Practice Test Questions Flashcards
There is a periodontal pocket present with 5 mm of attacment loss. Probe depth is 4 mm. Where is the gingival margin?
1 mm apical to CEJ
What bacteria are regularly associated with localized aggressive periodontitis?
A.a
Which of the following is an early colonizer?
1) C. rectus
2) P. gingivalis
3) S. sanguins
4) T. denticola
5) A.a
S. sanguins
What is an example of passive defensive mechanism?
Shedding of epithelium
What is not a virulence factor of P. gingivalis?
1) Hemolytic
2) Asaccharolytic
3) Spore Forming
4) Nomotile
Spore forming
Which is an amino acid secreted only by bacteria?
fMet-Leu-Phe
Cytokines are low molecular weight?
Proteins
Which is part of the oxidative response to PMNs?
Myeloperoxidase
Which is characteristic of non-specific plaque hypothesis?
Plaque removal required for periodontal health
Which is the specific response where antibodies are produced?
Adaptive/ acquired immnity
Supporting structures of teeth originate from?
Dental follicle
What is the purpose of circular gingival fibers?
Support free gingiva
What is a key occurance in an early lesion?
Basal cells of JE and SE proliferate
Junctional epithelium is made by…?
Reduced dental epithelium and oral epithelium
What is a characteristic of the transition from an established to an advanced lesion?
Apical migration of JE (not bone loss)
What is characteristic of the transition from early to established lesion?
Pocket epithelium
What does complement not do?
Prevent epithelial destruction
What are gingipains?
Cysteine proteinases
All of the following provide support for the relationship between genetics and periodontitis except:
Bacterial genome
IL-8 stimulates_____;a key response in______
PMN chemotaxis; acute inflammation
Which is not a characteristic of gram-positive bacteria?
Lipopolysaccharide
1) Supragingival calculus is found opposite salivary ducts
2) Needs to be removed for its plaque-retentive nature.
Both true
A.a and P. gingivalis ability to invade epithelial cells is an example of:
Evasion of host defenses
Which cytokine is secreted by TH2?
1) IL-1
2) IL-4
3) IL-8
4) Interferon
IL-4
Which of the following is incorrect about defensins?
1) They can’t distinguish between commensal and pathogenic bacteria
2) They are secreted by both immune cells and non-immune cells
3) They are proteins
4) They use pattern recognition to distinguish commensal and pathogenic bacteria
They use pattern recognition to distinguish commensal and pathogenic bacteria
ICAMs are expressed by:
Endothelial cells
1) Diabetes causes an increase in the incidence of disease related bacteria.
2) Diabetes causes an increase in collagen synthesis and a decrease in collagen breakdown.
First statement true
Second statement false
