Premier's Triple Tray design includes a wide body that is 19% longer and 33% wider to capture up to six teeth and reduce potential tissue impingement. These trays perform three functions simultaneously, Upper & Lower Impression plus Bite Registration. 35/Pkg Assortement 5 Each: Wide Body Posterior, Posterior, Anterior, Quadrant, Sideless Posterior, Extended Quadrant, 3/4 Arch