445. A patient is congenitally missing the maxillary lateral incisors and mandibular second premolars. This individual is said to have the condition known as:

 

A.           anodontia

B.           oligodontia

C.           hypodontia

D.           hyperdontia 

444.Which of the following has highest modulus of elasticity

a.Dentin
b.Enamel
c.Amalgam
d.Composite resin






Ans-b.Enamel

443.In a cobalt chromium alloy the metal responsible for corrosion resistance is

a.Silver
b.Nickel
c.Cobalt
D.Chromium


Ans-d.Chromium