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WorksheetsPHD
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
The recommended level of fluoride in drinking water for temperate climate zone is
a)
2ppm
b)
1.5ppm
c)
1ppm
d)
0.5ppm
2.
Primary prevention includes
a)
Pulp Capping
b)
Speech Therapy
c)
Supervised brushing Programe
d)
Chemotherapy
3.
All are measures of central tendency except
a)
Median
b)
Mode
c)
Standard deviation
d)
Mean
4.
The following is abrasive in dentifrice
a)
Soduim lauryl sulphate
b)
Calcium carbonate
c)
Agar
d)
Cellulose
5.
Best age (years) for application of pit and fissure sealants is
a)
10-16yrs
b)
6-12 yrs
c)
4-7 yrs
d)
2-5yrs
6.
Natural source of radiation of air is
a)
X-ray
b)
Radio-isotopes
c)
CT Scan
d)
Cosmic rays
7.
Which of the following factors are necessary for dental caries?
a)
Host
b)
Sugar
c)
Bacteria
d)
All of the above
8.
The Snyder test primarily measures
a)
Number of acidogenic bacteria
b)
Volume of saliva produced
c)
pH of saliva
d)
Speed and volume of acid
9.
The first step in planning is
a)
Survey pf problem
b)
Analyzing of program
c)
Appraisal of program
d)
Evaluation
10.
Dental health education is concerned with
a)
Treatment
b)
Preventive
c)
Interception
d)
Rehabilitation
11.
Epidemiological triad includes
a)
Host
b)
Agent
c)
Environment
d)
All of the above
12.
Acidulated phosphate fluoride contains
a)
0.9% F ion
b)
1.23%F ion
c)
1.5% F ion
d)
2% F ion
13.
Systemic factors which pre-dispose the periodontal tissues to infection are-
a)
Diabetes
b)
Nutritional imbalances
c)
Para-thyroidism
d)
All of the above
14.
Principles of health education include
a)
Interest
b)
Participation
c)
Reinforcement
d)
All of the above
15.
Sample is
a)
Part of Population
b)
A Particular part of population
c)
A representative part of population
d)
Whole population
16.
Tooth surface more prone to caries
a)
Pits and fissures
b)
Lingual surface
c)
Proximal surface
d)
All of the above
17.
Analytical epidemiology includes
a)
Case contol study
b)
Cohort study
c)
None of the above
d)
Both a and b
18.
Concentration of chlorhexidine used in mouthwash is
a)
0.002
b)
0.02
c)
2.0E-4
d)
0.01
19.
Extracted tooth is disposed in
a)
Red bin
b)
Green bin
c)
Yellow bin
d)
Black bin
20.
The first water fluoridation was carried out in
a)
1945
b)
1947
c)
1949
d)
1951
21.
Method of application of “Naf ” solution is known as
a)
Mullhers technique
b)
Knutson's technique
c)
Brudevold's technique
d)
Nalgonda technique
22.
Concept that views health as absence of disease
a)
Biomedical concept
b)
Ecological concept
c)
Psychological concept
d)
Holistic concept
23.
First artificial watch fluoridation was done in
a)
1946
b)
1945
c)
1942
d)
1948
24.
Pit and fissure sealant are part of
a)
Primodial prevention
b)
Primary prevention
c)
Secondary prevention
d)
Tertiary prevention
25.
Control city for grand rapids artificial water fluoridation was
a)
Kingston
b)
Oak Park
c)
Muskegon
d)
New burgh
26.
Loss of study individuals during follow up in a cohort study.
a)
Erosion
b)
Abrasion
c)
Evaluation
d)
Attrition
27.
Identify the caries promoting trace element
a)
Selenium
b)
Fluorine
c)
Phosphorus
d)
Molybdenum
28.
Identify the human interventional study on diet and dental caries
a)
Vipeholm study
b)
Hope wood house study
c)
Tristan da cunha study
d)
World war II studies
29.
Identify the sampling technique employed in national pathfinder surveys
a)
Simple random sampling
b)
Stratified cluster sampling
c)
Systematic random sampling
d)
Quota sampling
30.
Which is not a WHO Index Age Group?
a)
5yr
b)
12yr
c)
35-44yrs
d)
45-64yrs
31.
Bilaterally symmetrical opaque paper white areas over the premolars and molars , especially over the cusp tips is most probably
a)
Localized enamel hypoplasia
b)
Acute fluoride toxicity
c)
Skeletal fluorsis
d)
Dental fluorosis
32.
Restorative material used for Atraumatic restorative technique is
a)
Composite material
b)
Silver amalgam
c)
Glass ionomer cement
d)
Atraumatic resorative material
33.
Which one of the following is NOT a chemical plaque control agent?
a)
Listerine
b)
Chlorhexidine
c)
Bisbiguanides
d)
Quinine
34.
Oral cancer is most commonly seen in
a)
2nd decade of life
b)
5th and 6th decade of life
c)
3rd decade of life
d)
8th decade of life
35.
A symposium is
a)
A planned oral presentation made by one qualified person in a class room
b)
A form of lecture where two people present discussion between themselves in front of an audience
c)
Number of speakers participate and present different aspects about a particular topic
d)
Small group discussion consisting of 8-10members
36.
.Oral cancer can be prevented by
a)
Biopsy
b)
Early Screening
c)
Surgery
d)
Chemotherapy
37.
Which of the following index can be used to assess the treatment needs
a)
DMF
b)
CPITN
c)
PDI
d)
OHI-S
38.
How much pressure is applied by the probe in CPITN INDEX?
a)
10gms
b)
25gms
c)
35gms
d)
45gms
39.
Case control study is a part of
a)
Descriptive Epidemiology
b)
Analytical Epidemology
c)
Experimental Epideiology
d)
Not Related
40.
Which of the following is a parametric test?
a)
Chi-Square test
b)
t-test
c)
Mann-Whitney test
d)
Kruskal-Wallis test
41.
The formation of vital layer is known as
a)
Straining
b)
Hardening
c)
Ripening
d)
Scraping
42.
The process of restriction of movement of healthy individuals who come in contact with diseased persons is called as
a)
Isolation
b)
Quarantine
c)
Active surveillance
d)
None
43.
Pilot study is done to:
a)
Find the feasibility in conducting study
b)
Determine the sample size
c)
Find the unknown effect
d)
All of the above
44.
The constant presence of a disease within a given geographic area without importation from outside is referred as
a)
Epidemic
b)
Pademic
c)
Exotic
d)
Endemic
45.
Slow sand filter is otherwise known as:
a)
Mechanical filters
b)
Berkefeld filters
c)
Katadyn filters
d)
Biological filters
46.
The fourth dimension of health according to WHO is
a)
Physical dimension
b)
Mental dimension
c)
Social dimension
d)
Spiritual dimension
47.
Concepts of health
a)
Germ theory
b)
Holistic approach
c)
Epidemiological Theory
d)
Web of causation
48.
Normal curve is also called as
a)
Gaussian distribution
b)
Line diagram
c)
Frequency polygon
d)
Frequency curve
49.
DAI is index for
a)
Caries
b)
Malocclusion
c)
Gingivitis
d)
Periodontal diseases
50.
Which among the following in NOT used for household purification of water?
a)
Perchloron
b)
Chlorine tablets
c)
Iodine
d)
Ozonation
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