468.The sulcular epethilium acts as a semipermeable membrane through which

a.Bacterial products pass into the gingiva.
b.Fluids from the gingiva seep into the sulcus.
c.Both of the above.
d.None of the above.


Ans-c. Both of the above
Ref-Caranza 9 th ed pg 23

467.Etiology of multiple neurofibromatosis is

a.Genetic
b.Viral
c.Injury
d.Endocrine


Ans-a.Genetic

Reference-Shafer's 5th ed pg 280

466.Keratocanthoma most commonly occurs on

a.Lips
b.Buccal mocosa
c.Gingiva
d.Palate

Ans-a.Lips