Posts tagged DENTAL PAIN
Why the edge of a crown can look grey

The grey line you're noticing around the edge of an older dental crown is likely due to the metal base of a porcelain-fused-to-metal (PFM) crown becoming exposed. PFM crowns consist of a metal substructure covered by a layer of porcelain. The grey line typically becomes visible over time for a few reasons, an older crown, a metal crown substructure, gum recession or decay.

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