Tray Fabrication Step by Step
STEP 1 : Pour impression with fast-set plaster or dental stone. Pour alginate shortly after making impression to ensure accuracy. Trimming is less work if quantity of stone is kept to a minimum.
STEP 2 : For reservoir spaces, apply Ultradent LC Block-Out Resin approximately 0.5mm thick onto the labial surfaces. Stay about 1.5mm from gingival line. Do not extend onto incisal edges or occlusal surfaces.
STEP 3 : With vacuum former, heat tray material (Sof-Tray® Classic Sheets) until it sags approximately 1 inch. Adapt plastic over mold. Cool and remove model.
STEP 4 : Use Ultradent Ultra-Trim Scalloping Scissors to precisely trim tray 0.25 to 0.33mm occlusal from gingival margin.
STEP 5 : Return tray to model; check tray extensions
STEP 6 : Gently flame polish edges one quadrant at a time.
STEP 7: Finished custom tray, precisely trimmed, is now ready for final adaptation in the patient’s mouth.