Determine the patient’s maxi-mum protrusion and then reduce to 60-70%, i.e. 10 mm Maximum Protrusion…Set Bite 6-7mm forward as comfortable. Incisal opening should be at least 5mm for upper and lower splint thickness. Having the person lay back in the chair and try to snore in an advanced Wearing a Device that is fabricated to an unnatu-ral bite position, may cause / increase joint pain and bite changes over time. mandibular position and you can evaluate the airway opening as a starting position with a device.