The TAP 3 is two custom trays joined at the front. A hook on the upper tray seats in a socket on the lower tray, and that connection holds the mandible forward. The joint works as a fixed hinge, so the trays stay connected while the patient sleeps.
Advancement is set at a single point on the midline with an adjustment key. With one central adjustment there is no left and right to set separately: both sides advance together, which avoids the irregular bite that uneven adjustment can leave.
The patient, or you, turns the key with the appliance in the mouth, following the titration you prescribe. One hook gives 7 mm of advancement. The stainless steel parts sit lingually, which helps the lips close over the appliance, and the design leaves room for the tongue.
We build the trays in hard acrylic, or hard acrylic with a soft liner, from upper and lower scans or impressions and a construction bite at the starting advancement and vertical opening you choose. Put the starting advancement and the titration range on the prescription.