Paolo Di Francesco, Cherana Gioga, Raluca Monica Comăneanu, Anca Iuliana Popescu, Cristian Niky Cumpătă, Ruxandra Nicolette Voinea-Georgescu, Anamaria Bechir
ABSTRACT
Aim of the study: This study evaluates the behavior of novel dental materials under corrosive attack caused by artificial saliva immersion at varying pH levels.
Material and methods: Three materials were tested: zirconium dioxide (ZrO2), lithium disilicate-based ceramic (IPS e.Max CAD), and a hybrid ceramic composite (VarseoSmile Crownplus). The samples underwent immersion in artificial saliva at pH values of 3 and 5.5 for periods of 3, 7, and 14 days. Surface morphology and mass variations were assessed using Scanning Electron Microscopy (SEM) and analytical precision weighing.
Results: Zirconium dioxide exhibited the highest chemical stability under all tested conditions, with minimal mass variations. Lithium disilicate ceramics showed moderate stability, while the hybrid ceramic composite demonstrated the greatest mass loss, indicating susceptibility to acidic environments.
Conclusions: Zirconium dioxide proves to be the most reliable material for corrosive resistance in dental applications, followed by lithium disilicate ceramics. Hybrid ceramic composites require further development to enhance stability in acidic conditions.
DOI : 10.62610/RJOR.2025.1.17.67
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