The plates are repositioned in the patient's mouth and the patient asked to gently close together. The mandible is guided, if necessary, so that the upper stylus engages the hole on the lower plate. The patient is asked to remain closed whilst impression plaster is placed in between the rims and in the buccal notches on both sides. Once the plaster has set, the left and right plaster keys and the upper and lower plates are removed from the mouth by asking the patient to slowly open. The upper and lower models are repositioned on the bench with the stylus engaging the hole and with the left and right plaster keys.
Sticky wax is used to fix the keys to the wax rims.
The model assembly may be sent to the laboratory for mounting on an articulator.