This page describes what goes on in the dental laboratory to make the crowns. Click here to skip to the next page to see what happens at the next appointment if this is not of interest.
The cast produced by pouring the impression of the prepared teeth is called the "Master Cast". .
The master cast is trimmed and small brass pins are placed into the cast below each tooth. A base of plaster is poured against the bottom of the cast around these pins, and saw cuts are made between the teeth. Each individual tooth can now be removed from the base and is called a "die"..
Wax patterns for the metal portion of the crown.
On each die wax is added and hand carved to the shape of a tooth. Wherever porcelain is to be placed, space is left to make room for a proped thickness of porcelain (arrows)
Same patterns as above from the tongue side (lingual aspect).
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