When you first received your dental crown, you may have loved the way it made your tooth look and feel. Now, though, you’ve noticed a thin black line around the crown’s edge. Does that mean something is wrong with your crown, or worse, does it mean that something is wrong with the underlying tooth? Fortunately, the answer to both questions is probably no. A dentist in Boca Raton is here to discuss what that black line around your crown means and what you can do about it.