Evaluation of the water sorption of luting cements in different solutions

Alma Gavranović-Glamoč, Muhamed Ajanović, Samra Korać, Selma Zukić, Sanela Strujić-Porović, Alma Kamber-Ćesir, Lejla Kazazić, Emir Berhamović


Objective. To evaluate and compare the water sorption of three luting cements in three different solutions: distilled water and artificial saliva with different pH values (7.4 and 3.0). Materials and methods. Resin-modified glass-ionomer cement (GC Fuji Plus) and two resin cements (Multilink Automix and Variolink II) were used. A total of 45 specimens - 15 specimens (15x1 mm) for each cement were prepared according to ISO standard 4049:2009. The water sorptions of the cements were calculated by weighing the specimens before and after immersion and desiccation. Results. Nonparametric statistic methods were applied. GC Fuji Plus cement showed significantly higher values of water sorption in all three solutions of both resin cements (p<0.009) and significantly higher values of sorption in artificial saliva pH 3.0. Multilink Automix showed significantly higher values of water sorption compared with Variolink II in artificial saliva pH 7.4, and higher values of sorption in this solution compared with pH value 3.0. Con- clusion. Water sorption values are mainly influenced by the proportion of hydrophilic matrix, the type and composition of filler, and the pH value of solutions.


Water sorption ; Resin modified cements ; Resin cements ; Prosthodontics

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DOI: http://dx.doi.org/10.5644/ama2006-124.197


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