Upon visual inspection, the screw has fractured with only small particles remaining stuck inside the implant.The remaining portion of the screw remains attached to the restorative component.The internal hex of the implant has been stripped.A white residue remained on the external surface of the screw, indicative of patient contact.The device history record review did not provide any indication of a manufacturing deviation that would contribute to this event.A definitive root cause has not been determined.(b)(4).
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