Correct Answer:- Option-B
Question58:-Which of the following is not true regarding retention of posts ?
A:-Threaded posts are 6 to 8 times more retentive than smooth posts
B:-Parallel sided posts are 2-3 times more retentive than tapered ones
C:-Diameter of posts between 0.06 to 0.65" drastically increases retention
D:-Greater the ratio between crown and root portion, the greater will be the retention
Correct Answer:- Option-D
Question59:-Statements regarding creep in....
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