Saturday, June 16, 2007
Preventing Rotary File Separation
Anyone using rotary files will occasionally have a file separation. Here are a few tips to prevent rotary file separation.
1. Always create a glide path for the rotary file to follow. I like to use a #10 and #15 hand file
2. Ensure straight line access to prevent coronal stress on the rotary instrument.
3. Use a light touch with your rotary file. Don’t force them to cut.
4. Use a touch-retract motion. Don’t lean on the file.
5. Don’t rush the instrumentation. You know when you are doing that!
6. Watch for signs of any problems. Listen for clicking. Examine your files continuously. If you
see any signs of fatigue, chuck the file.
7. Replace your files sooner.
8. Practice - operator skill is a major factor in preventing separation.
For an extensive review on the prevention and management rotary file separation see:
Journal of Endodontics, Nov. 2006, 32:11, pp 1031-1043.