Periodontal and hygiene instruments are used daily in every dental practice. Understanding the difference between dental scalers and curettes, and between universal and Gracey curettes, helps clinicians work efficiently and helps distributors stock the right range.
Scalers vs curettes
- Sickle scalers: pointed tip and triangular cross-section, with two cutting edges. Used for removing supragingival calculus. Examples include H6/H7, 204S and Jacquette patterns.
- Curettes: rounded toe and semicircular cross-section, safe for subgingival use in periodontal pockets without damaging soft tissue.
Universal curettes
Universal curettes, such as Columbia 4R/4L, Barnhart and McCall patterns, have two cutting edges and a face at 90 degrees to the shank. One instrument can be adapted to most tooth surfaces, making them versatile and economical.
Gracey curettes
Gracey curettes are area-specific. Each has one cutting edge, with the face offset at about 70 degrees to the lower shank, designed for particular teeth and surfaces:
- Gracey 1/2 and 3/4: anterior teeth
- Gracey 5/6: anterior teeth and premolars
- Gracey 7/8 and 9/10: posterior facial and lingual surfaces
- Gracey 11/12: posterior mesial surfaces
- Gracey 13/14: posterior distal surfaces
- Gracey 15/16 and 17/18: modified patterns for mesial and distal posterior access
Variants such as After Five (longer terminal shank for deeper pockets) and Mini Five (shorter blade for narrow pockets) extend their reach.

Handles and ergonomics
Hollow, lightweight handles with wide diameters and textured grips reduce hand fatigue. Colour coding helps identify patterns quickly during treatment.
Sharpening and care
Dull instruments burnish calculus instead of removing it. Sharpen regularly with a stone, maintaining the original blade angle, and replace instruments once blades become too thin. See our sterilisation guide.
Pak Line Industries manufactures sickle scalers, universal and Gracey curettes, probes, explorers and complete periodontal kits in Sialkot. Browse dental instruments.
FAQs
Which Gracey curette is used for posterior teeth?
Gracey 7/8 and 9/10 are used on posterior facial and lingual surfaces, 11/12 on mesial surfaces and 13/14 on distal surfaces.
Can sickle scalers be used below the gumline?
They are generally not recommended subgingivally because their pointed tips can damage soft tissue; curettes are used instead.
Source instruments direct from the manufacturer
Pak Line Industries has manufactured surgical, dental and beauty instruments in Sialkot, Pakistan since 1985. ISO 13485 & CE quality, OEM and private label, exported to 55 countries.

