Profilometric study to compare the effectiveness of various finishing and polishing techniques on different restorative glass ionomer cements

Mallya, Laxmish and Acharya, Shashirashmi and Ballal, Vasudev and Ginjupalli, Kishore and *, Kundabala M and Thomas, Manuel S (2013) Profilometric study to compare the effectiveness of various finishing and polishing techniques on different restorative glass ionomer cements. Journal of Interdisciplinary Dentistry, 3 (2). pp. 86-90. ISSN 2229-5194

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Abstract

Objective: The aim of the present study was to evaluate the effect of various finishing and polishing techniques on the surface roughness of different types of glass ionomer (GI) restorative cements. Materials and Methods: Surface roughness of conventional, resin modified and nano‑ionomer cements was evaluated after different polishing regimens. Totally 20 specimens of 12 mm thick and 10 mm diameter were prepared using Teflon mold. Prepared specimens were subjected to polishing (n = 5) by Sof‑Lex discs, diamond finishing points and 30‑fluted carbide burs. Control specimens did not receive any polishing treatment, but mylar trip was used as matrix. Average surface roughness (Ra) in micrometers was measured using Surtronic 3 + profilometer. Results were analyzed using Kruskal‑Wallis and Mann‑Whitney test. Results: Control specimens (mylar strip) showed least Ra values followed by Sof‑Lex disc, carbide finishing burs and diamond finishing points with all types of glass ionomer cements used in the study. Among the GIs tested, Nano‑ionomer showed least Ra followed by resin‑modified GI and conventional GI. Conclusion: Mylar strip produced the smoothest surface on all the GIs tested. Nano‑Ionomer showed the best polish ability with least Ra values.

Item Type: Article
Uncontrolled Keywords: Conventional glass ionomer, nano‑ionomer, polishing, resin ionomer, surface roughness
Subjects: Dentistry > MCODS Mangalore > Conservative Dentistry
Depositing User: KMCMLR User
Date Deposited: 14 Feb 2014 06:57
Last Modified: 14 Feb 2014 06:57
URI: http://eprints.manipal.edu/id/eprint/138841

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