Abstract

Comparative Evaluation of Solubility of Five Commercially Available Glass Ionomer Luting Cements in Dynamic Artificial Saliva: An In Vitro Study

Aim: To compare solubility of five luting cements namely, GC glass ionomer cement, 3M glass ionomer cement, shofu glass ionomer cement, SDI glass ionomer cement and ivoclar glass ionomer cement in artificial saliva media with two different pH, (pH-5 and pH-7) circulated with magnetic field.

Material and methods: Each of the five materials under investigation was used to create a total of 40 specimens, which were then compared for their solubility in an artificial salivary environment. The solubility was determined by calculating the difference between the specimen's initial weight and its final, constant weight after being stored in a desiccator.

Results: All glass ionomer luting cements show highest solubility in pH 5 and lowest solubility in pH 7. Among all glass ionomer luting cements GC, 3M, ivoclar and shofu showed highest solubility in pH 5 followed by pH 7, whereas SDI showed highest solubility in both medium pH 5 and pH 7. When solubility was compared with artificial saliva of different pH (pH 5 and pH 7), it was observed that effect of solubility on SDI Glass ionomer luting cement was significantly more than on GC, 3M, ivoclar and shofu glass ionomer luting cements.

Conclusion: GC, 3M, shofu, Ivoclar and SDI are more soluble in acidic medium (pH 5) and least soluble in neutral medium (pH 7). GC, 3M, shofu and ivoclar showed least solubility in acidic and neutral pH when compared with SDI. Thus, an important determinant of luting cement in mouth is their resistance to dissolution and disintegration, which is of great importance to clinician in routine dental practice.

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