Abstract:
Objective
This study aimed to evaluate and compare between four physical variables (sorption, solubility, color change and fluoride release) for glass ionomer (GI) sealant against moisture tolerant
resin sealant in solutions with different pH in different time intervals.
Materials and methods
Thirty discs were prepared from GI Fuji Triage and Embrace WetBond (EWB) resin
sealant. Sorption, solubility and color change were measured after different time intervals
(1 day, 1 week, and 1 month) of immersion of the specimens in different solution having
different pH. In addition 10 disks were assessed for fluoride release of both sealants after
being immersed in distilled water.
Results
EWB showed greater sorption in all media after 1 day and 1 week. GI sealant showed highest
water sorption after 1 week and this sorption decreased again after 1 month. GI showed greater
initial solubility in Pepsi and water after 1 day (P = 0.016). Pepsi showed higher solubility
for EWB while no significant effect was found for GI with different media. The color change
was greater for EWB when immersed in Pepsi and ginger. After 1-month storage, the color
change was the highest specially for Pepsi for both sealants. Fluoride release was greater
for GI compared to EWB.
Conclusion
Both sealants showed different physical performance depending on the type of immersion
media and time period. This is expected to affect their mechanical properties and hence their
clinical performance
