There has been a previous report received where this malfunction resulted in a serious injury.Therefore, it must be presumed that recurrence of this malfunction could possibly cause or contribute to a serious injury or require medical or surgical intervention to preclude such.As such, this event is reportable per 21cfr part 803.The filecould not be held by the contra angle, this is a known failure mode that can be resulted from various causes the number of reuse of the instrument, the experience of the dentist, an issue with the contra angle/motor, or a defect in the instrument.Should this trend increase these events will be reported immediately.
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