1-2 Used for removal of supragingival calculus on all tooth surfaces and edge of the gum.
3-4 Used for the removal of supragingival and subgingival calculus in specific areas of the mouth.
5-6 Used for removal of subgingival calculus on incisors and premolars.
7-8 Used to remove soft and hard deposits along the buccal and lingual surfaces of posterior teeth.
9-10 Used for removal of supragingival and subgingival calculus in specific areas of the mouth.
11-12 Used for removal of subgingival calculus in specific areas of the mouth.
13-14 Used for removal of subgingival calculus on molar and premolar distal surfaces.
15-16 Used for subgingival debridement of distal surfaces of upper and lower premolars and molars.
17-18 Used for the removal of deep subgingival calculus. For molars' distal surfaces.