There are certain instruments that just earn their place in your hand. For me, the LM Dual Gracey Syntette is one of them. By combining the functions of traditional Gracey 11/12 and 13/14 curettes in one instrument, it allows me to treat both mesial and distal surfaces without constantly changing instruments. I get the area-specific access and precision I want, with fewer instrument changes throughout the day.
That matters more than it might seem at first. In hygiene, we talk a lot about precision through Gracey curettes, but we do not always talk enough about the little movements that happen over and over again while we are trying to stay precise.
The part nobody thinks about
On paper, it sounds minor: pick up one instrument, put it down, grab another, flip, rotate, reposition, and keep going. But when that cycle repeats all day, it becomes part of the physical load of the job. Research has made it abundantly clear that musculoskeletal disorders are highly prevalent among dental professionals, which is why small ergonomic improvements are worth paying attention to.
A study on the ergonomics of manual instruments for dental hygiene also notes that upper-limb musculoskeletal disorders are very common among dental hygienists and that instrument selection is an important part of reducing that risk.
How is the LM Dual Gracey Syntette different from traditional Gracey curettes?
What makes the LM Dual Gracey Syntette different, and why I reach for it so often, is that it provides the ease of movement from mesial to distal, but without sacrificing area specific precision.
This is thanks to the unique design giving each working end two elliptical cutting edges. These cutting edges are off-set to 70 degrees like a single sided Gracey, but on both sides of the blade. This allows for treatment of both mesial and distal tooth surfaces with the same instrument end.
So rather than picking up a Gracey 13/14 for distal and then switching to an 11/12 for mesial, I can stay with one instrument and simply rotate it to move between those surfaces. I am not giving up adaptation or precision; I am just removing the need to constantly switch instruments to achieve it.
The same concept carries into the anterior and premolar areas. The Anterior Dual Gracey Syntette is described as a combination of the Gracey 1/2 and Gracey 7/8 curettes for all tooth surfaces in the anterior and premolar areas. It mirrors the capabilities of the Dual-Gracey Syntette but has a straighter terminal shank that is more adaptive to the anterior region.
Mini versions make it even better
I also appreciate that both the Dual-Gracey Syntette and Anterior Dual-Gracey Syntette are available in mini models, which makes it easier to build a more comprehensive area-specific setup with fewer instruments. The mini versions provide longer terminal shanks and smaller, slimmer blades for superior access in deep narrow pockets, and for the more complex anatomy that becomes exposed with alveolar bone loss. Note in the images below the precise adaptation of each instrument. You can see that the mini versions provide even greater access and precision.
For practices that are thinking about space, workflow, or instrument budgets, that versatility can make a real difference
Why it matters in real life
This is one of those instruments that supports a smoother, more sustainable way to practice. It is not just about saving time. It is about reducing unnecessary movement, simplifying workflow, and still maintaining the level of precision patients need.
That balance is not always easy to find in instrumentation, which is why the LM Syntettes have become such valued tools in clinical practice. They offer the efficiency of fewer instrument changes while still preserving the area-specific design that makes Gracey instrumentation so effective.
How to use:
Watch Syntette Video | Watch Anterior Syntette Video
Stainless Steel Options:
Dual Gracey Syntette (Standard)
Dual Gracey Syntette (Mini)
Dual Gracey Anterior Syntette (Standard, Mini) Coming Soon!
Sharpen-Free Options:
Dual Gracey Syntette (Standard)
Dual Gracey Syntette (Mini)
Dual Gracey Anterior Syntette (Standard)
Dual Gracey Anterior Syntette (Mini)
Frequently Asked Questions
Why is a Syntette more versatile than traditional Gracey curettes?
The LM Syntette is more versatile because it maintains the area-specific precision and adaptation of a Gracey curette while reducing the need to switch instruments between mesial and distal surfaces. Rather than alternating between instruments such as a Gracey 11/12 and 13/14, the clinician can rotate the Syntette to access both surfaces using the same working end.
This can streamline instrumentation, reduce repeated instrument exchanges, and simplify the clinical setup. Because the Syntette combines aspects of universal and Gracey curettes, a Syntette and Anterior Syntette can potentially replace a more extensive set of traditional Graceys and reduce reliance on universal curettes, creating more room in the cassette or clinician kit without sacrificing area-specific access.
How is the Syntette like a Gracey curette?
Like a traditional Gracey curette, the Syntette has an offset blade designed to support precise adaptation during scaling. Its cutting-edge design is set at approximately 70 degrees to the terminal shank, helping clinicians maintain the area-specific positioning associated with Gracey instrumentation.
The distinctive feature is that the Syntette has two elliptical cutting edges, one for mesial and one for distal surfaces, on opposite sides of the blade. This provides the versatility typically associated with a universal curette while retaining the shank design and precise adaptation clinicians value in a Gracey.
When should I choose a Mini Syntette instead of a standard Syntette?
A Mini Syntette may be especially useful when access is limited by deep, narrow periodontal pockets, root concavities, furcations, more complex root anatomy exposed by alveolar bone loss, or thin tissue. Its smaller, slimmer working end and longer terminal shank can improve access and adaptation in these challenging areas.
The standard Syntette remains a versatile choice for routine instrumentation of molars, while the mini version offers an added access advantage when precise adaptation is difficult. The same principals apply to the Mini Anterior Syntette when instrumenting the premolars and anteriors
References:
1) Migliario M, Franchignoni M, Soldati L, Melle A, Carcieri P, Ferriero G. Analisi ergonomica del manico di strumenti manuali per igiene dentale [Ergonomic analysis of the handle of manual instruments for dental hygiene]. G Ital Med Lav Ergon. 2012 Apr-Jun;34(2):202-6. Italian. PMID: 22888731.
2) Căminișteanu F, Vorovenci A, Perieanu VȘ, Petri SA, Burlibașa L, David M, Drăguș AC, Burlibașa M. Occupational diseases among dental personnel: a scoping review. J Med Life. 2025 Jun;18(6):526-535. doi: 10.25122/jml-2024-0412. PMID: 40757105; PMCID: PMC12314851.
Written by: Beth Parkes, RDH, BSc,
Manager of Clinical Affairs
beth@curion.ca