
Antimicrobial and Mechanical Properties of GIC Incorporated with Silver Vanadate Nanoparticles: An In-vitro Study
ZC29-ZC32
Correspondence
Dr. Penmatsa Chaitanya,
Professor, Department of Pedodontics and Preventive Dentistry, Vishnu Dental College, Vishnupur, Bhimavaram-534202, Andhra Pradesh, India.
E-mail: chaitanyap@vdc.edu.in
Introduction: Glass Ionomer Cement (GIC) is a widely used restorative material, but its antibacterial property is not sustained overtime. The addition of nanosized silver vanadate (AgVO3) is an attempt to enhance the antibacterial property of GIC without affecting its mechanical properties.
Aim: To evaluate the antimicrobial property, Flexural Strength (FS) and Surface Micro Hardness (SMH) of GIC added with silver vanadate (AgVO3) nanoparticles.
Materials and Methods: This in-vitro study was conducted in the Department of Pedodontics, Vishnu Dental College, Bhimavaram, India from June 2020 to July 2021. The AgVO3 nanoparticles were proportionally added to Type II GIC (Group 1) powder at the concentrations of 0.5% (Group 2), 1.0% (Group 3) and 2.0% w/w (Group 4). A total of 56 specimens were prepared to evaluate the test parameters. Antimicrobial property was evaluated using disk diffusion method. FS was determined using a universal testing machine and SMH using Vicker’s Microhardness (VHN) tester. The obtained data was analysed using one-way analysis of variance (ANOVA), Tukey’s test and unpaired t-test.
Results: The GIC with AgVO3 nanoparticles exhibited higher antimicrobial property compared to unmodified GIC (Group 1). Group 4 exhibited highest antimicrobial property, followed by Group 3 and Group 2. Group 4 exhibited highest FS with a mean value of 26.90 MPa (p=0.002) and SMH with a mean value of 61.29 VHN (p=0.001) than Group 1.
Conclusion: Addition of 2.0% w/w AgVo3 nanoparticles to Type II GIC shown to have higher antibacterial property, and also displayed higher FS and SMH.