- ər) a device built into a removable partial denture that relieves the abutment teeth from excessive occlusal loads and stresses. Two basic types are recognized: one consisting of a movable joint between the direct retainer and the denture base (hinge s.) and the other consisting of a flexible connection between the direct retainer and the denture base or using a movable joint between two major connectors.
Medical dictionary. 2011.
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