Impression Examples Examples of an impression that may cause an appliance to not fit. Click on image for larger view. Not enough impression material Not enough impression material Not enough impression material Apply balanced pressure when taking the impression Tray adhesive recommended Tray too small Not enough material to create a roll into the vestibule Example of a good impression Click on image for a larger view. Tray size is big enough to capture all teeth without missing molars or distortion from overhang Enough material used to properly capture all teeth All teeth appear correct without distortion, holes, tears, or bubbles Need assistance? We are here to help! Call Us 425-806-9194 Email Us Contact Us Please see our Local Delivery Calendar for case turnaround times. Need to find an article? Safety data sheets? Education Material or re-order form? Just head over to our Forms & Downloads page. Sign Up / Join