Prefabricated Metal Intracoronal Semiprecision Attachments for Removable Partial Dentures

Zinner, Ira D.; Miller, Richard D.; Parker, Herbert M.; Panno, Francis V.
July 1989
International Journal of Prosthodontics;Jul/Aug1989, Vol. 2 Issue 4, p357
Academic Journal
The inaccuracies of the casting and fitting processes associated with semiprecision intracoronal attachment systems may compromise the fit of the completed prosthesis. The objective of using metal prefabricated intracoronal semiprecision attachments is to improve the adaptation between the matching attachment surfaces used in the fabrication of removable partial dentures. In milled dovetail or waxed dowel rests, the attachment of one side is completed and the other is cast to match. The prefabricated attachment system presented uses a matching component cast directly against the precast metal rest-mandrel. This reduces the inaccuracies resulting from waxing, investing, and casting.


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