Old caps (or crowns) often appear to have a black

line along the gum line. This may be the result of

leaky margins or decay. Sometimes, a metal margin

will create a dark line, as well. New porcelain

crowns, however, have no metal and will create

a natural look without black lines.


New porcelain crowns have no metal whatsoever

and will create a natural look without black lines.

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