I went the dentist and he said I needed a crown; they gave me a quote and on the quote the following was listed: 02750 Crown-Porcelain & Hi Nobl (3rd Tth) - Covered 02950 Buildup-Crown (3rd Tth) - Covered 02706 Porcelain Facing Fee (Molar) - Not covered 02705 Precious Metal Fee - Not covered Based on my insurance company, the first 2 codes should cover me and allow me to get this crown; why is my dentist charging his own codes for those other fees?