Bite Registration Trays (Disposable) Full Arch High quality impression tray. Strong, rigid distortion free plastic construction. Smooth edges for patient comfort. Excellent retention for impression materials whilst providing sufficient pressure for all details. Made from thin material, This dental bite registration impression trays offer accurate final impressions. Our trays have a rigid frame and thumb tab that is firm. They also have a durable mesh material to hold impression material to help promote perfect molds every time. Bite trays are filled with an impression material that undergoes a chemical reaction to harden, creating a mold around your teeth. The material contains a base and a catalyst. The material is placed in the bite tray, and the bite tray is inserted into the patient’s mouth and allowed to harden for a few minutes. Once the material is set, the tray can be removed. Bite registration refers to the relationship between the upper and lower teeth. Bite registration captures the position of upper and lower teeth when they bite down to see how they hit and fit together. When using a bite tray, patients should bite in their normal jaw position to ensure that crowns and bridges fit correctly within their normal bite registration.