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Abutment Screw Loosening Due to Dental Laboratory Error
1Private Practice limited to Periodontics and Implantology, Manassas, Virginia.
Abstract:
Abutment screw loosening (ASL) is a fairly common problem that adversely affects the longterm success of a dental implant restoration. Dental laboratory error can play a role in the etiology of ASL. This article presents three cases that demonstrate how laboratory errors in the fabrication of implant restorations and mismanagement of abutment surfaces can result in ASL. It describes a method for examination of the abutment surface.

