When you first got your dental crowns in Kittanning, they were so lifelike that no one else could even tell they weren’t real teeth. Eventually, though, you noticed that black lines were starting to appear on the crowns. You might be concerned when you first see the discoloration, but rest assured that it doesn’t mean that there’s anything structurally wrong with the restoration – though it’s obviously an aesthetic problem. Why do these black lines form, and what can you do about them? Read on to learn the answers so that you can keep your smile looking bright.
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