GENERAL CONSIDERATIONS
Technique Tips :
- Create a shoulder (preferred) or deep chamfer with rounded gingivo-axial
line angles.
- Be sure to carry the margin interproximally to reduce metal shadow
and ensure esthetic quality.
- For a porcelain to margin finish, prepare a chamfered shoulder 0.5
mm subgingivally on the labial aspect of the tooth.
- Tissue must be retracted during impression so that the resultant die
is a complete reflection of the prepared shoulder.
- For superior esthetics, you may wish to select a PORCELAIN BUTT MARGIN.
ANTERIOR CROWN PREPARATION
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Technique Tips :
- Incisal reduction should allow for no less than 2 mm of porcelain
in final restoration.
- Ensure a minimum labial reduction of 1.5 mm (insufficient labial
reduction can cause poor translucency, bucked centrals and angry
patients).
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POSTERIOR CROWN PREPARATION
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