<p>Dental impression tray is used to hold the impression material while the impression is being formed intra-orally. The dental tray is then used to provide firm support to make sure the impression is free of deformations. The impression tray is designed to capture a particular part of the patient&rsquo;s anatomy, e.g., a quadrant or an entire arch. Each impression tray dental is specially designed according to the specific area of the mouth.</p>