If more than half of your tooth has been restored with a filling, a crown is necessary for any further restoration. Without adequate support, the tooth may break away around the filling. As a rule, when fillings get larger, teeth become weaker. That is why a crown is necessary. A crown covers the entire tooth and holds it together. Crowns are used when large fillings wear out, when a tooth is cracked, or when cosmetic improvements must be made on teeth. Porcelain crowns are an excellent restoration to use on a tooth where a large filling has worn out, when a tooth is cracked, or to improve the appearance of a tooth. We use durable, natural looking materials that blend in beautifully with your natural teeth.