DENTSPLY 57H User Manual Page 10

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TOOTH MARGIN PREPARATION
. A ° shoulder preparation or deep chamfer is recommended.
. Normal tooth reduction (.mm) is recommended.
SUBSTRUCTURE DESIGN
Extend the facial surface of the metal substructure so that the metal ends at the axial
gingival corner of the margin preparation or extends slightly onto the gingival ledge.
OPAQUE PROCEDURE
Apply and fire the Ceramco paste opaque or Ceramco powder opaque porcelain using
your normal procedures.
Be sure the opaque completely covers the metal at the gingival margin. Failure to do so
will make the completed porcelain margin appear gray.
DIE SEALER APPLICATION
. Using DENTSPLY Prosthetics die sealer, apply a thin, even layer of sealer over the die
margin area. Blow off any excess die sealer and allow the liquid to thoroughly dry.
. Reapply the die sealer at least  more times and allow to dry.
. Mark the facial margin with a wax pencil.
Proper Metal Design
Die Sealer Application
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