A Posterior Sickle Is Effective in Removing Moderate Calculus Deposits

A posterior sickle is effective in removing moderate calculus deposits from the coronal surfaces of premolars and molars. A posterior sickle is a double-ended instrument that can be used on the facial, lingual, mesial, and distal surfaces of the crowns of posterior teeth.

A) Both statements are TRUE
B) The first statement is TRUE; the second FALSE
C) The first statement is FALSE; the second TRUE
D) Both statements are FALSE