Microleakage of Class II Posterior Composite Restorations with and Without use of Liners - A Comparative Study.

Autor:	Shekh TM; Department of Conservative Dentistry and Endodontics, Pacific Dental College and Research Centre, Udaipur, Rajasthan, India., Kumar P; Department of Dentistry, AIIMS, Jodhpur, Rajasthan, India., Kumar Y; Department of Conservative Dentistry and Endodontics, Darshan Dental College and Hospital, Udaipur, Rajasthan, India., Pathak K; Department of Dentistry, AIIMS, Jodhpur, Rajasthan, India., Punia SK; Department of Conservative Dentistry and Endodontics, Darshan Dental College and Hospital, Udaipur, Rajasthan, India., Patnana AK; Department of Dentistry, AIIMS, Rajkot, Gujarat, India.
Jazyk:	angličtina
Zdroj:	Indian journal of dental research : official publication of Indian Society for Dental Research [Indian J Dent Res] 2024 Apr 01; Vol. 35 (2), pp. 176-180. Date of Electronic Publication: 2024 Sep 14.
DOI:	10.4103/ijdr.ijdr_973_23
Abstrakt:	Aim: This study aims to compare the effect of liner on microleakage in Class II restorations at the occlusal and gingival levels when restored with a nanocomposite. Methodology: A total of 60 mandibular molars were selected and divided into three groups. Cavities in Group A were restored with posterior nanocomposite without liner, samples of Group B were restored with posterior nanocomposite with flowable composite liner and in Group C samples were restored with posterior nanocomposite with resin-modified glass ionomer cement (RMGIC) liner. Samples were stored at 37°C in 100% humidity for 14 days. Samples were subsequently immersed in 0.5% methylene blue dye and then placed under water for 15 mins. Teeth were sectioned mesiodistally with a diamond disc and examined under a stereomicroscope. Results: All the cavities exhibited dye penetration along the occlusal and gingival margins of the restored cavities. Group A showed maximum leakage compared to Groups B and C, which was statistically significant ( P = 0.001 and P < 0.0001). No significant difference in microleakage was observed between Groups B and C. Microleakage was more in gingival margins as compared to occlusal margins in all the groups. Conclusion: Based on the results of the present study, it may be concluded that the placement of liner beneath nanocomposite restoration results in a significant reduction in microleakage. (Copyright © 2024 Copyright: © 2024 Indian Journal of Dental Research.)
Databáze:	MEDLINE
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