ANSI/ADA 53-2008

This specification covers polymer-based crown and bridge materials for laboratory-fabricated permanent facings or anterior crowns which may or may not be attached to a metal substructure. This specification also applies to polymer-based crown and bridge materials for which the manufacturer claims adhesion to the metal substructure without macromechanical retention, such as beads or wires. The specification is a modified adoption of ISO 10477:2004.