Blog - Tetracycline stained teeth

  • Replacing Dental Crowns with Black Lines at the Gum

    Posted by: Charles Payet | On: May 8, 2009

    What’s the Black Line Under Old Crowns? Here’s a case from a few years ago where the patient was really unhappy with his old, yellow, ugly old Porcelain-to-Metal crowns, partially because of the dark grey line at the crowns’ edges.  That black line between the gum and crowns was from the metal inside the crowns […]

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