospective

Question 126. Which type of bias is eliminated by blinding?

1. Berksonian
2. Recall
3. Confounding
4. Interviewers

Answer. 4. Interviewers

Question 127. Example for the specific protection is:

1. Immunization
2. Health education
3. Potable water
4. Decayed tooth restoration

Answer. 1. Immunization

Question 128. In which of the phase randomized control trials are conducted?

1. Phase 1
2. Phase 2
3. Phase 3
4. Phase 4

Answer. 3. Phase 3

Question 129. Another name of periodontal index is:

1. Loe and Sillness Index
2. Russell index
3. Romford index
4. Schick and Ash index

Answer. 2. Russell index

Question 130. What does CPITN stands for?

1. Community periodontal index with treatment needs
2. Community periodontal index for treatment needs
3. Community periodontal index of treatment needs
4. Community periodontal index and treatment needs

Answer. 3. Community periodontal index of treatment needs

Question 131. Name the DMF teeth:

1. 28
2. 30
3. 26
4. 32

Answer. 4. 32

Question 132. Duraphat is:

1. Fluoride varnish
2. Stannous fluoride
3. GIC
4. Lacquer

Answer. 1. Fluoride varnish

Question 133. In which region tooth fluoride is least effective?

1. Cusp
2. Buccal area
3. Palatal area
4. Pit and Fissure area

Answer. 4. Pit and Fissure area

Question 134. India aim to eliminate which disease by 2015?

1. Malaria
2. Filariasis
3. Kala azar
4. Tuberculosis

Answer. 2. Filariasis

Question 135. How much population is covered by the subcenter?

1. 1000 population
2. 2000 population
3. 3000 population
4. 5000 population

Answer. 4. 5000 population

Question 136. As tooth is extracted, it should be discarded in which bag?

1. Red
2. Black
3. Yellow
4. Blue

Answer. 1. Red

Question 137. Recognized behavior in society is known as:

1. Custom
2. Tradition
3. Culture
4. Folkways

Answer. 4. Folkways

Question 138. Reverse smoking is most commonly practiced in which State of India?

1. Madhya Pradesh
2. Uttar Pradesh
3. Arunachal Pradesh
4. Andhra Pradesh

Answer. 4. Andhra Pradesh

Question 139. New cross auxiliaries are:

1. Dental nurse in India
2. Dental nurse in Australia
3. Dental nurse in Britain
4. Dental nurse in USA

Answer. 3. Dental nurse in Britain

Question 140. Waste water from kitchen:

1. Kitchen water
2. Garbage
3. Sewage
4. Sullage

Answer. 4. Sullage

Question 141. Chemical used for disinfection of water is:

1. Bleaching powder
2. Potassium chloride
3. Sodium chloride
4. Calcium chloride

Answer. 1. Bleaching powder

Question 142. The percentage of APF gel used for topical application:

1. 1.23%
2. 2%
3. 10%
4. 8%

Answer. 1. 1.23%

Question 143. One of the following age is chosen as the global monitoring age for the caries for international comparison and monitoring of disease trends:

1. 5 years
2. 12 years
3. 15 years
4. 40 years

Answer. 2. 12 years

Question 144. In simplified oral hygiene index, how many surfaces of the teeth are examined:

1. 6
2. 12
3. 18
4. 24

Answer. 1. 6

Question 145. “World health day” is celebrated on:

1. 1st April
2. 11th June
3. 7th April
4. 8th March

Answer. 3. 7th April

Question 146. A sample in which every element in the population has an equal and independent chance of being selected is termed as:

1. Simple random sample
2. Judgment sample
3. Convenient sample
4. Snow ball sample

Answer. 1. Simple random sample

Question 147. The term incidence refers to the:

1. Rate of disease
2. Number of new cases of disease
3. Proportion of population affected by the disease
4. Number of old and new cases of disease

Answer. 2. Number of new cases of disease

Question 148. One of the following is not a pit and fissure sealant:

1. Polyurethane
2. Cyanoacrylates
3. Bis-GMA
4. Merbromin

Answer. 4. Merbromin

Question 149. Treating dental defects as they occur and not waiting until needs build up is called:

1. Comprehensive dental care
2. Incremental dental care
3. Essential care
4. Initial care

Answer. 2. Incremental dental care

Question 150. Least cariogenic sugar is:

1. Fructose
2. Glucose
3. Sucrose
4. Xylitol

Answer. 4. Xylitol

Question 151. When a series of lectures are delivered on a single subject of focus it is called as:

1. Symposium
2. Panel discussion
3. Workshop
4. Conference

Answer. 1. Symposium

Question 152. Blinding is done to reduce:

1. Confounding factor
2. Bias
3. Manipulation
4. Risk

Answer. 2. Bias

Question 153. Which is not a part of epidemiologic triad:

1. Host
2. Environment
3. Agent
4. PHC

Answer. 4. PHC

Question 154. The method of application of neutral sodium fluoride is called as:

1. Muhler’s technique
2. Knutson’s technique
3. Brudevold technique
4. Englader technique

Answer. 2. Knutson’s technique

Question 155. The training of school dental nurse extends over the period of:

1. Three years
2. Two years
3. Four years
4. One year

Answer. 2. Two years

Question 156. Trench method is which type of waste disposal:

1. Incineration
2. Composting
3. Sanitary landfill
4. Burial

Answer. 3. Sanitary landfill

Question 157. Kappa value of 0.6–0.8 means:

1. Total agreement
2. Good agreement
3. Substantial agreement
4. Moderate agreement

Answer. 3. Substantial agreement

Question 158. The study which was done in mental institution is:

1. Vipeholm study
2. Hopewood house study
3. Trista Da Cunha study
4. Turku sugar study

Answer. 1. Vipeholm study

Question 159. Loe and Silness gingival index is a:

1. Reversible index
2. Irreversible index
3. Disease index
4. Treatment index

Answer. 1. Reversible index

Question 160. The consumer protection act came into force in the year:

1. 1987
2. 1994
3. 1993
4. 1997

Answer. 1. 1987

Question 161. Lottery method is a type of:

1. Simple random sampling
2. Stratified sampling
3. Systematic sampling
4. Cluster sampling

Answer. 1. Simple random sampling

Question 162. Normal distribution curve is also called as:

1. Binominal
2. Poisson
3. Gaussian
4. None

Answer. 3. Gaussian

Question 163. Prophylactic odontotomy by:

1. Hyatt
2. Miller
3. Bodecker
4. Wilson

Answer. 1. Hyatt

Question 164. Ergonomics means:

1. Job related accidents
2. Health related to occupation
3. Fitting in job
4. None

Answer. 3. Fitting in job

Question 165. Correct relationship between prevalence (p), incidence (I), duration (D):

1. P = I × D
2. D = P × I
3. I = P × D
4. P = I/D

Answer. 1. P = I × D

Question 166. The scoring for periodontal index for mild gingivitis is:

1. 1
2. 2
3. 3
4. 6

Answer. 1. 1

Question 167. Who identified Colorado stains:

1. Dean
2. Churchill
3. G V Black
4. Fredrick McKay

Answer. 4. Fredrick McKay

Question 168. First ADA approved fluoride toothpaste in year:

1. 1960
2. 1968
3. 1964
4. 1954

Answer. 3. 1964

Question 169. Vipeholm study is used in:

1. Oral cancer
2. Caries
3. AIDS
4. Periodontitis

Answer. 2. Caries

Question 170. Prevalence of a disease is:

1. Rate
2. Ratio
3. Proportion
4. Deviation

Answer. 2. Ratio

Fill In The Blanks

Question 1. Dr …………… is the president of dental council of India.

Answer. Dibyendu Mazumdar

Question 2. No Tobacco day is celebrated in the world on ……………

Answer. 31st May

Question 3. Cohort study is an example of …………… epidemology.

Answer. Observational

Question 4. The percentage of acidulated Phosphate Fluoride is…………… %

Answer. 1.23%

Question 5. Sodium fluoride is stored in …………… bottles.

Answer. Plastic

Question 6. Nalgonda technique of defluouridation was developed at …………… Maharastra.

Answer. NEERI, Nagpur

Question 7. …………… smoking is usually done in coastal areas of south India which results in oral cancer.

Answer. Reverse

Question 8. Name the regional headquarter located in India……………

Answer. Regional Office for South-east Asia (ROSA).

Question 9. Oral hygiene day is celebrated in India on ……………

Answer. 1 August

Question 10. Who is the father of dentistry in India ……………

Answer. Dr Rafiuddin Ahmad

Question 11. What is the name of first book in dentistry……………

Answer. Artzney Buchlein: wider allerlei kranckeyten und gebrechen dertzeen Or Zene Artzney.

Question 12. Experimental epidemiology study is also called as……………

Answer. Trial

Question 13. CPITN stands for……………

Answer. Community Periodontal Index of Treatment Needs

Question 14. First dental college in India……………

Answer. Dr R Ahmad Dental College and Hospital, Kolkata

Question 15. Space between two central incisor is called as……………

Answer. Midline Diastema

Question 16. Dentist Act was passed in the year……………

Answer. 1948

Question 17. APF gel used in the concentration of……………

Answer. 1:23

Question 18. Example of a composite index is……………

Answer. Russel’s periodontal Index

Question 19. Maximum score for the OHI-S……………

Answer. 6

Question 20. The value of critical plaque pH……………

Answer. 5.5

Question 21. UNICEF full form is……………

Answer. United Nations International Children Emergency Fund

Question 22. Full form of CPITN is……………

Answer. Community Periodontal Index for Treatment Needs

Question 23. Full form of AIDS is……………

Answer. Acquired Immunodeficiency Syndrome

Question 24. Full form of IDA is……………

Answer. Indian Dental Association

Question 25. An example for reversible type of index is……………

Answer. Gingival index

Question 26. Full form of COPRA is……………

Answer. Consumer Protection Act

Question 27. Full form of WHO is……………

Answer. World Health Organisation

Question 28. World oral health day is celebrated on……………

Answer. It was celebrated on 12th September, but from 2013 it is celebrated on 20th March after a decision in Hong Kong and subsequent publication of a revised policy statement

Question 29. Markings on William’s graduated probe is……………

Answer. 1-2-3-5-7-8-9-10

Question 30. Full form of OHI-S is……………

Answer. Oral hygiene Index- Simplified

Question 31. If a screening test is positive and the individual did have the disease, it is termed as……………

Answer. True positive

Question 32. The term …………… is used to indicate all current cases (old and new) existing in a given population at a given point in time or over a period of time.

Answer. Prevalence

Question 33. The property of an index to measure, what it is intended to measure is called……………

Answer. Validity

Question 34. …………… is a strong social prohibition against words, objects, actions or discussions considered undesirable by a community.

Answer. Taboo

Question 35. Middle value of a series of a given data arranged in ascending or descending order is called……………

Answer. Median

Question 36. Screening for oral cancer is …………… level of prevention.

Answer. Secondary

Question 37. A bicationic chemical plaque control agent having a “pin cushion effect” is……………

Answer. Chlorhexidine

Question 38. ”Consumer Protection Act” became a law in the year……………

Answer. 15th April 1987

Question 39. …………… is a microorganism commonly associated with root surface caries.

Answer. Actinomyces viscosus

Question 40. Black band on a CPI probe is between …………… to…………… mm.

Answer. 3.5 to 5.5

Question 41. Preventive measures taken before the initiation of the disease is known as…………… prevention.

Answer. Primary

Question 42. Dental council of India is located at……………

Answer. New Delhi

Question 43. When the pictures are drawn in the presentation of data, it is known as……………

Answer. Pictogram

Question 44. The dental auxiliary who does oral prophylaxis and is registered in Register – B in India is……………

Answer. Dental Hygienist

Question 45. Reverse smoking is practiced in coastal areas of……………Pradesh.

Answer. Andhra

Question 46. World health day is celebrated on……………

Answer. 7th April

Question 47. The head office of Indian Dental Association is at……………

Answer. Mumbai

Question 48. Nalgonda technique of defluoridation was developed at NEERI in the…………… city.

Answer. Nagpur

Question 49. Epidemiological triad consists of…………… host and environment.

Answer. Agent

Question 50. Dentist’s Act of India has…………… chapters.

Answer. Five

Question 51. ………………… is the difference between maximum and minimum values.

Answer. Range

Question 52. Extracted tooth should be disposed in ………………colored bags.

Answer. Red

Question 53. Father of Modern epidemiology is……………………….

Answer. Dr. John Snow

Question 54. Alma Ata conference was held in …………………..year.

Answer. 1978

Question 55. Ottawa charter is the basis for health……………..

Answer. Promotion

Question 56. In Turku sugar study there was a reversal of caries in…………….. groups.

Answer. Xylitol

Question 57. Salt fluoridation was started in the city of………………

Answer. Switzerland

Question 58. ………………..was first artificially fluoridated on 25th January 1995.

Answer. Grand Rapids, Michigan

Question 59. ART was started by……………………..

Answer. Prof. Jo Frencken (1996) in South Africa

Question 60. …………………..first did prophylactic odontomy.

Answer. Hyatt (1936)

Question 61. Father of epidemiology is…………………

Answer. John Snow

Question 62. World health day is celebrated on…………………….

Answer. 7th April

Question 63. An example of cumulative index is……………………

Answer. DMFT index for dental caries

Question 64. Milk fluoridation was introduced by……………….

Answer. Ziegler

Question 65. First dental college in India was established on ……………….

Answer. 1926

Question 66. ……………………… is the Father of dental hygiene.

Answer. Dr. Alfred Civilion Fones

Question 67. ………………….is the prevention of the emergence of risk factors in countries or population groups in which they have not yet appeared.

Answer. Primordial prevention

Question 68. In…………………type of communication the flow of information in one way from sender to receiver.

Answer. One way

Question 69. COPRA came into force on…………………….

Answer. 15th April 1987

Question 70. The ‘def’ index was described by………………..

Answer. Grubbel in 1944

Question 71. No tobacco day is observed on………………………… of every year.

Answer. 31st May

Question 72. Soon after brushing the tooth surface, a salivary mucoprotein that form is called as………………….

Answer. Acquired pellicle

Question 73. Pulpotomy and root canal therapy form ………………………level of prevention.

Answer. Tertiary

Question 74. 1ppm means……………………..g per kilogram.

Answer. 0.001

Question 75. ……………………..is commonly used as surfactant in a dentifrice.

Answer. Sodium lauryl sulphate

Question 76. Bromocresol green is used as an indicator in …………………..test.

Answer. Snyder

Question 77. …………………………is a classic 10 year study done on institutional children, fed on Spartan diet in Australia.

Answer. Hopewood House Study

Question 78. ……………………….is the process of destroying all microbes including their spores.

Answer. Sterilization

Question 79. The black band on a CPI probe is from……………. to ………………….mm.

Answer. 3.5 to 5.5

Question 80. ………………….is a microorganism commonly associated with root surface caries.

Answer. Actinomyces viscosus

Question 81. To compare the height of males and females………………..test will be used.

Answer. Student’s t test

Question 82. …………………….is the number of death of infants under one month of age per 1,000 live births.

Answer. Infant mortality rate

Question 83. The first dental college of India was established in year……………………

Answer. 1920

Question 84. Combination of CO and hemoglobin forms……………………

Answer. Carboxyhemoglobin

Question 85. Loudness of sound is measured in………………….

Answer. decibel (dB)

Question 86. IAPHD stands for………………….

Answer. Indian Association of Public Health Dentistry

Question 87. Kids toothpaste should have………….ppm of fluoride

Answer. 1000

Question 88. ………………….discovered fluorine

Answer. Henri Moissan

Question 89. Root caries index was given by…………………….

Answer. Ralph V Katz (1949)

Question 90. First water fluoridation was launched on date………………….

Answer. 25th January 1945

Question 91. GOBI campaign is promoted by…………………..

Answer. UNICEF

Question 92. Oral hygiene day is celebrated on……………………..

Answer. 1st August

Question 93. National environmental engineering research Institute (NEERI) is located at………………

Answer. Nagpur

Question 94. Global monitoring age for dental caries is…………………….

Answer. 12 years

Question 95. Expand THETA………………

Answer. Teenage health education teaching assistants program

Question 96. Specific protection is……………….level of protection.

Answer. Primary

Question 97. The property of ‘Pin cushion effect’ is exhibited by………………….

Answer. Chlorhexidine

Question 98. A sudden occurrence of an infectious disease in a community at a particular time is called……………..

Answer. Epidemic

Question 99. ‘Matching’ is the characteristic of………………………..type of epidemiological study.

Answer. Case control

Question 100. ART is………………………….

Answer. Atraumatic restorative technique

Question 101. Most commonly employed sampling technique in national pathfinder survey is………………..

Answer. Random

Question 102. Histogram is a……………….

Answer. Pictorial diagram of frequency distribution

Question 103. Disinfecting agent most commonly used in water purification on large scale is………….

Answer. Chlorine

Question 104. Ancient Indian medicine is based on which theory………………

Answer. Theory of Pancha bhootas (five element theory)

Question 105. Component of epidemiological triad are…………………

Answer. Agent, host and environment

Question 106. Certainly lethal dose (CLD) of fluoride is………………

Answer. 32 to 64 mg of fluoride/kg body weight

Question 107. Recommended index ages and age group for pathfinder surveys are……………….

Answer. 5, 12, 15, 35–44 and 65–74 years

Question 108. Fones method of brushing is indicated for…………………..

Answer. Young children, physically handicapped children, patients who lack dexterity

Question 109. The Father of dentistry in India is…………………..

Answer. Dr. Rafiuddin Ahmed

Answer In A Sentence Or A Word

Question 1. Name any two dental Varnishes.
Answer. Duraphat and Fluor protector

Question 2. What is pincushion effect?
Answer. The dicationic chlorhexidine molecule, attaches to the pellicle by one cation, to the bacteria attempting to colonize the tooth surface with the other. This is called as pincushion effect.

Question 3. What are ADA specifications of a toothbrush?
Answer. Following are the ADA specifications of a toothbrush:

• 1-1.25 inches in length
• 5/16 to 3/8 inches in width
• 2 to 4 rows of bristles
• 5-12 tufts/row

Question 4. What is the scientific name of Vitamin E?
Answer. Tocopherol

Question 5. Principles of primary health care.
Answer. Following are the principles:

• Equitable distribution
• Community participation
• Intersectoral coordination
• Appropriate technology
• Focus on prevention

Question 6. Name any two controlled water fluoridation studies.
Answer. Grand Rapids-Muskegon Study and NewburghKingston study

Question 7. Stephan’s curve
Answer. Stephan showed that within 2 to 4 minutes of rinsing with a solution of glucose, plaque pH is reduced from about 6.5 to 5 and gradually returns to the original value within approximately 40 minutes. This is graphically plotted as ‘Stephan’s Curve’.

Question 8. What is Bias in case controlled studies?
Answer. Bias is any systemic error in the determination of the association between the exposure and disease. The possibility of bias must be considered when evaluating a possible cause and effect relationship.

Question 9. When is the Anti-Tobacco day celebrated?
Answer. 31st May

Question 10. What is primordial prevention in public health?
Answer. It is the prevention of the emergence or development of risk factors in countries or population groups in which they have not yet appeared. The main intervention is by individual and mass education.

Additional Information

Various Tests of Significance

Various Terminologies in Epidemiology

Rating System of Hierarchy of Evidence

Level 1: Systematic review or meta-analysis of all the relevant randomized controlled trials or evidence based clinical practice guidelines based on systematic reviews.

Level 2: At least one well designed randomized controlled trial.

Level 3: Well designed controlled trials without the randomization.

Level 4: Well designed case control or cohort study.

Level 5: Systematic review of descriptive and qualitative studies.

Level 6: A single descriptive or qualitative study.

Level 7: Opinion of authorities and/or reports of expert communities.

Various Indexes and Teeth Examined in Them

Various Types of Fluoridation Systems and Components Used in Them

Various Fluoridation Methods and their Reduction in Dental Caries

Levels of Fluoride and their Effects on Teeth

Doses of Fluoride

Normal Levels of Fluoride

History of Community Water Fluoridation

Various Countries with Percentage of Water Fluoridation

Various Cities Fluoridated Along with their Control Cities

Various Dyes and their Use

WHO Themes and their years

Various World Health Days of the Importance

Various Categories of Biomedical Waste in India

Color Coding and Various Containers used for Disposal of Biomedical Waste

Miller’s Classification of Tooth Mobility

Types of Evaluation Along with their Description

Various Carriers with their Examples

Goals of National Health Policy 2002 which are to be Achieved by 1st August 2011

Various Statistical Scales to Measure the Data

Following are the statistical scales to measure the data

Various scales in Detail with their Examples

Various Drinking Water Sources

Various Quartiles

Various Bias

Various categories of waste and color coded bags

Indian National Immunization Schedule

For pregnant ladies

• TT-1: Early in pregnancy
• TT-2: 4 weeks after TT-1
• TT booster: If received 2 TT doses in a pregnancy within last 3 years

For Infants

• At birth: BCG & OPV
• At 6 weeks: BCG if not given at birth DPT-1, OPV-1 and Hepatitis B-1
• At 10 weeks: DPT-2, OPV-2 and Hepatitis B-2
• At 14 weeks: DPT-3, OPV-3 and Hepatitis B-3
• At 9 months: Measles, Vitamin A (1 lakh IU)

At 16 to 24 months

• Measles-2
• DPV and OPV boosters
• Japanese encephalitis
• Vitamin A (then one dosage every 6 months upto the age of 15 years

At 5 to 6 years

• DPT booster
• Vitamin A

At 10 and 16 years

Tetanus toxoid. Second dose should be given at interval of one month Indian Academy of Pediatrics recommends inclusion of more vaccines in immunization schedule

• Hib conjugate: 6, 10 and 14 weeks
• MMR: 15 months
• Typhoid: 2, 5, 8 and 12 years

Demographic Cycle of a Nation

Degrees of Supervision of Auxiliaries by ADA 1975

Types of Association

Types of Need for Dental Care

Recommended Dosage Levels of Supplemental Fluoride