All-Ceramic crowns can be the best choice for restoring a tooth that is cracked or broken, or a tooth that is badly damaged and cannot be corrected with a veneer. All-Ceramic crowns are matched to the colour of your surrounding teeth, and offer the most natural-looking dental restorations. All-Ceramic crowns are made of ceramic, and have no metal in them. They are sometimes strengthened with a translucent material such as zirconium. On average, all-ceramic crowns last about 15 years. With proper care, though, it is not uncommon to see them last up to 25 years or more.