superstructure
The prosthetic component that attaches to or overlies an implant abutment or substructure, constituting the visible, functional portion of the restoration.
Full Definition
In implant and fixed prosthodontics, the superstructure is the crown, bridge, or full-arch prosthesis that is secured to the underlying substructure or implant abutment. It encompasses the aesthetic and occlusal surfaces that are visible and functional in the patient's mouth. Laboratory editors will encounter this term in implant case documentation, treatment plans, and work orders. Distinguishing 'superstructure' from 'substructure' is a key editorial competency in this field, as conflation creates clinical ambiguity.
Usage
Usage note: In implant documentation, 'superstructure' has a very specific meaning and must not be used interchangeably with 'restoration' in general terms.
In Context
- "The implant superstructure was designed as a screw-retained bridge spanning from position 14 to 16." — Implant Case Report
- "Verify that the superstructure material is correctly identified as lithium disilicate in the prescription." — Laboratory Prescription Audit