Boxing can be defined as the enclosure of an impression to
produce the desired size and form of the base of the cast and to preserve
desired details. Beading and boxing final impressions before pouring
preserves the extension, as well as the thickness, of the border; controls
the form and thickness of the base of the cast; and boxing also facilitates
placing remounting plates in the cast; and conserves artificial stone. It
ensures the capture of the mucobuccal and mucolingual borders of impression.
Beading and boxing the impression can facilitate to pour a base on the
secondary impression without inverting.