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VOLUME 13 , ISSUE 2 ( March-April, 2012 ) > List of Articles


Fracture Strength of Three All-Ceramic Systems: Top-Ceram compared with IPS-Empress and In-Ceram

Firas Al Quran, Reem Haj-Ali

Citation Information : Quran FA, Haj-Ali R. Fracture Strength of Three All-Ceramic Systems: Top-Ceram compared with IPS-Empress and In-Ceram. J Contemp Dent Pract 2012; 13 (2):210-215.

DOI: 10.5005/jp-journals-10024-1123

Published Online: 01-10-2012

Copyright Statement:  Copyright © 2012; The Author(s).



The purpose of this study was to investigate the fracture loads and mode of failure of all-ceramic crowns fabricated using Top-Ceram and compare it with all-ceramic crowns fabricated from well-established systems: IPS-Empress II, In-Ceram.

Materials and methods

Thirty all-ceramic crowns were fabricated; 10 IPS-Empress II, 10 In-Ceram alumina and 10 Top-Ceram. Instron testing machine was used to measure the loads required to introduce fracture of each crown.


Mean fracture load for In-Ceram alumina [941.8 (± 221.66) N] was significantly (p < 0.05) higher than those of Top-Ceram and IPS-Empress II. There was no statistically significant difference between Top-Ceram and IPS-Empress II mean fracture loads; 696.20 (+222.20) and 534 (+110.84) N respectively. Core fracture pattern was highest seen in Top- Ceram specimens.

How to cite this article

Quran AF, Haj-Ali R. Fracture Strength of Three All-Ceramic Systems: Top-Ceram Compared with IPSEmpress and In-Ceram. J Contemp Dent Pract 2012;13(2): 210-215.

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