Validation of a Simplified MATRx Plus

The MATRx plus device is a feedback-controlled mandibular positioner that uses data collected during sleep to control movement of the mandible in real-time using a mandibular positioner. The test provides a prediction of the individual's response to oral appliance therapy; i.e., if the individual can treat his or her obstructive sleep apnea using a mandibular advancing oral appliance. For individuals predicted to respond to the therapy, the test also provides a mandibular position at which the appliance will be effective.