Multiple Choice Questions(MCQ’S)
- Department of Periodontology
A) CLASSIFICATION OF DISEASES AND CONDITIONS AFFECTING THE
PERIODONTIUM
1. Tooth brush trauma resulting in gingival
recession is considered to be:
a)Facticious
b)Iatrogenic
c)Accidental
d)Physiological
2. The causative agent for histoplasmosis is:
a)Bacteria
b)Virus
c)Fungi
d)Protozoa
3. One of the unique features of the most recent
gingival disease classification of AAP 1999 is:
a)Allergic conditions
b)Foreign body reactions
c)Non plaque induced traumatic gingival lesions
d)Gingivitis associated with endocrinal disorders
4. Pyogenic granuloma is associated with:
a) Puberty
b) Pregnancy
c) Oral contraceptive
d) Menopause
5. Mucocutaneous lesions having gingival
manifestations include all of the following
except:
a) Lichen Planus
b) Pemphigoid
c) Erythema Multiforme
d) Linear Gingival Erythema
6. During gingival inflammation chronic lesions
produced by lip, oral and tongue piercing can
lead to:
a) Gingival erosion
b) Gingival recession
c) Gingival ulceration
d) Gingival sloughing
B) GINGIVAL INFLAMMATION
7.During inflammation the gingival fibroblasts
are stabilized by:
a) IL-1α
b) IL-1β
c) IL-4
d) IL-6
8. In gingivitis early lesion evolves from the
initial lesion within:
a) 2 days
b) 7 days
c) 14 days
d) 21 days
9. In gingival inflammation 70% of the collagen
is destroyed in:
a) Stage 1
b) Stage 2
c) Stage 3
d) Stage 4
10.During gingival inflammation fibroblasts
show cytotoxic alterations in:
a) Initial lesion
b) Early lesion
c) Established lesion
d) Advanced lesion
11. Which of the following is not seen in initial
lesion of gingivitis:
a) PMN’S
b) Erythema
c) Vascular dilation
d) Increased GCF flow
12. Transmigrating leukocytes reach their
maximum after the onset of clinical gingivitis
within:
a) 6-12 days
b) 14-21 days
c) 2-4 days
d) More than 21 days
13. Within 7 days of inflammation the MMP’s
responsible for extracellular matrix
remodeling is:
a) MMP-1
b) MMP-2
c) MMP-7
d) MMP-12
14. Bluish red gingiva is observed in which stage
of gingivitis:
a) 1
b) 2
c) 3
d) 4
15. Inverse relation between number of intact
collagen fibers and number of inflammatory
cells appears in which stage of gingivitis:
a) Stage-1
b) Stage-2
c) Stage-3
d) Stage-4
16.Neutral mucopolysacchride levels in
chronically inflammed gingiva:
a) Increases
b) Decreases
c) Remains constant
d) Non- detectable
17. During gingival inflammation perivascular
loss of collagen is seen in:
a) Initial lesion
b) Early lesion
c) Established lesion
d) Advanced lesion
18. The junctional epithelium may begin to show
development of rete pegs in which stage of
gingivitis:
a) Stage-1
b) Stage-2
c) Stage-3
d) Stage-4
19. In established lesion of gingivitis the
predominant cells are:
a) Plasma cells
b) PMN’s
c) Lymphocytes
d) Macrophages
C) CLINICAL FEATURES OF CHRONIC GINGIVITIS
20. Diffuse gingivitis affects the :
a) Gingival margin
b) Attached gingiva
c) Interdental papilla
d) All of the above
21. During gingival bleeding the occurrence of
MMP-9 expression peaks after:
a) 5 days
b) 14 days
c) 21 days
d) More than 21 days
22. Gingival bleeding in absence of gingival
inflammation occurs due to:
a) Food impaction
b) Biting on solid foods
c) Sharp pieces of hard food
d) Flossing
23. Heavy metal producing bluish- red linear
pigmentation on gingiva is :
a) Lead
b) Mercury
c) Bismuth
d) Arsenic
24. In gingiva melanin pigmentation is absent or
severely diminished in :
a) Albinism
b) Albright syndrome
c) Pemphigoid
d) Xanthomatous disease
25.Which of the following exogenous factor
increases the melanin pigmentation
in gingiva :
a) Coal
b) Tobacco
c) Metal dust
a) Coloring agents
26. In animal studies the mechanical stimulation
by brushing increases the proliferative activity
of basal cells of junctional epithelium as
compared to scalers by :
a) 1.5 fold
b) 2.5 fold
c) 3.5 fold
d) 4.5 fold
27. Diffuse puffiness and softening appears in :
a) Acute gingivitis
b) Subacute gingivitis
c) Recurrent gingivitis
d) Chronic gingivitis
28. Smooth surfaced texture is observed in :
a) Desquamative gingivitis
b) Atrophic gingivitis
c) Hyperkeratosis
d) Fibrotic gingiva
29. The incidence of recession after age of 50
years is :
a) 25%
b) 50%
c) 75%
d) 100%
30. Stillman clefts are gingival changes related to
:
a) Texture
b) Consistency
c) Contour
d) Position