Lecturer
Custom trays should have two base plate wax spacer thicknesses over the remaining
teeth and one thickness over edentulous ridges. Two thicknesses of base plate wax
over the dentulous portion of the tray provide additional space for increased flexibility
to help prevent tooth breakage during the separation of the impression from the model.
The tray should be short of the vestibular depth in dentate areas remote from
abutments or framework. Custom trays should be neat, rigid, and adequately
extended.

Material File