MAUDE Adverse Event Report: LARES RESEARCH SMOOTHDRIVE; CONTRA ANGLE HANDPIECE

Model Number	1:5 CA
Medical Device Problem Code	Temperature Problem (3022)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/29/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The device was evaluated at the factory.There was significant debris and corrosion in the head and head cap of the device.Poor lubrication and flushing caused a buildup of debris and bearing failure which resulted in the device getting hot during operation.
Event or Problem Description
Per the customer's email regarding device sent to lares for repair the device got hot during a procedure.

• Brand Name: SMOOTHDRIVE
• Common Device Name: CONTRA ANGLE HANDPIECE
• Manufacturer (Section D): LARES RESEARCH; 295 lockheed avenue; chico CA 95973
• Manufacturer (Section G): LARES RESEARCH; 295 lockheed avenue; chico CA 95973
• Manufacturer Contact: bruce holderbein ; 295 lockheed avenue; chico, CA 95973 ; 5303451767
• MDR Report Key: 23999551
• Report Number: 2916440-2026-00001
• Device Sequence Number: 18769079
• Product Code: EGS
• UDI-Device Identifier: D950135020
• UDI-Public: D950135020
• Combination Product (Y/N): N
• Initial Reporter State: AZ
• Initial Reporter Country: US
• PMA/510(K) Number: K220874
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Dentist
• Remedial Action: Repair
• Type of Report: Initial
• Report Date (Section B): 01/07/2026

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
• Operator of Device: Health Professional
• Device Model Number: 1:5 CA
• Device Catalogue Number: 13502
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 12/29/2025
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 12/29/2025
• Initial Report FDA Received Date: 01/07/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 06/27/2024
• Is the Device Labeled for Single Use? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Sex: Unknown