
Dental crowns are a restoration that are used in order to protect teeth that have been structurally damaged as a result of decay or another reason. They are hollow and placed over a compromised tooth as a way to protect it from enduring further harm. If you have had a dental crown for a while now, you may notice that a dark line has formed around it. Continue reading to learn the reason behind a black line around your dental crown and what you can do about it.
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