J Interdiscip Dentistry
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ORIGINAL ARTICLE
Year : 2012  |  Volume : 2  |  Issue : 3  |  Page : 164-169

Comparative evaluation of microleakage in Class V cavities using various glass ionomer cements: An in vitro study


1 Department of Conservative Dentistry and Endodontics, Melaka Manipal Medical College, Manipal, Manipal University, Karnataka, India
2 Faculty of Dentistry, Melaka Manipal Medical College, Manipal, Manipal University, Karnataka, India

Correspondence Address:
Jaya Gupta
Faculty of Dentistry, Melaka Manipal Medical College, Manipal, Manipal University, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2229-5194.113245

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Aim: The study aimed to evaluate the microleakage of nano-filled resin-modified glass ionomer restorative (nano-filled RMGI) in comparison with that of conventional glass ionomer cement (CGIC), and resin-modified glass ionomer cement (RMGIC). Materials and Methods: Forty-five standardized Class V cavity preparations were prepared on sound extracted human molar teeth. Teeth were randomly assigned to three experimental groups of 15 teeth each and restored as follows: Group 1, CGIC; Group 2, RMGIC; and Group 3, nano-filled RMGI. The specimens were placed in a solution of 2% Rhodamine-B dye for 24 h at room temperature under vacuum. Staining along the tooth restoration interface was recorded. Results were analyzed using Kruskal-Wallis and Wilcoxon tests. Results: There were no statistically significant differences in dye leakage between all the three restorative materials for occlusal margins (P = 0.464). Group 3 showed significantly less microleakage compared to Group 1 (P = 0.007) and Group 2 (P = 0.040) at the gingival margins. The degree of microleakage in the gingival margins of each group was more than that found in occlusal margins. Conclusions: No material was able to completely eliminate microleakage at enamel, dentin, or cementum margin. Nano-filled RMGI showed least microleakage compared to other two cements at gingival margins. Clinical Relevance to Interdisciplinary Dentistry
  • Cervical lesions have been a restorative challenge for dentists for many years.
  • An interdisciplinary treatment approach is the appropriate choice in cases where there is gingival recession and cervical lesions.
  • Glass ionomer cements have been commonly used for restoration of cervical lesions.
  • Nano-filled resin-modified glass ionomer cement can be used for the restoration of cervical lesions, as it has a better marginal sealing ability compared to conventional glass ionomer and resin-modified glass ionomer cements.


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