Porcelain crowns are a wonderful and effective way to repair and strengthen badly damaged teeth. Porcelain crowns are also recommended when a tooth has undergone a root canal procedure. A Porcelain crown on a front tooth is desired when a good portion of the tooth structure is missing, whether related to large older fillings, tooth decay, or a missing biting edge. Porcelain crowns look so natural you won’t even know that they’re there.