E-ISSN 2548-0839
An in Vitro Comparison of Coronal Discolouration Caused by White Mineral Trioxide Aggregate, Theracal, Calcium-Enriched Mixture and Biodentine [Eur Endod J]
Eur Endod J. 2022; 7(1): 47-51 | DOI: 10.14744/eej.2020.83584

An in Vitro Comparison of Coronal Discolouration Caused by White Mineral Trioxide Aggregate, Theracal, Calcium-Enriched Mixture and Biodentine

Zohreh Khalilak1, Ehsan Esnaashari2, Keivan Saati3, Delaram Bineshmarvasti1, Hazhir Yousefshahi1, Mahsima Nobakht1
1Department of Endodontics, Islamic Azad University of Medical Science, Dental School, Tehran, Iran
2Department of Endodontics, Islamic Azad University Faculty of Dentistry, Tehran, Iran
3Department of Operative Dentistry, Islamic Azad University, Dental Branch, Tehran, Iran

Objective: The use of calcium silicate-based cements has greatly increased in the past decade. This study compared coronal discolouration caused by white mineral trioxide aggregate (MTA), TheraCal (TC), calcium enriched mixture (CEM), and Biodentine (BD) on bovine enamel-dentin block.
Methods: In this in vitro, experimental study, enamel-dentin blocks (7x7x3.5 mm) were cut out of 60 extracted sound bovine central incisors. A cavity (2.5 mm diameter and 1 mm depth) was created at the center of each block with 1 mm distance from the labial surface. The blocks were randomly divided into four experimental groups (n=12) of MTA, CEM, BD, and TC and two groups of positive (blood) and negative (empty) controls. After filling cavities with experimental materials, the surfaces of the materials were covered with composite resin. The colour parameters were measured using a spectrophotometer, before (T0) and 1 week (T1), 1 month (T2), and 6 months (T3) after the application of the materials. The data was analysed using repeated measures ANOVA and the Kruskal-Wallis test.
Results: At 1 week and 1 month, a significant difference in ∆E was noted in the control groups compared to the experimental groups (P<0.001). The difference among the four cements was not significant (P=0.06) at 1 week but it was significant at 1 month. TC showed greater ∆E whereas BD showed lower ∆E in the six-month period (P<0.001). Colour change was significant over time in the MTA and TC groups (P<0.05).
Conclusion: TheraCal caused greater discolouration in the bovine tooth blocks after 6 months, which may make it inappropriate for application in the aesthetic zone. (EEJ-2020-07-169)

Keywords: Biodentine, calcium-enriched mixture cement, mineral trioxide aggregate, tooth discoloration, TheraCal

Zohreh Khalilak, Ehsan Esnaashari, Keivan Saati, Delaram Bineshmarvasti, Hazhir Yousefshahi, Mahsima Nobakht. An in Vitro Comparison of Coronal Discolouration Caused by White Mineral Trioxide Aggregate, Theracal, Calcium-Enriched Mixture and Biodentine. Eur Endod J. 2022; 7(1): 47-51

Corresponding Author: Delaram Bineshmarvasti
Manuscript Language: English
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