The drill's burr guard did not hold the burr.During the procedure, the doctor noted: "tissues were cleared between first and second molar region and preparation was made to perform osteotomy cuts.There was a technical dysfunction with the drill.A new drill had to be called for." there was no impact to the patient as there was a back-up sterile drill that was available for immediate use.Manufacturer response for micropower oral max high speed drill.Detachable lever, linvatec dental drill (per site reporter): repaired unit.
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