MAUDE Adverse Event Report: MAILLEFER INSTRUMENTS HOLDING SARL K-FILE M-ACCESS 21MM 020; FILE, PULP CANAL, ENDODONTIC

Catalog Number	A12MA02102012
Medical Device Problem Code	Break (1069)
Health Effect - Clinical Codes	Insufficient Information (4580); No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	10/09/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
As a result of this malfunction, the potential for surgical intervention exists to preclude permanent damage to a body structure or permanent impairment of a body function as evidenced by previous reported events with similar files.This event, therefore, is reportable per 21cfr part 803.The device was not returned for evaluation.However, the lot number was provided and retained-product testing and/or dhr review are planned.The results will be submitted as they become available.
Event or Problem Description
In this event it is reported that a k-file m-access 21mm 020 file broke during use.The broken part was retrieved by microscope and ultrasound.Patient outcome is unknown as of this mdr.Further information requested.
Additional Manufacturer Narrative
Investigation summary: involved product that broke during use was not returned and cannot be analyzed.Moreover, no unused file is available for evaluation.Nothing unusual to report was found during dhr review (batch #1884380).Root causes are not identified.We will track this kind of event and monitor the trend.Potential root causes may be incorrect technique (hand used file - technique no more verifiable to date), overuse (number of uses not communicated), excessive wear, patient condition and behavior during treatment or material issue (no analysis of the broken fragments possible).In addition, there are further circumstances on the conditions in dentistry (used disinfectants, training/knowledge status), or any other environmental conditions, which are unknown to us and may also have an impact on the reported failure mode.Additional information: we received the following information regarding this complaint: 1.The patient was not injured and did not require treatment.It was the doctor's excessive force during the operation that caused the instrument to separate.2.The product has been discarded and cannot be returned.This is to correct and remove the codes that were initially reported - removing codes for: health effect - clinical code - 4580 health effect - impact code - 4648 the correct codes for this complaint are: health effect - clinical code - 4582 health effect - impact code - 2199 this is a follow up report to correct this code.

• Brand Name: K-FILE M-ACCESS 21MM 020
• Common Device Name: FILE, PULP CANAL, ENDODONTIC
• Manufacturer (Section D): MAILLEFER INSTRUMENTS HOLDING SARL; ch. du verger 3; ballaigues vaud CH-13 38; SZ CH-1338
• Manufacturer (Section G): MAILLEFER INSTRUMENTS HOLDING SARL; ch. du verger 3; ballaigues vaud CH-13 38; SZ CH-1338
• Manufacturer Contact: dan eagar ; 221 west philadelphia st.; york, PA 17401 ; 7178457511
• MDR Report Key: 23541885
• Report Number: 8031010-2025-00200
• Device Sequence Number: 9609901
• Product Code: EKS
• UDI-Device Identifier: J003A12MA021020121
• UDI-Public: J003A12MA021020121
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional
• Initial Reporter Occupation: Dentist
• Type of Report: Initial,Followup
• Report Date (Section B): 11/25/2025

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Catalogue Number: A12MA02102012
• Device Lot Number: 1884380
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Distributor Facility Aware Date: 10/31/2025
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 10/31/2025
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 11/13/2025
• Supplement Report FDA Received Date: 11/25/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Usage of Device: A
• Patient Sequence Number: 1
• Patient Sex: Unknown