Reducing tinnitus may be a side effect of treating sleep apnea and/or snoring with oral appliances. The study “Systematic assessment of the impact of oral appliance therapy on the temporomandibular joint during treatment of obstructive sleep apnea: long-term evaluation” The study found that seven out of nine patients wearing an oral appliance to treat sleep apnea had improvments in tinnitus. Patient also showed improvements of other TMD symptoms. THERE HAVE BEEN PREVIOUS REPORTS OF CPAP THERAPY CAUSING TINNITUS.

The authors concluded that “long-term usage of an OA does not cause impairment to the temporomandibular joint”

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