?Any part of the root face that has undercut or trapped slag or any area with more than ____ buildup can be ground down.

A. ?1/32 in. (0.8 mm)
B. ?1/16 in. (1.6 mm)
C. ?3/32 in. (2.4 mm)
D. ?1/8 in. (3 mm)


Answer: B

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