Sorption and Solubility Characteristics of Compomer, Conventional and Resin Modified Glass-Ionomer Immersed In Various Media

Tooth coloured adhesive restorative materials are widely accepted and used for the restoration of carious and non-carious cervical lesions. The aim of this study was to evaluate and compare the solubility and sorption values of compomer (Dyract ®), conventional glass-ionomer(Fuji II ) and resin modified glassionomer (Fuji II LC improved) cements in various beverages such as tea, coffee, coca-cola and lime with saline as control. Twenty five circular discs per restorative material were prepared. Five specimens of each material were kept immersed in the test media and saline for seven days. Water sorption and solubility were calculated using ISO guidelines. Statistical analysis revealed statistically significant difference (P<0.05) between the three test materials. Among the media tested lime influenced both sorption and solubility values more than the other media. Fuji II was found to have more sorption and solubility values than the other two materials.