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Why is a Black Line Forming Around Your Dental Crown?

April 18, 2024

Filed under: Uncategorized — AdvancedDental @ 6:42 pm
two dental crowns sitting on a table

Is the edge of your dental crown dark? This unsightly line, as small as it may be, can have a drastic impact on your confidence by making it obvious to others that your teeth have been restored. However, the issue is relatively common, and the fix is simple. Read on to learn more about black lines forming at the base of dental crowns and why this issue occurs.

Why Do Dark Lines Form at the Base of Crowns?

If the first place that your eye wanders to when you catch a glimpse of your smile in the mirror is a black line at the base of your dental crown, know that you don’t have to live with this noticeable imperfection. This is a common issue that people with dental restorations experience for several different reasons, including:

  • The Material: The most common reason for this issue to occur is because of the material that your restoration is made from. Porcelain-fused-to-metal crowns are at a much higher risk of creating a dark line, as the metal interior can begin to show if the crown is no longer properly fitted atop the tooth.
  • A Shadow:  In rare cases, the dark line can simply be an illusion caused by the crown casting a shadow over the gumline.
  • Gum Disease: It’s also possible that the gums have receded away from the crown-topped tooth, revealing the metal underlayer.
  • Decay: Lastly, decay can also cause the area around the crown to appear dark.  

Can You Fix Black Lines Near Dental Crowns?

The treatment that you require to fix your issue will depend on the underlying cause of it. In some cases, a simple replacement crown crafted from non-metal material, like porcelain, can address the issue and make sure it doesn’t occur again. However, in other situations, like where a dental problem has developed, a tooth-colored filling or periodontal treatment may be necessary before the crown can be replaced. The best way to learn how this issue can be addressed in your individual situation is to contact your dentist to schedule an appointment.

Although a thin black line may not feel like a situation that needs to be urgently addressed, when left to linger, more serious problems could develop below the surface of your crown. With timely treatment, you can not only improve the overall aesthetic of your smile, but also rest-assured knowing that your tooth is healthy.

About the Practice

Drs. Farr and Carini bring a wealth of knowledge and skills to Advanced Dental Treatment Center. They’re dedicated to using high-quality materials and the latest techniques to ensure patients are able to enjoy lasting, beautiful dentistry. From dental crowns and bridges to start-to-finish dental implant treatment, we offer it all. For questions or to schedule an appointment, visit Advanced Dental Treatment Center’s website or call 414-209-7465.

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