MAUDE Adverse Event Report: KAVO DENTAL GMBH GENTLEPOWER LUX CONTRA ANGLE 25LPR; DENTAL HANDPIECE

Model Number 25 LPR

Device Problems Overheating of Device (1437); Dent in Material (2526)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 12/12/2023

Event Type  malfunction  

Event Description

During a restorative treatment to teeth #28 - #30 the patient jumped in the chair and complained about pain due to heat.The handpiece was very hot, and patient's lip was red on the area where the handpiece was touching the lower lip left side.The area did not blister, hence no injury and no medical care necessary.

Manufacturer Narrative

During a visual inspection prior to the repair, it was found that the head was dented in several places around the push button and around the water spray insert.This shows that the instrument received strong external hits, e.G., due to dropping.During the test run the heat up was reproducible.After disassembling it was found that the bearings have been worn out running rough.This caused unusual inner friction and hence heat up of the back cap.To avoid such issues the user instruction contains already several notes, warnings and requests how to prepare the handpiece for each treatment and how to use it: warning: hazards for the care provider and the patient.In the case of damage, irregular running noise, excessive vibration, untypical warming or when the cutter or grinder cannot be held.Do not use further and notify service.Caution: burning hazard from hot instrument head or hot instruments cover.If the instrument overheats, burns may arise in the oral area.Never contact soft tissue with the instrument head or instrument cover the following guidelines must be observed to ensure save use of the electrically driven contra-angle handpieces: the service instructions for contra-angle handpieces must be precisely following when using kavo spray or quattrocare care systems.Before each use, the contra-angle handpiece must be checked for external damage.Before each use, perform a test run with the contra-angle handpiece, and watch for atypical heating and unusual noise and vibration.Immediately stop using contra-angle handpieces that act unusual.Never press the push button during operation.This also includes lifting the cheek or tongue! to ensure proper function, the medical device must be set up according to the reprocessing methods described in the kavo instructions for use, and the care products and care systems described therein must be used.Kavo recommends specifying a service interval at the dental office for a licensed shop to clean, service and check the functioning of the medical device.This service interval depends on the frequency of use and should be adjusted accordingly.Service may only be carried out by kavo-trained repair shops using original kavo replacement parts.

• Brand Name: GENTLEPOWER LUX CONTRA ANGLE 25LPR
• Type of Device: DENTAL HANDPIECE
• Manufacturer (Section D): KAVO DENTAL GMBH; bismarckring 39; biberach / riss, 88400 ; GM 88400
• Manufacturer (Section G): KAVO DENTAL GMBH; bismarckring 39; biberach / riss, 88400 ; GM 88400
• Manufacturer Contact: klaus reisenauer ; bismarckring 39; biberach / riss, 88400 ; GM 88400
• MDR Report Key: 18604250
• MDR Text Key: 334177379
• Report Number: 3003637274-2024-00003
• Device Sequence Number: 1
• Product Code: EGS
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K073478
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional,User Facility
• Reporter Occupation: Dentist
• Type of Report: Initial
• Report Date: 01/23/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 01/30/2024
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: 25 LPR
• Device Catalogue Number: 1.007.3580
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 01/11/2024
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 01/11/2024
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 07/11/2013
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Reuse
• Patient Sequence Number: 1