Vemina P Chalissery1, Nikhil Marwah2, Mohammed Almuhaiza3, Abdulaziz M AlZailai4, Elna P Chalisserry5, Shilpa H Bhandi6, Sukumaran Anil7. 1. Postgraduate Student, Department of Pedodontics and Preventive Dentistry Mahatma Gandhi Dental College and Hospital, Jaipur Rajasthan, India, e-mail: Ksucod@gmail.com. 2. Department of Pedodontics and Preventive Dentistry Mahatma Gandhi Dental College and Hospital, Jaipur Rajasthan, India. 3. Department of Restorative Dental Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, Al-Kharj Kingdom of Saudi Arabia. 4. Department of Restorative Dentistry, Jazan Dental Center Jazan, Kingdom of Saudi Arabia. 5. Department of Maxillofacial Surgery and Diagnostic Sciences College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia. 6. Department of Restorative Dentistry, College of Dentistry Jazan University, Jazan, Kingdom of Saudi Arabia. 7. Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia.
Abstract
OBJECTIVES: The purpose of this in vitro study is to compare the compressive strength (CS) and diametral tensile strength (DTS) of the zirconia-reinforced restorative material (Zirconomer®) with conventional glass ionomers (Fuji 1X) and amalgam. MATERIALS AND METHODS: Specimens (n = 120) were fabricated from silver amalgam, reinforced glass ionomer cement (GIC) (glass ionomer, Fuji 1X GC Corp.), and zirconia-reinforced glass ionomer (Zirconomer, Shofu Inc.) for testing the CS and DTS. The results were analyzed using analysis of variance, followed by a Tukey post hoc test. RESULTS: Both CS and DTS were found to be significantly higher for the zirconia-reinforced GIC and silver amalgam compared with GIC (p < 0.001). CONCLUSION: A newer class of restorative material like Zirconomer helps to overcome the potential hazard of mercury, but retains the strength and durability of amalgam as well as the sustained high-fluoride release of GICs. Furthermore, long-term studies are required to confirm its use as an alternative to the currently available posterior restorative material.
OBJECTIVES: The purpose of this in vitro study is to compare the compressive strength (CS) and diametral tensile strength (DTS) of the zirconia-reinforced restorative material (Zirconomer®) with conventional glass ionomers (Fuji 1X) and amalgam. MATERIALS AND METHODS: Specimens (n = 120) were fabricated from silver amalgam, reinforced glass ionomer cement (GIC) (glass ionomer, Fuji 1X GC Corp.), and zirconia-reinforced glass ionomer (Zirconomer, Shofu Inc.) for testing the CS and DTS. The results were analyzed using analysis of variance, followed by a Tukey post hoc test. RESULTS: Both CS and DTS were found to be significantly higher for the zirconia-reinforced GIC and silver amalgam compared with GIC (p < 0.001). CONCLUSION: A newer class of restorative material like Zirconomer helps to overcome the potential hazard of mercury, but retains the strength and durability of amalgam as well as the sustained high-fluoride release of GICs. Furthermore, long-term studies are required to confirm its use as an alternative to the currently available posterior restorative material.
Authors: Aline Batista Gonçalves Franco; Amanda Gonçalves Franco; Geraldo Alberto Pinheiro de Carvalho; Elimario Venturin Ramos; José Cláudio Faria Amorim; Alexandre Sigrist de Martim Journal: J Mater Sci Mater Med Date: 2020-04-11 Impact factor: 3.896