In Vitro Comparison of the Push-Out Bond Strength of RetroMTA, OrthoMTA, and ProRoot MTA

Background and Aim: Different MTA brands may have different push-out bond strength (PBS) values in 10 minutes and 4 hours. Thus, this study aimed to compare the PBS of RetroMTA, OrthoMTA, and ProRoot MTA.   Materials and Methods: In this in vitro, experimental study, 54 dentin discs with 2 mm diamet...

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Main Authors: G Sedaghati (Author), E Asnaashari (Author), Z Khalilak (Author)
Format: Book
Published: Islamic Azad University, 2023-01-01T00:00:00Z.
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042 |a dc 
100 1 0 |a G Sedaghati  |e author 
700 1 0 |a E Asnaashari  |e author 
700 1 0 |a Z Khalilak  |e author 
245 0 0 |a In Vitro Comparison of the Push-Out Bond Strength of RetroMTA, OrthoMTA, and ProRoot MTA 
260 |b Islamic Azad University,   |c 2023-01-01T00:00:00Z. 
500 |a 2383-2754 
520 |a Background and Aim: Different MTA brands may have different push-out bond strength (PBS) values in 10 minutes and 4 hours. Thus, this study aimed to compare the PBS of RetroMTA, OrthoMTA, and ProRoot MTA.   Materials and Methods: In this in vitro, experimental study, 54 dentin discs with 2 mm diameter and a central lumen with 1.3 mm radius were used in each of the RetroMTA, OrthoMTA, and ProRoot MTA groups (18 discs for each group). The samples were wrapped in a moist gauze and incubated at 37°C and 100% humidity. The PBS was measured by a universal testing machine at a crosshead speed of 1 mm/minute after 10 minutes and 4 hours. The mode of failure was also categorized by using a stereomicroscope. The mean PBS of the three groups was compared using two-way ANOVA. The mode of failure was analyzed by the Chi-square test. Results: The interaction effect of time and material on PBS was not significant (P=0.227). At both time points, the PBS of the three groups was significantly different (P=0.001), and RetroMTA showed significantly higher PBS (P<0.014). However, the PBS of OrthoMTA and ProRoot MTA was not significantly different (P=0.695). The PBS of all materials at 4 hours was significantly higher than that at 10 minutes (P=0.001). Conclusion: RetroMTA was superior to ProRoot MTA and OrthoMTA regarding the PBS after 4 hours. 
546 |a EN 
690 |a biocompatible materials 
690 |a mineral trioxide aggregate 
690 |a dental bonding 
690 |a root canal therapy 
690 |a Dentistry 
690 |a RK1-715 
655 7 |a article  |2 local 
786 0 |n Journal of Research in Dental and Maxillofacial Sciences, Vol 8, Iss 1, Pp 1-10 (2023) 
787 0 |n http://jrdms.dentaliau.ac.ir/article-1-408-en.html 
787 0 |n https://doaj.org/toc/2383-2754 
856 4 1 |u https://doaj.org/article/890f1bc75a454f08a3b4f93b9ab7e0b5  |z Connect to this object online.