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Indian J Dent Res. 2014 Nov-Dec;25(6):692-7. doi: 10.4103/0970-9290.152163.

Comparison of physical and mechanical properties of mineral trioxide aggregate and Biodentine.

Author information

1
Department of Conservative Dentistry and Endodontics, Maulana Azad Institute of Dental Sciences, MAMC Complex, Bahadur Shah Zafar Marg, New Delhi, India.

Abstract

BACKGROUND:

Mineral trioxide aggregate (MTA) fulfills many of the ideal properties of the root-end filling material. However, its low cohesive property often makes it difficult to handle. Biodentine, new calcium-silicate-based cement has been developed to improve some MTA drawbacks such as its difficult handling property and long-setting time.

AIM:

The objective of this study was to compare at different times the microleakage of roots filled with Biodentine and white MTA (WMTA)-Angelus and to investigate their setting time, handling properties and compressive strength.

MATERIALS AND METHODS:

Root canals of single-rooted teeth were instrumented, filled with either Biodentine or WMTA-Angelus (n=15 each) with two positive and two negative control roots and stored at 37°C. Sealing was assessed at 4, 24 h, 1, 2, 4, 8, and 12 weeks by a fluid filtration method. The initial setting time, handling properties, and compressive strength of the test groups were investigated by a vicat needle, questionnaire of operational hand feel, and universal instron machine, respectively.

RESULTS:

Significant differences in microleakage were found between two groups at 4-h and 24 h (P<0.05) and no difference at 1, 2, 4, 8, and 12 weeks. No significant difference was seen in the setting time of MTA-Angelus and Biodentine, though latter was found to have better handling consistency. Compressive strength of Biodentine was significantly higher than MTA-Angelus.

CONCLUSIONS:

The results suggest that the new calcium-silicate-based endodontic cement provides improvement in sealing ability as well as clinical manageability of dental filling materials.

PMID:
25728098
DOI:
10.4103/0970-9290.152163
[Indexed for MEDLINE]
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