Secondary flare provides a marginal metal of:
Correct Answer: 30-40 degrees
Description: Secondary flare:
It is a flat plane superimposed peripherally to the primary flare. Advantages are:
Secondary flare ensures cavosurface margins to extend into embrasures (self-cleansing area).
Permits easy burnishing and finishing of the restoration.
Produces more obtuse-angled and stronger cavosurface margin.
In class II cast gold inlay, proximal box should have flares so as to have metal of 30-40° which is burnishable.
Category:
Dental
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