Gray Spot on Gums After Dental Veneers or Crown Removal? Here’s What It Means

Observation:
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The photo shows a well-aligned, glossy set of veneers or crowns.
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However, there’s a grayish or bluish tinge near the gum line of one front tooth, with what appears to be a small thread or cotton fiber lodged underneath the gum or crown margin.
Possible Reasons for the Gray/Blue Shade:



















