Tips for making a perfect mask

Adjust temperature using microprocessor based switch, to 70ºC. Set base plate on treatment  table with   suitable head rest.Position the patient on table. Place the precut into heated water until thermoplastic becomes completely transparent (about 3‐4 minutes). Lift the precut from water and quickly and gently shake off excess water. Centre the mask on body part. Tilting slightly downward, gently and quickly mold the thermoplastic to the contours of the patient’s body. As thermoplastic cools, it becomes rigid and returns to its original white colour. Do not remove the frame until it cools completely and rests on the patient for at least 5 minutes. Thermoplastic will shrink slightly during cooling process. Removing frame too soon may result in excess shrinkage and patient discomfort when refitting. If desired, treatment portals can be cut after the frame has hardened.