Abstract: A point of care device that uses a forced oscillation technique (FOT) and a three dimensional dental device. The point of care device measures the pressure and flow of tidal breathing and reports the results in real time. If the subject's upper airway resistance is high or out of the norm, simply adjust the subject's mandible to see if resistance can be reduced. If it can be reduced by a certain percentage, this will determine if an oral appliance will work for a subject, if that location is comfortable for long term compliance and what the exact location needs to be.