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.
Copyright © 2012; Jaypee Brothers Medical Publishers (P) Ltd.
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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