What Causes a Black Line Near a Crown?

A dental crown is a great option to preserve a tooth that’s been compromised by decay, infection, or other issues. Crowns are made of high-quality materials to last for a decade or more with the correct care. However, you may see a black line appearing where your crown meets the gum line over time. Don’t panic. Here’s what’s causing the blemish and what your dentist can do to resolve it.

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