If you’ve ever had a severely decayed tooth or have undergone a root canal, there’s a good chance your dentist provided you with a dental crown after making the necessary repairs. These restorations are placed over your tooth like a cap to protect it as well as preserve your ability to eat and speak normally. If you’ve noticed a black line forming around yours that you can’t brush away, it’s natural to feel concerned! You might start to worry about what caused it and whether it’s dangerous, for example. If you’ve noticed a dark area along between your gumline and your dental crown, keep reading to learn what causes it and what you can do.
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