Mechanical and antimicrobial properties of translucent zirconia covered by silver silicate or silvered glaze

• Grant number: 21/00748-1
• Support Opportunities: Scholarships in Brazil - Master
• Effective date (Start): August 01, 2021
• Effective date (End): July 31, 2023
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Renata Marques de Melo Marinho
• Grantee: Clarice Ferreira Sabino
• Host Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. São José dos Campos , SP, Brazil
• Associated scholarship(s): 22/03273-7 - Antimicrobial effect and mechanical properties of ultra-translucent zirconia coated by experimental glasses, BE.EP.MS

Abstract

Zirconia, when applied clinically in dentistry, is exposed to the oral environment, which makes it highly prone to superficial adhesion of biofilm and microbial proliferation. Silver has a proven antimicrobial action and, in association with zirconia, could confer some antimicrobial activity to this ceramic. If silver is applied inside a very smooth glass, it can also reduce the biofilm's surface adhesion. Therefore, the aim of this study will be to analyze the surface properties, biofilm formation and inhibition of microbial adhesion of the ultra translucent zirconia 5Y-PSZ covered by different glasses. 124 samples of UTML ultra-translucent zirconia (KATANA ", Kuraray Noritake Dental Inc, Tokyo, Japan) will be used, divided into 4 groups: ZR polished; Glazed ZR; ZR with silver glass; ZR with silver glass + glaze. The specimens will be subjected to surface roughness tests (n = 15), profilometry (n = 2), colony forming units (CFU) count (n = 8), biaxial flexion strength (n = 10) and electron microscopy of scan (n = 2). The expected result will be to prove that UTML zirconia covered with silver has less biofilm surface adhesion than glazed and polished surfaces, besides having antimicrobial activity against specific microorganisms.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SABINO, Clarice Ferreira. Antimicrobial effect and mechanical properties of translucent zirconia coated with experimental glasses. 2023. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Ciência e Tecnologia. São José dos Campos São José dos Campos.