MAUDE Adverse Event Report: PRISMATIK DENTALCRAFT, INC. SOFT NIGHT GUARD; THERMOFORM MOUTHGUARD

Device Problems Adverse Event Without Identified Device or Use Problem (2993); Insufficient Information (3190)

Patient Problem Hypersensitivity/Allergic reaction (1907)

Event Type  Injury  

Manufacturer Narrative

The device has not been returned.If/when the device is returned an investigation will be carried out and a supplemental report will be submitted.The exception of serial number as the device is manufactured by prescription.The device is manufactured by prescription and not implantable.

Event Description

It was reported that the patient experienced a reaction to the soft night guard.The type of allergic reaction noted was a burning sensation to the tongue.The reaction started on 6-23 and wore it half way through the night into 6-24.The duration of the event lasted 6 days, however the patient was still having discomfort.The provider advised to stop usage of appliance.The office was advised patient is "having a chemical burn" and seen by urgent care.

Manufacturer Narrative

The device has not been returned.However, the non-visual device investigation has been completed and the results are as follows: dhr results: the dhr was reviewed and there was no evidence discovered to indicate that a product defect or non-conformity contributed to the issue.Lot number was not provided - supplier (erkodent) could not review the associated material lot.Stock product reviewed results: no stock product was available for review since the device was fabricated per physician's prescription only.Investigation methods/results: customer stated the device has been returned but to date has not been received.However, the non-visual device investigation has been completed.Root cause: a root cause for this complaint cannot be explicitly determined.Ifu 9091 rev 3.0 (comfort h/s bite splint instruction for use) states to use only clear, cool water to wash the device.Ifu provides warning "do not clean or soak in mouthwash; do not use denture cleanser, hot water, alcohol, hydrogen peroxide; do not place in direct sunlight".It is possible that reactions could be caused by mouthwash, toothpaste, or soaking material.However, the customer did not provide the information regarding how the patient handled and maintained the device.Supplier erkodent reviewed the incident details and determined an allergic reaction would be possible if the device was built-up with acrylic.Glidewell research team and namsa conducted a series of testing on a similar thermoformed sleep device following iso 10993 (biological evaluation of medical devices) and the device was evaluated for potential cytotoxicity, skin irritation, delayed dermal contact sensitization and oral mucosal irritation.The test article was thermoformed with layers of erkodent material (erkoloc-pro and erkodur).The test results were listed below and summarized in biocompatibility report for sleep device (rpt 9733 rev 1.0).· for cytotoxicity testing, the test article extract showed no evidence of causing cell lysis or toxicity.· for skin irritation, there was no erythema and no edema observed on the skin of the animals treated with the test article.· for sensitization testing, the test article extracts showed no evidence of causing delayed dermal contact sensitization.· the test article showed nonirritant to the oral mucosa as compared to the control article.The device materials have been found to be biocompatible through the testing.There was no cytotoxic, sensitization, skin irritation, or oral mucosal irritation found in any of the test articles.

• Brand Name: SOFT NIGHT GUARD
• Type of Device: THERMOFORM MOUTHGUARD
• Manufacturer (Section D): PRISMATIK DENTALCRAFT, INC.; 2144 michelson dr.; irvine CA 92612
• Manufacturer (Section G): PRISMATIK DENTALCRAFT, INC.; 2144 michelson drive; irvine CA 92612
• Manufacturer Contact: herbert crane ; 2144 michelson drive; irvine, CA 92612 ; 9495021907
• MDR Report Key: 12217507
• MDR Text Key: 263155294
• Report Number: 3011649314-2021-00250
• Device Sequence Number: 1
• Product Code: MQC
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K121365
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional
• Reporter Occupation: Dentist
• Type of Report: Initial,Followup
• Report Date: 01/17/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 07/23/2021
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Lay User/Patient
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 12/17/2021
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 05/28/2021
• 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
• Patient Outcome(s): Required Intervention
• Patient Sex: Female