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The gum tissue around my crown looks dark. What causes this? Can it be eliminated?
The darkness around old crowns is primarily due to the metal needed to support the porcelain. Yes, it can be eliminated. These types of crowns have been replaced with newer technology which consists of all porcelain restorations with zirconium support. Therefore, metal in most circumstances is not necessary. The newer, all porcelain restorations are more esthetically pleasing and natural looking.