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Quintessence Int 24 (1993), No. 11     1. Nov. 1993
Quintessence Int 24 (1993), No. 11  (01.11.1993)

Page 779-781


The corrected cast impression: An alternative technique
Walton
Although the corrected or altered cast impression technique is widely taught, it seems to be used very little, in part bec ause it requires separate appointments for framework try-in, corrected cast impression, and occlusal registration. This article describes a technique whereby each of these procedures may be accomplished accurately in one appointment. Visible light-cured resin impression trays with integral occlusion rims are fabricated after the framework has been fitted. Standard procedures are used for the corrected cast impression, and interocclusal records are made with the framework with the impression attached. A stable occlusal registration material allows the interocclusal records to be set aside and used to articulate the corrected cast before the impression tray is separated from the cast. Benefits of this technique include significant time savings, improved accuracy, and simplified procedures.