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EndoCowboy® File Retrieval

Precise troughing enabled successful file removal using the EndoCowboy®.
This real clinical case demonstrates how careful troughing can open the path to a fractured file, allowing controlled and safe retrieval.

Pre-OP X-Ray

Pre-operative X-ray showing a separated rotary file in the root canal of tooth 27.

Exposing the file by troughing

Placing the lasso

Post-OP X-Ray

Final X-ray shows a fully patent and preserved canal, ready for complete cleaning and obturation.

Troughing

Advantages of Sonic Troughing over Ultra Sonic

(ISO 25 EndoClean Tip)

More Efficient:
Creates space faster and safer around the separated file.

Less Heat Generation:
Sonic energy produces less heat and lowers the risk of tissue damage.

Minimally Invasive:
Smaller tip size allows a narrower trough and preserves more dentin.

Rounds File Edges:
Higher amplitude gently rounds the sharp cutting edges of the separated file, preventing lasso wire damage.

Lower Risk of Second Fracture:
Reduced energy transfer minimizes stress on the separated instrument.

Catch and
Release

Sonic activation troughing was used to expose the coronal part of the fragment, allowing placement of the lasso around the file and creating sufficient space for retrieval.

A 0.1 mm EndoCowboy® Lasso was successfully placed, allowing safe and controlled retrieval of the separated instrument.

File retrieval is one of the most challenging treatments in endodontics, and with the wrong tools, it can quickly become frustrating and unpredictable. I designed the EndoCowboy to change that by giving clinicians a high-precision instrument with interchangeable lasso tips in various sizes, allowing them to match the tool to the specific clinical situation. The system features a bendable yet stable cannula, ultra-strong low-elongation wire, and a ball-bearing tensioning mechanism that provides clear tactile feedback for controlled and confident loop placement. Every aspect of the design was developed to increase the chances of success while preserving the natural anatomy of the root canal. It’s incredibly rewarding to see the system now being used so successfully by specialists around the world. It feels like the design has truly met its purpose.

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