Before Getting a Crown : Dental crowns are a part of cosmetic dentistry. Worn down, permanently stained, a mishappen, or discolored tooth, a dental crown can cover all. A dental crown is one of the most common dental restoration efforts to make your teeth function as usual. A dental crown is a permanent cap that preserves and covers your chipped, broken, or weak teeth. Crowns are custom-made to match the rest of your teeth set.