Evaluation of the Properties of a New Experimental Salvadora Persca (Miswak) Containing Glass Ionomer

Abstract

This in-vitro study was conducted to modify conventional glass ionomer cement(GIC) with Salvadora persica (Miswak) extract (SPE) at three different concentrations (SPE 8%, SPE 10%, SPE 15%). The modified groups of glass ionomer cement were evaluated and compared to the control group (SPE 0%) in terms of compressive strength, bond strength, fluoride release, film thickness, setting time and antibacterial activity. Compressive strength was tested following the ADA specification no.66 for glass ionomer cements. Cylindrical specimens were prepared and tested using a universal testing machine. The specimens were placed in vertical position and compressive load was applied along the long axis of the specimens until fracture. The maximum load applied when the specimen fracture was recorded and the compressive strength was calculated. The bond strength was evaluated by shear bond strength test to dentin. Premolar teeth extracted for orthodontic reasons were used after being flattened and embedded in gypsum. The mixed cement was placed in a mould that was placed centrally on the dentin surface of the tooth. All specimens were tested using the universal testing machine.