It was reported that the patient had a reaction to the astron clear splint.The patient has a medical history of arthritis, hypertension and "sinus issues" and is allergic to monocryl sutures, and hydrocodone.The patient does not have a history of xerostomia.The patient first used the device on (b)(6) 2021 and noticed "sores" around the mouth.The patient discontinued using the device and the reaction lasted 3-4 days.There was no medical treatment required.The patient will try and use the device once more.
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The device investigation has been completed and the results are as follows: dhr results: dhr not applicable.Device is fabricated per physician's prescription only.Stock product reviewed results no stock product was available for review since the device was fabricated per physician's prescription only.Investigation methods/results complaint investigator reviewed the returned device.An upper tray was returned in the original case.The results were summarized: roughness - the flange was smooth.Occlusal surface had significant bur marks and was rough.Crack - no major crack was found.Delamination - layers were intact and did not separate.Discoloration - the device was clear and transparent.General cleanliness - the returned device was not clean and debris can be observed.Case was returned in a good condition with label.The returned device was visually inspected, and no defect or abnormality was observed.There was no evidence found to indicate that the reported issue was caused by the device itself.Root cause: a root cause for this complaint cannot be explicitly determined.Ifu 012579 rev 1.0 (clearsplint instruction for use) states "brush and floss before using clearsplint.After use, rinse the bite splint with water and store dry.Clean bite splint with soap and warm water only." ifu 012579 provides warning "do not clean or soak in mouthwash; do not use denture cleanser; do not place do not place the clearsplint in hot or boiling water or expose to excessive heat (such as direct sunlight).This may distort the appliance; do not use alcohol or hydrogen peroxide." however, the customer did not provide the information regarding how the patient handled and maintained the device.Per rpt 012574 rev.1.0 (clearsplint biocompatibility report), 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.
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