Improving the Efficiency of the Digital Sleep Workflow Using MATRx Plus

The MATRx plus is a home-based test that allows the healthcare provider to determine if a patient with obstructive sleep apnea will benefit from oral appliance therapy. Prior to the test, a dentist fits the patient with dental trays and measures the patient's comfortable jaw range of motion. The trays are connected to a mandibular positioner. During sleep, the device collects airflow from a nasal cannula and blood oxygen saturation from a pulse oximeter. These signals are used by the device software to control the mandibular positioner and protrude the mandible. During the test, the device moves the lower jaw within the patient's range of motion to predict if the patient is likely to benefit from oral appliance therapy and, if so, the appropriate amount of protrusion. Additional study nights may be required if the data from either of the first two nights are insufficient or if a more precise determination of the amount of jaw protrusion that provided a therapeutic benefit can be made.