SHELL TRAY IMPRESSION: A TECHNIQUE MODIFICATION

Wilson Matsumoto, Rossana Pereira de Almeida Antunes, Regina Maura Fernandes, Iara Augusta Orsi, Takami Hirono Hotta

Abstract


Obtaining an accurate working cast in fixed partial denture is fundamental to achieve success and is related to impression materials and dental impression techniques. To fabricate fixed partial denture several impression techniques are used to obtain working casts or die stone, among them is the shell technique. The present work has the objective to demonstrate a variation in the relining technique of the shell. In this technique the shell is filled up with acrylic resin (Duralay) in a unique mixture, the acrylic resin is manipulated until plastic phase then the shell/resin set is inserted in the prepared tooth to copy the finish line area of the preparation. Plastic phase acrylic resin has low quantity of free monomer, provokes minimal discomfort to the patient and has adequate consistency to promote gingival retraction. The authors concluded that this technical variation has simple and effective clinical application and produces very precise dies stone.

Keywords


Dental impression materials; denture partial fixed; dental impression technique



DOI: http://dx.doi.org/10.17267/2596-3368dentistry.v9i1.1271

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Copyright (c) 2017 Wilson Matsumoto, Rossana Pereira de Almeida Antunes, Regina Maura Fernandes, Iara Augusta Orsi, Takami Hirono Hotta

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Journal of Dentistry & Public Health

ISSN 2596-3368

Updated 05/15/2019

Creative Commons License