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To reduce nighttime snoring and mild to moderate sleep apnea in adults.

The mmRNA appliance is an intraoral device used for treating snoring and mild to moderate sleep apnea. It consists of either an upper tray, lower tray, or both, and is designed to open the airway during sleep. The device is customized to each patient and features an adjustment mechanism (expansion screw) to allow it to be further customized to each patient. The device is identical to the already-marketed mRNA appliance except the top and bottom trays interlock using the Herbst telescoping hinge instead of the mRNA flange. It is used in the predicate SomnoMed® device as well as many other devices in the market, e.g. Oasys Sleep (K181571) reference and Oasys Oral/Nasal Airway system (K030440). The mechanism of action is mandibular advancement, the same mechanism of action is used in the primary predicate device.