The DE Hinge or (Distal Extension Hinge) was brought to market in 1953. Since then the current design of the hinge is much smaller. (3mm width and a vertical height of 1.5mm)

Bertram Dental Lab has had decades of experience producing DE hinged RPDs. The DE hinge is intended for use on bilateral clasp retained free end removable partial dentures to reduce loading or torquing of abutments. For patients, it allows patient comfort and abutment protection by allowing independent unilateral function eliminating torquing leverage on the abutments on the nonfunctioning side. The miniaturized size allows utilization in short vertical spaces and provides for good esthetics.