Acid-etched splinting to a ceramometal abutment.

This technique describes an acid-etch metal splint with a ceramometal abutment. The internal surface of the DuraLingual Wing Form patterns provide undercuts necessary for composite bonding. The external surface provides a smooth solid metal surface when cast. Since this system uses mechanical undercuts, the resin-bonded splints can have multiple try-ins without the detrimental effects of burnishing and contamination that occur with electrolytically etched metal surfaces. If an abutment for a resin-retained fixed partial denture requires a ceramometal crown, a DuraLingual Wing Form can be incorporated onto its lingual surface thereby providing mechanical undercuts for bonding. The opposite undercuts of the crown and splint provide excellent bond strength for the system.