457.Coup-de -sabre appearance is seen in

a.Scleroderma

b.SLE

c.Rhinoscleroma

d.Solar elastosis

Ans-a.Scleroderma

456.Zollinger Ellison syndrome is characterized by

a.Hypoglycemia

b.Recurrent peptic ulcerations

c.Diarrhoea

d.Intestinal obstruction

Ans-b.Recurrent peptic ulcerations

455.Recommended etching time for primary teeth

a.15-30 seconds

b.30-60 seconds

c.60-90 seconds

d.90-120 seconds

Ans-60 -90 seconds