Oral maxillo facial surgeon was using the drill in the patient's oral cavity when he realized the drill had touched the patient's inner lip mucosa and caused a small burn.The external lip was not burned by contact with the drill.Hydrocortisone cream 1% was applied to the area immediately and no further treatment was needed by the patient (potential for harm to the patient).The omfs said that he felt the drill heating up in his hand.He had called for a new drill to be brought into the room; the burn occurred about a minute later.Bio-medical engineering sequestered the drill and preliminary review was that the bearings in the attachment were grinding together.When the drill was removed from the field, a good amount of black oily substance was leaking out of the attachment.The hand piece appeared ok, just a bit warm.
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