Evaluation of Push-out Bond Strength of a Resin Sealer to Dentin after a Final Flush of Three Irrigants
Shubha Choudhury, Sunita Shivanand, Anand C Patil, Sneha A Patil, Preeti K Doddwad, Chetan Patil
Citation Information :
Choudhury S, Shivanand S, Patil AC, Patil SA, Doddwad PK, Patil C. Evaluation of Push-out Bond Strength of a Resin Sealer to Dentin after a Final Flush of Three Irrigants. J Contemp Dent Pract 2020; 21 (9):982-985.
Aim: To evaluate the push-out bond strength of resin-based sealer to root dentin after a final flush of three different irrigants. Materials and methods: Thirty extracted human mandibular premolars were sectioned 4 mm below the cement–enamel junction and 60 horizontal disks of 2 mm from middle one-third of the root were prepared. The disks were immersed in 3% sodium hypochlorite for 1 minute, and after drying the disks, they were finally flushed with the following irrigants: group I—Chitosan solution, group II—Morinda citrifolia juice (MCJ), and group III—ethylenediaminetetraacetic acid (EDTA). The disks were filled with AH Plus sealer, and after 7 days, the disks were subjected to push-out bond strength using a universal testing machine. Results: EDTA had the highest push-out bond strength followed by MCJ and then chitosan. Conclusion: Chitosan and MCJ can be used as alternative irrigants as a final flush during the cleaning and shaping of the root canals. Clinical significance: EDTA, chitosan solution, and MCJ are efficient in smear layer removal which thereby increases better sealer penetration and prevents the dislocation of obturating materials.
Violich DR, Chandler NP. The smear layer in endodontics- a review. Int Endod J 2010;43(1):2–15. DOI: 10.1111/j.1365-2591.2009.01627.x.
Pimenta JA, Zaparolli D, Pecora JD, et al. Chitosan: effect of a new chelating agent on the microhardness of root dentin. Braz Dent J 2012;23(3):212–217. DOI: 10.1590/s0103-64402012000300005.
Shokouhinejad N, Hoseini A, Gorjestani H, et al. The effect of different irrigation protocols for smear layer removal on bond strength of a new bioceramic sealer. Iranian Endod J 2013;8(1):10–13.
Silva PV, Guedes DF, Nakadi FV, et al. Chitosan: a new solution for removal of smear layer after root canal instrumentation. Int Endod J 2013;46(4):332–338. DOI: 10.1111/j.1365-2591.2012.02119.x.
Akncbay H, Senel S, Ay ZY. Application of chitosan gel in the treatment of chronic periodontitis. J Biomed Mater Res Part B, Appl Biomater 2007;80(2):290–296. DOI: 10.1002/jbm.b.30596.
Senel S, Ikinci G, Kas S, et al. Chitosan films and hydrogels of chlorehexidinegluconate for oral mucosal delivery. Int J Pharma 2000;193(2):197–203. DOI: 10.1016/s0378-5173(99)00334-8.
Ballal NV, Shavi GV, Kumar R, et al. In vitro sustained release of calcium ions and pH maintenance from different vehicles containing calcium hydroxide. J Endod 2010;36(5):862–866. DOI: 10.1016/j.joen.2009.12.021.
Murray PE, Farber RM, Namerow KN, et al. Evaluation of Morinda citrifolia as an endodontic irrigant. J Endod 2008;34(1):66–70. DOI: 10.1016/j.joen.2007.09.016.
Madhusudhana K, Satyavathi E, Lavanya A, et al. Comparison of the effect of chitosan and Morinda citrifolia on smear layer removal: an in vitro study. Sch J DentSci 2015;2(2A):132–136.
Verma D, Taneja S, Kumari M. Efficacy of different irrigation regimes on the push-out bond strength of various resin-based sealers at different root levels: an in vitro study. J Conserv Dent 2018;21(2):125–129. DOI: 10.4103/JCD.JCD_337_16.
Crumpton BJ, Godell GG, McClanahan SB. Effects on smear layer and debris removal with varying volumes of 17% REDTA after rotary instrumentation. J Endod 31(7):536–538. DOI: 10.1097/01.don.0000148871.72896.1d.
Sayin TC, Serper A, Cehreli ZC, et al. The effect of EDTA, EGTA, EDTAC and tetracycline-Hcl with and without subsequent NaOCl treatment on the microhardness of root canal dentin. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2007;104(3):418–424. DOI: 10.1016/j.tripleo.2007.03.021.
Fernández ML, Pérez GG, Villagómez, II MO, et al. Lara in vitro study of erosion caused by EDTA on root canal dentin. 2012;16(1):8–13.
Saghiri MA, Garcia-Godoy F, Asgar K, et al. The effect of Morinda citrifolia juice as an endodontic irrigant on smear layer and microhardness of root canal dentin. Oral Science Int 2013;10(2):53–57. DOI: 10.1016/S1348-8643(12)00073-0.
Zhang J, Xia W, Liu P, Cheng Q, et al. Chitosan modification and pharmaceutical/biomedical applications. Mar Drugs 2010;8(7): 1962–1987. DOI: 10.3390/md8071962.
Shrestha A, Kishen A. The effect of tissue inhibitors on the antibacterial activity of chitosan nanoparticles and photodynamic therapy. J Endod 2012;38(9):1275–1278. DOI: 10.1016/j.joen.2012. 05.006.
Rhazi M, Desbrières J, Tolaimate A, et al. Influence of the nature of the metal ions on the complexation with chitosan. application to the treatment of liquid waste. Eur Polym J 2002;38(8):1523–1530. DOI: 10.1016/S0014-3057(02)00026-5.