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Back to browse issues page CJDR 2017, 6(1): 22-28
Assessment of micro-leakage for light-cure glass ionomer and pro-root mineral trioxide aggregate as coronal barriers in intracoronal bleaching of endodontically treated teeth
Maryam Zare Jahromi, Mehrdad Barekatain, Niloufar Bonakdar Hashemi, Poorandokht Refaei
Postgraduate Student Department of Endodontics, Islamic Azad University, Isfahan (Khorasgan) Branch , p_refaei@yahoo.com
Abstract:   (198 Views)

Introduction: Cervical root resorption is one of the most important complications of intra coronal bleaching. A way of preventing this type of resorption is using a coronal barrier under the bleaching materials. The aim of this study was to compare the sealing ability of glass ionomer cement and Pro Root Mineral Trioxide Aggregate (MTA) as a coronal barrier in intra coronal bleaching.

Materials &Methods: In this study, 40 single-root maxillary anterior teeth were endodontically prepared and divided into two experimental groups (n= 15) and two positive and negative control groups (n=5). In the experimental groups, gutta percha was removed up to 3 mm below the cemento enamel junction (CEJ).RMGI and MTA were placed over gutta percha up to the level of CEJ. After a 24-hour incubation period, the bleaching agent (a mixture of sodium perborate and 30% hydrogen peroxide) was placed in the access cavities. The bleaching agents were replaced every 3 days over 9 days. Then, the access cavity was filled with 2% methylene blue for 48 hours. All samples were longitudinally sectioned and the dye penetration range was evaluated using a stereomicroscope. Data were statistically analyzed using Kruskal-Wallis and Mann–Whitney tests (α=0.05).

Results: Leakage mean indicated that there was a significant difference between these two groups and leakage was less in ProRoot than glass ionomer.

Conclusion: It seems that the MTA can provide a better coronal seal during the bleaching.

Keywords: Dental leakage, Glass ionomer cements, Tooth bleaching
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Type of Study: Original Article | Subject: Endodontics
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Zare Jahromi M, Barekatain M, Bonakdar Hashemi N, Refaei P. Assessment of micro-leakage for light-cure glass ionomer and pro-root mineral trioxide aggregate as coronal barriers in intracoronal bleaching of endodontically treated teeth . CJDR. 2017; 6 (1) :22-28
URL: http://cjdr.ir/article-1-211-en.html
Back to browse issues page Volume 6, Number 1 (2017)
مجله تحقیقات دندانپزشکی کاسپین Caspian Journal of Dental Research
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