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Quiz: Basic Periodontology

1

Which group of gingival fibers are present even in case of extreme periodontal bone loss?

Choose an answer
Gingivodental
Circular
Transgingival
Transseptal

The periodontal disease extension from gingival to the underlying bone involves inflammatory destruction of gingival and transseptal fibers, breaking down into disorganized granular fragments interspersed in edema along with inflammatory cells. However, transseptal fibers constantly recreate across the crest of the interdental septum.
2

Histiocytes are

Choose an answer
Peripheral dendritic cells
Dermal dendrocytes
Monocytes
Lymphocytes

Dermal dendrocytes (Histiocytes) are collagen associated dendritic cells of myeloid origin. They are found near blood vessels. They possess receptors for complement C3a and also express MHC class II molecules. 
3

Cervical enamel projections are most prevalent in

Choose an answer
Maxillary and mandibular 1st molars
Maxillary and mandibular 3rd molars
Maxillary 1st and mandibular 2nd premolars
Maxillary and mandibular 2nd molars
4

Histologic depth of the gingival sulcus

Choose an answer
1.5 mm
0.69 mm
1.8 mm
2.07 mm
5

Turnover rate of cells is highest in

Choose an answer
Junctional epithelium
Gingiva
Tongue
Sulcular epithelium

Palate, tongue and cheek have a turnover rate of 5 to 6 days, gingiva – 10 to 12 days and junctional epithelium – 1 to 6 days.

0

Divakar Remigius


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