The influence of hydrothermal fatigue on the clinically relevant functional properties of conventional glass-ionomer cements

Magdalena Łępicka; Agata Maria Niewczas; Magdalena Urszula Rodziewicz; Konrad Pikuła; Paweł Kordos; Tomasz Gredes; Krzysztof Jan Kurzydłowski

doi:10.1038/s41598-023-35880-4

The influence of hydrothermal fatigue on the clinically relevant functional properties of conventional glass-ionomer cements

Sci Rep. 2023 May 30;13(1):8738. doi: 10.1038/s41598-023-35880-4.

Authors

Magdalena Łępicka¹, Agata Maria Niewczas², Magdalena Urszula Rodziewicz³, Konrad Pikuła², Paweł Kordos⁴, Tomasz Gredes^{5

6}, Krzysztof Jan Kurzydłowski³

Affiliations

¹ Faculty of Mechanical Engineering, Institute of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C St., 15-352, Bialystok, Poland. m.lepicka@pb.edu.pl.
² Department of Conservative Dentistry with Endodontics, Medical University of Lublin, W. Chodzki 6, 20-093, Lublin, Poland.
³ Faculty of Mechanical Engineering, Institute of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C St., 15-352, Bialystok, Poland.
⁴ Institute of Transport, Combustion Engines and Ecology, Lublin University of Technology, Nadbystrzycka 36, 20-618, Lublin, Poland.
⁵ Department of Orthodontics, Technische Universität Dresden, Carl Gustav Carus Campus, Fetscherstr. 74, 01307, Dresden, Germany.
⁶ Department of Orthodontics and Temporomandibular Disorders, Poznan University of Medical Sciences, Bukowska 70, 60-812, Poznan, Poland.

Abstract

During their everyday service, the restorative dental materials are subjected to temperature changes which can be viewed as intensive in the context of the highest allowed temperatures for these materials. In this work, the effect of hydrothermal fatigue on the in vitro tribological performance, compression strength, microhardness, and surface roughness of glass-ionomer cements was studied. Samples of 3 commercially available cements were divided into the reference (aged 14 days) and thermocycled (20,000 cycles; 5-55 °C) groups. The results obtained show that functional properties of the specimens subjected to thermal fatigue significantly differ from the literature data on the cements aged at constant temperatures. The effect of hydrothermal fatigue on the functional properties of cements is discussed in the context of processes induced by exposure to variable temperatures.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Compressive Strength
Glass Ionomer Cements*
Hot Temperature*
Materials Testing
Surface Properties
Temperature

Substances

Glass Ionomer Cements