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This report is being submitted to relay additional information and device evaluation.The following sections are being reported: h6: component code was added: 4755.H6: tyoe of investigation codes were added: 4109, 4110, 4111 and 3331.H6: investigation findings code was added: 213.H6: investigation conclusions code was added: 4310 and 4315.A imp tm 6.0mm mtx, 10mm (tmm6b10) was returned for investigation.Visual inspection of the as returned product identified worn markings due to usage and from the removal process.No damage that caused or contributed to the event.The returned device was measured with a caliper cal1334 (due: sep 12, 2021) and verified to match dhr drawing.Functional testing to recreate the reported event could not be performed due to the nature of the device and event.No pre-existing conditions were noted on the complaint.The reported device was located on tooth # 31 and length of usage is unknown.Pictures or x-ray images were not provided.Dhr review was completed for the subject lot number (1227979).It was confirmed that all operations and inspections were executed as per applicable procedure.No deviations or non-conformances, which could have caused or contributed to the reported event was noted as part of the dhr.Lot was inspected and passed all acceptance criteria by qa.Complaint history review was performed for the reported lot number (1227979) for similar event and no other complaint was identified.Sterilization record (op150) was reviewed and verified to have passed all sterilization activities with no issues or nonconformities identified.May post market trending was reviewed and there were no actionable events or corrective actions for the reported event or device.A definitive root cause could not be identified.However, based on the investigation and risk file review, the most likely cause determined from the investigation is implant material rejection; allergies, sensitivity, improper patient selection criteria (i.E.Poor bone quality), improper loading.No further investigation and no immediate capa/hhe/d escalation is required, as the complaint investigation did not confirm the product was nonconforming at the time of distribution, and no new failure mode, harm, or hazardous situation was identified through the investigation performed.Based on the available information, device malfunction did not occur and the reported event was non-verifiable.
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