Background: Glass ionomer cements are widely used in pediatric practice due to their advantage of fluoride release and chemical bond to tooth structure.Adherence of 2005-2014 the restorative material to the cavity walls is one of the most important characteristic for it to be proven as an ideal material as it prevents microleakage.Aims and Objectives: This study was aimed at evaluating the microleakage of nanofilled resin-modified glass ionomer cement compared with the conventional and resin-modified glass ionomer cements.
Materials and Methods: Standard class V cavities of size 3 mm x 2 mm x 2 mm were made on a total of 30 extracted teeth and restored with the conventional glass ionomer, resin-modified glass ionomer or nanoionomer.After thermocycling, teeth were immersed in 0.5% methylene blue dye for 24 h.
They Zanussi ZCV46250BA Electric Cooker - Ceramic Hob Black A/A Rated 55cm were then sectioned buccolingually.Microleakage was assessed for the occlusal and gingival walls using a compound microscope by two examiners independently.Results: Nanoionomer demonstrated the least microleakage, with a mean score of 1.
3, compared with the resin-modified glass ionomer (score of 3.2) and conventional glass ionomer cement (score 2.6).
Conclusion: Nanoionomer exhibited adequate resistance to microleakage and thus may prove better than conventional or resin-modified glass ionomers.