Results: The complaints or merits after scaling were examined as followings as bleeding complaint was 3.51±1.29 points, hyper-sensation of the tooth was 3.74±1.26 points, tooth crack or fracture as 2.68±1.18 points, abrasion as 4.02±1.15 points, possible for eating hot and hard foods as 3.20±1.32 points, early detect of caries as 2.17± 0.92, points, chance for consultation about implant or denture as 3.22±1.19,, possible for drinking acidic beverage as 3.20±1.32,points , possible for finding enamel hypoplasia as 2.20±1.23, points and possible for removal of filling or prosthodontic materials as 2.88±1.30 points. The evaluation of dental hygienist for the hand instrument manage skill is revealed as 4.11±1.10 points for supra-gingival calculus removal, 2.51±1.29 points for sub-gingival calculus removal, 4.17±0.95 points for using 1~2 mm lateral surface of scaler blade, 2.77±1.23 points for using the back surface of the scaler blade, 2.60±1.11 points for start scaling after demonstration with the tip guide. 3.22±1.35 points for grasping scaler slightly and insert it around the tooth as like as probe use, 3.14±1.37 points for vertical movement with slow motion of the tip along the long axis of the tooth on sub-gingival area, 2.88±1.34 points for using scaler tip with slight pumping touch at the tooth surface, 3.48±1.33 points for moving the blade vertically with inserting it on col area and 2.94±1.34 points for put the scaler tip locate beside the proximal area of the neighbor tooth on scaling at proximal area.

Conclusion: The abrasion or hypersensitivity were the big complaints from patients on scaling and dental hygienists were evaluated as high score in such item of scaling skills as supra-gingival calculus removal and using 1~2 mm on lateral surface of scaler blade, but got the least score in such item on sub-gingival calculus removal.

Keywords: Dental Scaling; control dental; dental hygienist; pain; dental calculus

Abstract| Introduction| Subjects and Method| Result| Discussion| Conclusion| Acknowledgements| Conflict of Interest| References|