The comparative evaluation of release profiles of aluminium, fluoride, sodium and strontium by resin modified and conventional glass polyalkenoate cements in neutral and acidic medium--an in vitro study.

The present study was carried out to evaluate the Al, F, Na and Sr release profiles of conventional and resin modified glass polyalkenoate cements in neutral (deionized water) and acidic medium (lactic acid). Twelve pellets of each material were prepared under standardised conditions and were immersed in their respective solutions for a study period of 90 days. Fluoride analysis was carried out by Orion Electrode and the other elemental analysis were done by Atomic Absorption Spectrophotometer. Statistical analysis revealed no significant difference in the Al, F and Na release profiles between the two materials in both neutral and acidic media.