Dental Implant Glossary Foundation A filling done before a crown or bridge preparation.  It is especially designed to be retentive in                              the tooth and to provide strength underneath the crown or bridge.  A crown or bridge should never                              be placed over an old or unknown filling, as in our experience we almost always find some decay                              under such fillings. Source: http://www.dentalleaders.com

[Dental Implant Homepage]