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VOLUME 8 , ISSUE 3 ( July-September, 2018 ) > List of Articles

RESEARCH ARTICLE

A Comparative Evaluation of Shear Bond Strength of Ceramic Fused to Metal Fabricated using Veneering and Pressable Techniques–An In Vitro Study

Rahul S Patil

Keywords : Instron, Metal ceramic, Pressable, Shear bond strength, Veneering

Citation Information : Patil RS. A Comparative Evaluation of Shear Bond Strength of Ceramic Fused to Metal Fabricated using Veneering and Pressable Techniques–An In Vitro Study. Int J Prosthodont Restor Dent 2018; 8 (3):84-90.

DOI: 10.5005/jp-journals-10019-1211

License: CC BY-NC 4.0

Published Online: 05-05-2022

Copyright Statement:  Copyright © 2018; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Purpose: Evaluation of shear bond strength of ceramic fused to metal fabricated using veneering and pressable techniques. Material and methods: 10 metal disc samples were prepared in Ni-Cr base metal alloy and divided in two equal groups. Group A: conventional veneering of ceramic on metal-(leucite-glass-ceramic) and group B: pressing of ceramic on metal-(leucite-glass-ceramic). The shear bond strength between ceramic and metal bond was tested using custom-made jig assembly and Instron testing machine. Values obtained were evaluated and compared. Results: The results of this study showed that the mean bond strength values for veneering ceramic samples were 25.06 MPa which was higher than the mean bond strength values for press ceramic samples which was 21.68 MPa. Conclusion: Mean bond strengths differed between the two groups, indicating that the fabrication technique has an influence on the bond strength. The mean bond strength values for press ceramic were below the recommended standard International Organization for Standardization (ISO) value of 25 MPa for metal-ceramic bond whereas values for veneering ceramic were in a clinically acceptable range.

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