Effect of Smear Clear and Some Other Commonly Used Irrigants on Dislodgement Resistance of Mineral Trioxide Aggregate to Root Dentin

Overview

Journal J Clin Exp Dent

Specialty Dentistry

Date 2017 May 18

PMID 28512536

Citations 1

Authors

Mona Sadegh

Hasti Sohrabi

Mohamadjavad Kharazifard

Farzaneh Afkhami

Affiliations

Soon will be listed here.

Abstract

Background: This study aimed to assess the push-out bond strength of mineral trioxide aggregate (MTA) to root canal dentin after irrigation with Smear Clear in comparison with 2.5% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX) and saline as commonly used root canal irrigants.

Material And Methods: The coronal and mid-root areas of maxillary anterior teeth were horizontally sectioned into one-millimeter thick slices. The root canal lumen of dentinal slices was dilated using a diamond bur with 1.3 mm diameter. After the application of MTA, the samples were incubated in 100% humidity for 10 minutes and were then randomly divided into four groups (n=20) and immersed in Smear Clear, 2.5% NaOCl, 2% CHX and saline for 30 minutes. No irrigant was used for the control group (n=20). A wet cotton pellet was placed on the samples and after 48 hours of incubation, push-out bond strength was measured using a universal testing machine. The samples were evaluated under a stereomicroscope to determine the mode of failure. One-way ANOVA was used to assess statistical differences among the groups.

Results: The control group showed the highest bond strength with significant differences with other groups (<0.05). Among the experimental groups, the saline group had no significant difference with CHX (P=0.09) but it had significant differences with Smear Clear and NaOCl groups (<0.05). No significant difference in bond strength to MTA was noted after irrigation with Smear Clear, CHX and NaOCl (>0.05). Other pairwise comparisons showed no significant difference (>0.05).

Conclusions: Irrigation with Smear Clear, CHX and NaOCl did not cause a significant change in bond strength of MTA to dentin. Root Canal Irrigants, push-out, Mineral Trioxide Aggregate, dentin.

Citing Articles

An in-vitro assessment of the irrigants and irrigation protocols effect on the ProRoot MTA marginal leakage in the furcal perforations.

Dayyoub G, Al-Tayyan M, Alsayed Tolibah Y, Achour H Sci Rep. 2025; 15(1):6319.

PMID: 39984576 PMC: 11845494. DOI: 10.1038/s41598-025-90841-3.

How Irrigants Affect Mineral Trioxide Aggregate (MTA) Sealing in Furcal Perforations: An In Vitro Study.

Dayyoub G, Al-Tayyan M, Alsayed Tolibah Y, Achour H Cureus. 2024; 16(10):e70690.

PMID: 39493031 PMC: 11530254. DOI: 10.7759/cureus.70690.

References

da Silva L, Sanguino A, Rocha C, Leonardo M, Silva R . Scanning electron microscopic preliminary study of the efficacy of SmearClear and EDTA for smear layer removal after root canal instrumentation in permanent teeth. J Endod. 2008; 34(12):1541-4. DOI: 10.1016/j.joen.2008.08.007. View

Formosa L, Mallia B, Camilleri J . Push-out bond strength of MTA with antiwashout gel or resins. Int Endod J. 2013; 47(5):454-62. DOI: 10.1111/iej.12169. View

Dunavant T, Regan J, Glickman G, Solomon E, Honeyman A . Comparative evaluation of endodontic irrigants against Enterococcus faecalis biofilms. J Endod. 2006; 32(6):527-31. DOI: 10.1016/j.joen.2005.09.001. View

Smith J, Loushine R, Weller R, Rueggeberg F, Whitford G, Pashley D . Metrologic evaluation of the surface of white MTA after the use of two endodontic irrigants. J Endod. 2007; 33(4):463-7. DOI: 10.1016/j.joen.2006.12.002. View

Collares F, Portella F, Rodrigues S, Celeste R, Leitune V, Samuel S . The influence of methodological variables on the push-out resistance to dislodgement of root filling materials: a meta-regression analysis. Int Endod J. 2015; 49(9):836-849. DOI: 10.1111/iej.12539. View

Camilleri J, Montesin F, Brady K, Sweeney R, Curtis R, Pitt Ford T . The constitution of mineral trioxide aggregate. Dent Mater. 2005; 21(4):297-303. DOI: 10.1016/j.dental.2004.05.010. View

Basrani B, Manek S, Sodhi R, Fillery E, Manzur A . Interaction between sodium hypochlorite and chlorhexidine gluconate. J Endod. 2007; 33(8):966-9. DOI: 10.1016/j.joen.2007.04.001. View

Shokouhinejad N, Nekoofar M, Iravani A, Kharrazifard M, Dummer P . Effect of acidic environment on the push-out bond strength of mineral trioxide aggregate. J Endod. 2010; 36(5):871-4. DOI: 10.1016/j.joen.2009.12.025. View

Hong S, Bae K, Baek S, Kum K, Shon W, Lee W . Effects of root canal irrigants on the push-out strength and hydration behavior of accelerated mineral trioxide aggregate in its early setting phase. J Endod. 2010; 36(12):1995-9. DOI: 10.1016/j.joen.2010.08.039. View

10.

Yan P, Peng B, Fan B, Fan M, Bian Z . The effects of sodium hypochlorite (5.25%), Chlorhexidine (2%), and Glyde File Prep on the bond strength of MTA-dentin. J Endod. 2006; 32(1):58-60. DOI: 10.1016/j.joen.2005.10.016. View

11.

Bryce G, ODonnell D, Ready D, Ng Y, Pratten J, Gulabivala K . Contemporary root canal irrigants are able to disrupt and eradicate single- and dual-species biofilms. J Endod. 2009; 35(9):1243-8. DOI: 10.1016/j.joen.2009.05.034. View

12.

Cecchin D, de Almeida J, Gomes B, Zaia A, Ferraz C . Effect of chlorhexidine and ethanol on the durability of the adhesion of the fiber post relined with resin composite to the root canal. J Endod. 2011; 37(5):678-83. DOI: 10.1016/j.joen.2011.01.007. View

13.

Sluyk S, Moon P, Hartwell G . Evaluation of setting properties and retention characteristics of mineral trioxide aggregate when used as a furcation perforation repair material. J Endod. 1998; 24(11):768-71. DOI: 10.1016/S0099-2399(98)80171-4. View

14.

Sobhnamayan F, Adl A, Shojaee N, Gavahian S . The effect of chlorhexidine on the push-out bond strength of calcium-enriched mixture cement. Iran Endod J. 2015; 10(1):59-63. PMC: 4293583. View

15.

Loxley E, Liewehr F, Buxton T, McPherson 3rd J . The effect of various intracanal oxidizing agents on the push-out strength of various perforation repair materials. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003; 95(4):490-4. DOI: 10.1067/moe.2003.32. View

16.

Nagas E, Cehreli Z, Uyanik M, Vallittu P, Lassila L . Effect of several intracanal medicaments on the push-out bond strength of ProRoot MTA and Biodentine. Int Endod J. 2015; 49(2):184-8. DOI: 10.1111/iej.12433. View

17.

Pascon F, Kantovitz K, Sacramento P, Nobre-Dos-Santos M, Puppin-Rontani R . Effect of sodium hypochlorite on dentine mechanical properties. A review. J Dent. 2009; 37(12):903-8. DOI: 10.1016/j.jdent.2009.07.004. View

18.

Celik D, Er K, Serper A, Tasdemir T, Ceyhanli K . Push-out bond strength of three calcium silicate cements to root canal dentine after two different irrigation regimes. Clin Oral Investig. 2013; 18(4):1141-1146. DOI: 10.1007/s00784-013-1082-4. View

19.

Uyanik M, Nagas E, Sahin C, Dagli F, Cehreli Z . Effects of different irrigation regimens on the sealing properties of repaired furcal perforations. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009; 107(3):e91-5. DOI: 10.1016/j.tripleo.2008.10.024. View

20.

Pane E, Palamara J, Messer H . Critical evaluation of the push-out test for root canal filling materials. J Endod. 2013; 39(5):669-73. DOI: 10.1016/j.joen.2012.12.032. View