Impression materials mcqs

Q.  All of the following statements about Type II silicon impression material are true EXCEPT_______________?

a. They evolve hydrogen when cast if they are not fully cured
b. They exhibit a very low setting shrinkage
c. They have a lower tear resistance than polysulphide rubbers
d. They set by condensation polymerisation


ANSWER: See Answer
 
No explanation is available for this question!
 

    Discussion

Post your comment / Share knowledge