Root canal preparation has long been associated with lengthy instrument sequences and repeated decision-making at the chairside. Each additional file introduces another change of instrument, another judgement call, and another opportunity for procedural drift. For busy clinicians, the cumulative effect is a workflow that can feel more complicated than the case in front of them warrants.

A four-file flow

COLTENE has addressed this head on with the HyFlex EDM OGSF Sequence. It is designed as a four-file system with progression that simply makes sense – the acronym represents the order of use: Opener file, Glidepath file, Shaping file and Finishing file. Each instrument has an assigned function, and the sequence guides the clinician through the key stages of canal preparation with an extremely minimised toolset. The learning curve associated with endodontics is also reduced when using the sequence due to the removal of open-ended workflow guesswork.

The sequence progression

  • The Orifice Opener prepares the canal entrance and establishes improved coronal access.
  • The Glidepath file then creates a reproducible glide path up to working length.
  • The Shaping and Finishing files complete preparation over the full canal length.

With tip sizes and tapers meticulously matched across the sequence, the shift from one instrument to the next is very smooth. Establishing a glide path before shaping is well understood as a safeguard in canal preparation, and hence, building that step into the sequence itself means it is never skipped under time pressure.

Confidence in more demanding canals

Of course, a shorter sequence is only worthwhile if it is clinically sustained. The HyFlex EDM OGSF files offer just that – produced using Electric Discharge Machining, which gives the nickel-titanium instruments a distinctive surface and high resistance to fracture.

Dr Balraj Sekhon, principal dentist at Circle Dental Care in Trafford and Heaton Moor Dental in Stockport, explains that in his experience, “clinically, the HyFlex OGSF sequence provides a streamlined and controlled approach to canal preparation. The system allowed efficient progression through the canal while maintaining tactile feedback, particularly in the context of narrow anatomy. The combination of glide path establishment followed by shaping supported a consistent workflow.”

Seeking flexibility

A Controlled Memory heat treatment allows the files to be pre-shaped before use for maximum flexibility.

Dr Sekhon reinforces the importance of this flexibility. He explains that “the HyFlex EDM files offer exceptional flexibility, allowing you to negotiate canals with greater safety and adapt to varying case difficulty without compromising on control or efficiency.”

This level of flexibility is crucial, especially in narrow or curved canals, where maintaining the original anatomy while progressing to working length is a crucial challenge.

Discussing a premolar case completed to a 25/.04 taper, Dr Sekhon notes that “the EDM system gives you the versatility to broaden your treatment options in practice, while the reliable instrumentation and smooth progression make for a consistently predictable result.” He continues that “the simplicity of the sequence reduces unnecessary steps while maintaining control, supporting efficiency in general practice. Instrumentation remained stable throughout, with smooth progression and maintenance of canal anatomy.”

A considered answer to a common problem

For practices looking to simplify their endodontic instrumentation workflow without sacrificing performance, the HyFlex EDM OGSF Sequence is the perfect solution. It keeps the process straightforward for both clinician and patient, delivering consistent preparation through a streamlined, well-structured workflow.

The HyFlex EDM OGSF Sequence is available now in 21 mm and 25 mm lengths, learn more today.

For more information, visit https://colteneuk.com/HyFlex-EDM email info.uk@coltene.com or call 0800 254 5115.

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