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Journal of Dental and Oral Health

JDOH

Aabstract

Research Article

Clinical Evaluation of The Marginal Integrity, and Internal Fit of E-Max Endocrown Restorations with Different Marginal Preparation Designs. Ex-Vivo Study

Inas A. Elalem, Rabab M. Ibraheem, Ahmed M. Hamdy

Correspondence Address :

Inas A. Elalem
Dr. Haider A.Shafi dental college
Al-Azhar University
Gaza Strip, Palestine
Address, Rimal, Gaza, Gaza Strip, Palestine
Tel:00970599448344
Email: inas.alalem@gmail.com

Received on: May 27, 2019, Accepted on: June 10, 2019, Published on: June 17, 2019

Citation: Inas A. Elalem, Rabab M. Ibraheem, Ahmed M. Hamdy (2019). Clinical evaluation of the marginal integrity, and internal fit of E-Max endocrown restorations with different marginal preparation designs.Ex-vivo study

Copyright: 2019 Inas A. Elalem, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

  • Abstract

Abstract
Purpose: The aim of this study was to evaluate clinically the marginal integrity, and internal fit of endodontically treated molar teeth restored with endocrown restorations with two different preparation designs.
Materials and Methods: Seventeen patients had a twenty endocrown restorations which were constructed of lithium disilicate (IPS E.max press ceramic). The endocrown restorations were randomly and equally divided into two groups regarding the marginal
preparation designs; group 1: had a butt joint preparation and group 2: had a circumferential preparation with deep chamfer finish line. Evaluation of the marginal integrity and the internal fit were performed using silicon replica technique, each replica was sectioned into four segments and each segment had five reference points to be measured using digital microscope at 35X magnification. The data were analyzed using Two-way ANOVA and Post-hoc tests.
Results: The marginal gaps of both groups were within the clinical acceptable range, but group 1 (73.49 +/- 5.29μm) was statistically significantly higher than group 2 (59.81+/-3.42 μm), meanwhile there was no significant difference regarding the internal fit of both groups as group 1(83.05+/-11.72 μm) had slightly higher mean value than group 2 (80.29+/-10.59 μm).
Conclusion: Endocrown restorations with different preparation designs showed a clinical acceptable range of marginal and internal fit.

Keywords: Endocrown Restorations, Marginal Preparation Designs, Marginal Integrity, Internal Fit.

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