AAPD QE Review Sample Test UPDATED ACTUAL Questions
and CORRECT Answers
How do plaques from caries-active subjects and caries- b. In the caries-active plaques, pH levels of 5.0 or lower may persist for several
free subjects compare? hours after sugar exposure.
a. Caries-free plaques have significantly higher
proportions of Mutans Strep
b. In the caries-active plaques, pH levels of 5.0 or lower
may persist for several hours after sugar exposure.
c. Non-cariogenic plaques per unit of plaque protein are
slightly more acidogenic than cariogenic plaques.
d. Streptococcus salivarius of only the caries-active
plaques readily convert sucrose to lactic acid at pH 5
2. Which of the following appears to be important d. Streptococcus sobrinus
primarily in smooth-surface decay?
a. Actinobacillus actinomycetemcomitans
b. Lactobacillus species
c. Streptococcus sanguis
d. Streptococcus sobrinus
3. Critical pH for dissolution of enamel has been shown c. 5.5.
to be about:
a. 5.0.
b. 5.2.
c. 5.5.
d. 5.7.
4. Epidemiologic evidence suggests which permanent d. Occlusal
tooth surface is most prone to caries?
a. Buccal
b. Interproximal
c. Lingual
d. Occlusal
5. Which best describes the transmission of Mutans d. Vertical
streptococci from primary caregiver to child?
a. Diagonal
b. Horizontal
c. Tangential
d. Vertical
6. Which drug is known to induce gingival hyperplasia? b. Cyclosporine
a. Azathioprine
b. Cyclosporine
c. Diazepam
d. Methotrexate
,7. Under the 2017 classification scheme for periodontal d. severity and complexity.
and peri-implant diseases and conditions, stages of
periodontal disease are based upon:
a. age at onset and chronicity.
b. anticipated treatment response.
c. risk of rapid progression.
d. severity and complexity.
8. The primary parameter to define gingivitis cases is: a. bleeding on probing
a. bleeding on probing.
b. erythema.
c. loss of stippling.
d. visible plaque.
9. Early-onset periodontitis patients having high c. IgG
concentrations of which antibody have significantly less
attachment loss than patients who lack this antibody?
a. IgA
b. IgE
c. IgG
d. IgM
10. Which type of vaccine is the human papilloma virus c. Recombinant
vaccine?
a. Inactivated
b. Live-attenuated
c. Recombinant
d. Toxoid
11. Innate immunity differs from other types of immune c. its presence in all individuals at all times.
responses due to:
a. inability to discriminate between a group of related
pathogens.
b. increase with repeated exposure to a given pathogen.
c. its presence in all individuals at all times.
d. mediation by clonal selection of antigen-specific
lymphocytes
12. Acquired immune responses depend upon: b. lymphocytes.
a. granulocytes.
b. lymphocytes.
c. macrophages.
d. polymorphonuclear leukocytes.
13. Opsonization is a process in which antibodies c. coating the surface of a pathogen to enhance phagocytosis.
contribute to immunity through:
a. activating the proteins of the complement system.
b. binding to and neutralizing the pathogen to prevent
cell entry.
c. coating the surface of a pathogen to enhance
phagocytosis.
d. lysing microorganisms directly by forming pores in
their membranes.
, 14. Which of the following is a primary organ of the a. Bone marrow
immune system?
a. Bone marrow
b. Lymph nodes
c. Mucosa
d. Spleen
15. Presence of a positive odds ratio indicates: b. a particular exposure is associated with higher odds of the outcome.
a. a particular exposure does not affect the odds of the
outcome.
b. a particular exposure is associated with higher odds of
the outcome.
c. a particular exposure is associated with lower odds of
the outcome.
d. an association between exposure and outcome is
statistically significant.
16. Which of the following reflects expectations for c. CPG are informed by a systematic review of evidence.
clinical practice guidelines (CPG)?
a. CPG are based upon a consensus of expert opinions.
b. CPG are designed to produce minimal standards of
care.
c. CPG are informed by a systematic review of evidence.
d. Deviations should be fairly rare and often cannot be
justified.
17. When biological variables are distributed in a bell d. 70
shaped curve, approximately what percentage of the
population lies within one standard deviation of the
mean?
a. 25
b. 35
c. 50
d. 70
18. What epidemiologic term refers to the extent to which c. Internal validity?
a study is free from bias?
a. Blind allocation of subjects
b. External validity
c. Internal validity
d. Precision
19. The researcher's ability to offer each study participant c. Randomized clinical trial
an equal chance of being assigned to any study group is
unique to which study design?
a. Prospective cohort study
b. Prospective case control study
c. Randomized clinical trial
d. Retrospective case control study
and CORRECT Answers
How do plaques from caries-active subjects and caries- b. In the caries-active plaques, pH levels of 5.0 or lower may persist for several
free subjects compare? hours after sugar exposure.
a. Caries-free plaques have significantly higher
proportions of Mutans Strep
b. In the caries-active plaques, pH levels of 5.0 or lower
may persist for several hours after sugar exposure.
c. Non-cariogenic plaques per unit of plaque protein are
slightly more acidogenic than cariogenic plaques.
d. Streptococcus salivarius of only the caries-active
plaques readily convert sucrose to lactic acid at pH 5
2. Which of the following appears to be important d. Streptococcus sobrinus
primarily in smooth-surface decay?
a. Actinobacillus actinomycetemcomitans
b. Lactobacillus species
c. Streptococcus sanguis
d. Streptococcus sobrinus
3. Critical pH for dissolution of enamel has been shown c. 5.5.
to be about:
a. 5.0.
b. 5.2.
c. 5.5.
d. 5.7.
4. Epidemiologic evidence suggests which permanent d. Occlusal
tooth surface is most prone to caries?
a. Buccal
b. Interproximal
c. Lingual
d. Occlusal
5. Which best describes the transmission of Mutans d. Vertical
streptococci from primary caregiver to child?
a. Diagonal
b. Horizontal
c. Tangential
d. Vertical
6. Which drug is known to induce gingival hyperplasia? b. Cyclosporine
a. Azathioprine
b. Cyclosporine
c. Diazepam
d. Methotrexate
,7. Under the 2017 classification scheme for periodontal d. severity and complexity.
and peri-implant diseases and conditions, stages of
periodontal disease are based upon:
a. age at onset and chronicity.
b. anticipated treatment response.
c. risk of rapid progression.
d. severity and complexity.
8. The primary parameter to define gingivitis cases is: a. bleeding on probing
a. bleeding on probing.
b. erythema.
c. loss of stippling.
d. visible plaque.
9. Early-onset periodontitis patients having high c. IgG
concentrations of which antibody have significantly less
attachment loss than patients who lack this antibody?
a. IgA
b. IgE
c. IgG
d. IgM
10. Which type of vaccine is the human papilloma virus c. Recombinant
vaccine?
a. Inactivated
b. Live-attenuated
c. Recombinant
d. Toxoid
11. Innate immunity differs from other types of immune c. its presence in all individuals at all times.
responses due to:
a. inability to discriminate between a group of related
pathogens.
b. increase with repeated exposure to a given pathogen.
c. its presence in all individuals at all times.
d. mediation by clonal selection of antigen-specific
lymphocytes
12. Acquired immune responses depend upon: b. lymphocytes.
a. granulocytes.
b. lymphocytes.
c. macrophages.
d. polymorphonuclear leukocytes.
13. Opsonization is a process in which antibodies c. coating the surface of a pathogen to enhance phagocytosis.
contribute to immunity through:
a. activating the proteins of the complement system.
b. binding to and neutralizing the pathogen to prevent
cell entry.
c. coating the surface of a pathogen to enhance
phagocytosis.
d. lysing microorganisms directly by forming pores in
their membranes.
, 14. Which of the following is a primary organ of the a. Bone marrow
immune system?
a. Bone marrow
b. Lymph nodes
c. Mucosa
d. Spleen
15. Presence of a positive odds ratio indicates: b. a particular exposure is associated with higher odds of the outcome.
a. a particular exposure does not affect the odds of the
outcome.
b. a particular exposure is associated with higher odds of
the outcome.
c. a particular exposure is associated with lower odds of
the outcome.
d. an association between exposure and outcome is
statistically significant.
16. Which of the following reflects expectations for c. CPG are informed by a systematic review of evidence.
clinical practice guidelines (CPG)?
a. CPG are based upon a consensus of expert opinions.
b. CPG are designed to produce minimal standards of
care.
c. CPG are informed by a systematic review of evidence.
d. Deviations should be fairly rare and often cannot be
justified.
17. When biological variables are distributed in a bell d. 70
shaped curve, approximately what percentage of the
population lies within one standard deviation of the
mean?
a. 25
b. 35
c. 50
d. 70
18. What epidemiologic term refers to the extent to which c. Internal validity?
a study is free from bias?
a. Blind allocation of subjects
b. External validity
c. Internal validity
d. Precision
19. The researcher's ability to offer each study participant c. Randomized clinical trial
an equal chance of being assigned to any study group is
unique to which study design?
a. Prospective cohort study
b. Prospective case control study
c. Randomized clinical trial
d. Retrospective case control study
