The effect of speed sintering and hydrothermal aging on the biaxial flexural strength and microstructure of recent cubic zirconia material
Said, A., Abdelfattah, G., Zohdy, M., Salah, T. (2024). The effect of speed sintering and hydrothermal aging on the biaxial flexural strength and microstructure of recent cubic zirconia material. EKB Journal Management System, 34(2), 232-240. doi: 10.21608/asdj.2024.285645.1265
Ayman Mohamed Said; Ghada Abdelfattah; Maged Zohdy; Tarek Salah. "The effect of speed sintering and hydrothermal aging on the biaxial flexural strength and microstructure of recent cubic zirconia material". EKB Journal Management System, 34, 2, 2024, 232-240. doi: 10.21608/asdj.2024.285645.1265
Said, A., Abdelfattah, G., Zohdy, M., Salah, T. (2024). 'The effect of speed sintering and hydrothermal aging on the biaxial flexural strength and microstructure of recent cubic zirconia material', EKB Journal Management System, 34(2), pp. 232-240. doi: 10.21608/asdj.2024.285645.1265
Said, A., Abdelfattah, G., Zohdy, M., Salah, T. The effect of speed sintering and hydrothermal aging on the biaxial flexural strength and microstructure of recent cubic zirconia material. EKB Journal Management System, 2024; 34(2): 232-240. doi: 10.21608/asdj.2024.285645.1265

The effect of speed sintering and hydrothermal aging on the biaxial flexural strength and microstructure of recent cubic zirconia material

Ain Shams Dental Journal
Volume 34, Issue 2, June 2024, Page 232-240  XML PDF (2.41 MB)
Document Type: Original articles
DOI: 10.21608/asdj.2024.285645.1265
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Authors
Ayman Mohamed Said email orcid 1; Ghada Abdelfattahorcid 2; Maged Zohdyorcid 3; Tarek Salahorcid 4, 5
1Prosthodontics department, faculty of dentistry, badr university in cairo, cairo, egypt
2Associate Professor, Department of Fixed Prosthodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.
3Professor, department of fixed prosthodontics, faculty of dentistry, ain shams university, cairo,egypt
4Professor, Department of Fixed Prosthodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.
5Vice Dean, Postgraduate Affairs and Scientific Research, Faculty of Dentistry MIU, Egypt.
Abstract
Aim: To evaluate the effect of speed sintering protocol and hydrothermal aging on the biaxial flexural strength of recent cubic zirconia material.
Materials and methods: Discs were prepared from recent cubic zirconia material, Katana UTML (K). The prepared discs were fabricated from milled cylinders. Prepared discs were divided according to sintering protocol applied, either a normal cycle (N) or a speed cycle (S). Half of the discs were subjected to biaxial flexural strength (BFS) test using a universal testing machine.the remaining discs were submitted to accelerated aging (A) for 5 hours and then subjected to biaxial flexural strength (BFS) test. Data collected and analyzed using one-way ANOVA. Scanning electron microscope was used for microstructure analysis.
Results: Non-significant difference in (BFS) values were found between both normal and speed sintering protocols before and after subjecting to hydrothermal aging, The highest overall values were reported from KSA (2168± 212.4 MPa) . Average mean grain size values showed a reduction in size after subjecting to speed sintering protocol.
Conclusion: Speed sintering protocols and hydrothermal aging did not report a significant difference in biaxial flexural strength mean values. Speed sintering cycles reduced the mean values of grain size.
Keywords
speed sintering; cubic zirconia; hydrothermal aging; flexural strength
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