•Crushing, fracturing or roughening heavy calculus for gross removal
•Facilitate removal of “burnished” calculus
•Deep, relatively narrow pockets where length/curve of curette blade will not fit
•Palatals of maxillary anteriors, facials off mandibular anteriors
•Mesial and distal concavities of mandibular molars or cuspids
•Direct buccal or lingual of molar roots or premolars
•Smooth rough CEJ’s
•Root planing using “finishing files” (in your issue)
•challenging in deep areas
•Smoothing amalgam restoration margins or removing overhangs