A Clinician Is Having Difficulty Keeping the Lower Shank Parallel

Multiple Choice

A clinician is having difficulty keeping the lower shank parallel to the long axis of tooth #3. The clinician is using a Gracey 13/14 curet with a miniature working end and an extended lower shank. Which of the following would MOST LIKELY improve access in this distolingual surface?

A) Switch to an advanced fulcrum
B) Use a straight, slim-diameter ultrasonic tip
C) Use a universal curet with an extended shank
D) Use a rigid Gracey curet instead