Evaluation of Solubility of Luting Cements in Different Solutions

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


Objective. To evaluate and compare the solubility 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 solubility of the cements was calculated by weighing the specimens before and after immersion and desiccation. Values of solubility in water (Wsl) in microgram/mm3 for each of the five specimens were calculated using the following formula (ISO 4049:2009): Wsl=(m1-m3)∕V. The Mann-Whitney U nonparametric statistical method and Post hoc sample comparisons were applied.

Results. GC Fuji Plus showed statistically significant higher solubility in comparison with Variolink II and Multilink Automix in all three solutions. In acidic artificial saliva (pH 3.0) Multilink Automix showed significantly higher values of solubility compared to Variolink II (P<0.016). By studying the effect of pH value on the solubility of GC Fuji Plus cement, significantly higher values of solubility in pH 3.0 artificial saliva were confirmed (P<0.009). The influence of the surrounding pH value on the solubility of the resin cements Multilink Automix and Variolink II was researched. No statistically significant difference was found.

Conclusion. Solubility values were mainly influenced by the proportion of hydrophilic matrix, the type and composition of filler, and the pH value of the solutions.


Solubility; Resin Modified Cements; Resin Cements; Prosthodontics

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DOI: http://dx.doi.org/10.5644/ama2006-124.284


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