Amish Diwanji1, Vineet Dhar2, Ruchi Arora3, A Madhusudan4, Ambika Singh Rathore5
1 Department of Pedodontics and Preventive Dentistry, Faculty of Dental Science, Nadiad, Gujarat, India
2 Department of Pediatric Dentistry, University of Maryland School of Dentistry, Washington DC, USA
3 Department of Pedodontics and Preventive Dentistry, Darshan Dental College, Udaipur, India
4 Department of Oral and Maxillofacial Pathology, Pacific Dental College, Udaipur, India
5 Department of Pedodontics and Preventive Dentistry, Govt. Dental College, Jaipur, Rajasthan, India
Purpose: The aim of this study was to compare the microleakage of glass ionomers (conventional and resin modified) with that of recently introduced nanoionomers. Materials and Methods: Standardized class I and class V cavities were prepared on 120 young permanent teeth. Samples were equally divided into group I (class I restorations) and group II (class V restorations), and further divided into subgroups. The subgroups were restored with Fuji IX, Fuji II LC, and newly introduced Ketac™ N 100 (KN 100). Samples were thermocycled and submerged in Acridine dye for 24 h. Samples were sectioned to view under fluorescent microscope and marginal leakage was evaluated by Chi-square and Kruskal – Wallis test. Results: Fuji IX showed the maximum leakage, followed by LC II and the least was observed in KN 100. In class I restorations, there was significant difference while comparing Fuji IX with Fuji LC II and KN 100 and nonsignificant difference between LC II and KN100. In class V restorations, Fuji IX and KN100, KN 100 and LC II showed significant difference. Fuji IX and LC II showed nonsignificant difference. Conclusion: Within the limitations of this study, Fuji IX showed the maximum microleakage. KN 100 showed minimum leakage, better sealing ability, and was more consistent.
Keywords: Fluorescent microscope, microleakage, nanoionomer