a. 10 pounds. b. 15 pounds.
c. 20 pounds. d. 25 pounds.
Ans. B.
A force of 15 pounds in considered optimal and is well within the physiologic limits of the tooth. Forces of magnitude 3.75 pounds are recommended for condenser nibs of 0.5 mm diameter, 8.43 pounds for 0.75 mm diameter and 15 pounds for 1mm diameter nibs.
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