Model Number PRECISION TORQUE PUSH BUTTON |
Device Problem
Migration or Expulsion of Device (1395)
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Patient Problem
Tooth Fracture (2428)
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Event Date 04/11/2017 |
Event Type
malfunction
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Manufacturer Narrative
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Visual examination of returned product confirmed a round carbide bur secured in the handpiece and was bent at approximately 60 degree angle to its axis.Exposed bur shank surfaces showed signs of clamping deformation (flat spots).Functionally the when the button was depressed the bur would not release.Turbine assembly was removed from the handpiece and a tool was applied to the turbine to increase the applied force on the chuck.The chuck taper released with the applied force and the bur was extracted from the spindle.Bur shank marks were indicative of bur slipping in the chuck (at least one full rotation) and raised material prevented bur removal by hand.
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Event Description
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The handpiece made a really loud noise and the operator noticed the crown had broken so they had to do an extraction and implant.No medical attention was required, patient was fine.
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Search Alerts/Recalls
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