Noticing a black line forming around your dental crown can be both surprising and concerning, especially if the crown is located on a visible front tooth. While this discoloration may not always indicate a serious issue, it can affect the aesthetics of your smile and may point to an underlying problem. Understanding what causes that dark line and what can be done about it is the first step in restoring both your dental health and your confidence. Here’s a breakdown of the most common reasons why a black line may be forming around your dental crown.
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