Question48:-Contact dermatitis is an example of
A:-Type | hypersensitivity
B:-Type II hypersensitivity
C:-Type Ill hypersensitivity
D:-Type IV hypersensitivity
Correct Answer:- Option-D
Question49:-Which of the following is a non suppurative complication of Streptococcus pyogenes ?
A:-Quinsy
B:-Otitis media
C:-Ludwig's angina
D:-Acute glomerulonephritis
Correct Answer:- Option-D
Question50:-All of the following regarding candida infection is true except
A:-Shows true hyphae on examination with potassium hydroxide
B:-Predisposing factors include diabetes mellitus, use of broad spectrum antibiotics
C:-Germ tube test is positive for Candida albicans
D:-Amphotericin B is used in disseminated candidosis
Correct Answer:- Option-A
Question51:-Which of the following statement is incorrect ?
A:-Sound coalescence of development lobes results in grooves and faulty coalescence results in fissures
B:-The dentino enamel junction is a hypomineralized zone of about 10 ym thick
C:-Enamel spindles are odontoblastic processes which cross the DE] into enamel
D:-Gnarled enamel is not subject to cleavage as is regular enamel
Correct Answer:- Option-B
Question52:-The average diameter of dentinal tubules at DE)
A:-0.5 to 0.9 um
B:-2 to 3 um
C:-10 to 14 um
D:-0.005 to 0.01 um
Correct Answer:- Option-A
Question53:-Which of the following statement is correct ?
A:-Dentin is less mineralised than cementum or bone
B:-Hardness of dentin near pulp is about three times greater than near DE)
C:-Tertiary dentin is formed by tertiary odontoblasts
D:-Tensile strength of dentin is 40 MPa
Correct Answer:-Question Cancelled
Question54:-The average pulp space volume in permanent adult human teeth is
A:-0.024 ml
1.2 ml
C:-0.0012 ml
D:-2.4 ml
Correct Answer:- Option-A
Question55:-Reparative dentin formation rate
A:-4 to 8 um/day
B:-1.5 um/day
-0.05 um/day
D:-0.4 um/day
Correct Answer:- Option-B
Question56:-Porosity of silica containing investments is more in all of the following conditions except
A:-Heterogeneous size and shape of refractory silica particles
B:-Greater refractory silica percentage in the investment
:-Higher water : powder ratio of the original investment mix
D:-Greater mold wall thickness
Correct Answer:- Option-A
Question57:-The thickness of gold foil is

A:-0.01 to 0.07 mm
.001 to 0.007 mm
C:-1 to4 mm

D:-5 to 75 um