| ORIGINAL ARTICLE |
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| Year : 2017 | Volume
: 9
| Issue : 5 | Page : 121-126 |
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Effect of biomineralization ability on push-out strength of proroot mineral trioxide aggregate, mineral trioxide aggregate branco, and calcium phosphate cement on dentin: An In vitro evaluation
Vanita D Revankar1, MS Prathap2, K Harish Kumar Shetty2, Azmin Shahul3, K Sahana4
1 Department of Conservative Dentistry and Endodontics, Vinayaka Mission's Sankarachariyar Dental College, Salem, Tamil Nadu, India
2 Department of Conservative Dentistry and Endodontics, Yenepoya Dental College, Mangalore, Karnataka, India
3 Department of Conservative Dentistry and Endodontics, Kannur Dental College, Kannur, Kerala, India
4 Department of Oral Medicine and Radiology, AJ Shetty Dental College, Mangalore, Karnataka, India
Correspondence Address:
Vanita D Revankar
Department of Conservative Dentistry and Endodontics, Vinayaka Mission's Sankarachariyar Dental College, Salem, Tamil Nadu
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/jpbs.JPBS_120_17
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Context: Biomineralization is a process which leads to the formation of an interfacial layer with tag-like structures at the cement-dentin interface. It is due to interaction of mineral trioxide aggregate (MTA) and Portland cement with dentin in phosphate-buffered solution (PBS). This study is aimed to evaluate the effect of influence of biomineralization process on push-out bond strength of ProRoot MTA (Dentsply Tulsa Dental, Tulsa, OK, USA), MTA Branco (Angelus Soluc¸o˜es Odontolo´gicas, Londrina, PR, Brazil) and calcium phosphate cement (BioGraft CPC). Aim: The aim of this study was to evaluate the effect of biomineralization process on the push-out strength of ProRoot MTA, MTA Branco, and CPC after mixing with 0.2% chlorhexidine gluconate solution (0.2% CHX) and 2% lidocaine solution (2% LA) on the bond strength of MTA-dentin. Materials and Methods: Dentin discs with uniform cavities were restored with ProRoot MTA, MTA Branco, and calcium phosphate cement after mixing with 0.2% CHX solution and 2% lidocaine solution. The samples were uniformly distributed into two groups. Experimental group being immersed in PBS solution and control group being immersed in saline for 2 months. Instron testing machine (Model 4444; Instron Corp., Canton, MA, USA) was used to determine the bond strength. Statistical Analysis Used: A two-way analysis of variance and post hoc analysis by Bonferroni test. Results: All samples immersed in experimental group displayed a significantly greater resistance to displacement than that observed for the samples in control group (P < 0.05). MTAs displayed a significantly greater resistance to displacement than calcium phosphate cements. Conclusion: The main conclusion of this study was that the push-out bond strength of the cements, mainly the MTA groups, was positively influenced by the biomineralization process.
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