European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
September 2013
Print ISSN:
0965-7452
Vol:
21
Issue:
3

A Comparison of the Accuracy of Three Removable Die Systems and Two Die Materials

doi:10.1922/EJPRD_1154Sivakumar05

Abstract - The purpose of this study was to evaluate the dimensional shift of three commonly used die systems (Conventional system, Pindex system, Di-Lok tray system) with two commercially available type IV die stones (Ultra rock and Pearl stone). Under controlled conditions, ten casts, each with two removable dies, were constructed for each system for a total of 30 casts and 60 removable dies. Before and after sectioning measurements to within 0.01 mm in horizontal and vertical planes were recorded and differences calculated. Data were analyzed with‘t’ tests, one way analysis of variance and post hoc Tukey test. The results demonstrated that among the die systems compared, no single system was superior to the others in all respects. But among the die materials, dies poured in Pearl stone exhibited more dimensional changes than Ultra rock (p<0.05). Selection of die material is as critical as selection of any particular die system for successful fabrication of fixed partial denture and implant prosthesis

KEY WORDS: Removable die, Pindex system, Di-Lok tray system, Ultra rock, Pearl stone

Article Price
£15.00
Institution Article Price
£
Page Start
115
Page End
119
Authors
I. Sivakumar, J. Mohan, K.S. Arunachalam, V. Zankari

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