Abstract
Aim: To evaluate the resistance of the union between a glass fiber post and radicular dentine after cleaning the root with 17% EDTA and filling with different endodontic cements. Methods: Forty uniradicular bovine incisors were removed to obtain root lengths of 18 mm. Endodontic treatment was performed on all roots using different filling cements (zinc oxide and eugenol-based, OZE; cement based on epoxy resin, AH) and cleaning solutions (saline, SA or EDTA), which made it possible to obtain four groups: OZESA, OZEEDTA, AHSA and AHEDTA. Subsequently, 12 mm of filling material was removed from the roots, and they were prepared to receive fiber posts luted with resin cement. To execute the mechanical cycles (2x106 cycles, 90 N, 4 Hz), coronal reconstruction was performed with a silicon matrix. The roots were then sliced (2-mm thick) to perform the push-out test. The results were analyzed using analysis of variance (one factor and two factors) and Tukey’s test (α=0,05). Results: Bond strength (Mpa) was significantly higher for OZEEDTA (9,18) and AHEDTA (8,70) than for OZESA (6,06) AHSA (8,7). OZEEDTA also presented the highest values in the cervical region (15,18) but was significantly lower in the apical region (2,99). However, AHEDTA had a homogeneous bond strength in all thirds. Conclusion: Regardless of the endodontic cement used, EDTA was used as an irrigating solution, culminating in a higher bond strength between the glass fiber post and dentin.
References
Ferreira R, Prado M, Soares AJ, Zaia AA, Souza-Filho FJ. Influence of using clinical microscope as auxiliary to perform mechanical cleaning of post space: a bond strength analysis. J Endod. 2015 Aug;41(8):1311-6. doi: 10.1016/j.joen.2015.05.003.
Monticelli F, Grandini S, Goracci C, Ferrari M. Clinical behavior of translucent-fiber posts: A 2- year prospective study. Int J Prosthodont. 2003 Nov-Dec;16(6): 593-6.
Makade CS, Meshram GK, Warhadpande M, Patil PG. A comparative evaluation of fracture resistance of endodonticaly treated teeth restored with different post core systems – an in vitro study. J Adv Prosthodont. 2011 Jun;3(2):90-5. doi: 10.4047/jap.2011.3.2.90.
Soares IMV, Crozeta BM, Pereira RD, Silva RG, da Cruz-Filho AM. Influence of endodontic sealers with different chemical compositions on bond strength of the resin cement/glass fiber post junction to root dentin. Clin Oral Investig. 2020 Oct;24(10):3417-3423. doi: 10.1007/s00784-020-03212-9.
Ayub, KV; Ebeling, LC; Zavanelli, AC; Mazaro, JVQ. [Tensile strength evaluation of prefabricated posts: literature review]. Rev Odontol Araçatuba. 2009 Jul-Dec;30(2):50-6. Portuguese.
Malferrari S, Monaco C, Scotti R. Clinical evaluation of teeth restored with quartz fiber reinforced epoxy resin posts. Int J Prosthodont. 2003 Jan-Feb;16(1):39-44.
Guldener KA, Lanzrein CL, Siegrist Guldener BE, Lang NP, Ramseier CA, Salvi GE. Long-term clinical outcomes of endodontically treated teeth restored with or without fiber post-retained single-unit restorations. J Endod. 2017 Feb;43(2):188-93. doi: 10.1016/j.joen.2016.10.008.
Perdigão J, Gomes G, Augusto V. The effect of dowel space on the bond strengths of fiber posts. J Prosthodont. 2007 May-Jun;16(3):154-64. doi: 10.1111/j.1532-849X.2006.00166.x.
Skupien JA, Sarkis-Onofre R, Cenci MS, Moraes RR, Pereira-Cenci T. A systematic review of factors associated with the retention of glass fiber posts. Braz Oral Res. 2015;29:S1806-83242015000100401. doi: 10.1590/1807-3107BOR-2015.vol29.0074.
Hagge MS, Wong RD, Lindemuth JS. Retention, of posts luted with phosphate monomerbased composite cement in canals obturated using a eugenol sealer. Am J Dent. 2002 Dec;15(6):378-82.
Tjan AHL, Nemetz H. Effect of eugenol containing endodontic sealer on retention of prefabricated posts luted with an adhesive composite resin cement. Quintessence Int. 1992 Dec;23(12):839-44.
Hagge MS, Wong RDM, Lindemuth JS. Effect of three root canal sealers on the retentive strength of endodontic post luted with a resin cement. Int Endod J. 2002 Apr;35(4):372-8. doi: 10.1046/j.0143-2885.2001.00493.x.
Vilas-Boas DA, Grazziotin-Soares R, Ardenghi DM, Bauer J, de Souza PO, de Miranda Candeiro GT, et al. Effect of different endodontic sealers and time of cementation on push-out bond strength of fiber posts. Clin Oral Investig. 2018 Apr;22(3):1403-9. doi: 10.1007/s00784-017-2230-z.
Miranda JS, Marques EA, Landa FV, Leite APP, Leite FPP. [Effect of three final irrigation protocols on the smear layer removal from the middle third of endodontically treated teeth: a qualitative analysis]. Dental Press Endod. 2017 May-Aug;7(2):72-7. doi: 10.14436/2358-2545.7.2.072-077.oar.
Vangala A, Hegde V, Sathe S, Dixit M, Jain P. Effect of irrigating solutions used for postspace treatment on the push-out bond strength of glass fiber posts. J Conserv Dent. 2016 Jan-Feb;19(1):82-6. doi: 10.4103/0972-0707.173206.
Gu XH, Mao CY, Liang C, Wang HM, Kern M. Does endodontic post space irrigation affect smear layer removal and bonding effectiveness? Eur J Oral Sci. 2009 Oct;117(5):597-603. doi: 10.1111/j.1600-0722.2009.00661.x.
Mao H, Chen Y, Yip KH, Smales RJ. Effect of three radicular dentine treatments and two luting cements on the regional bond strength of quartz fibre posts. Clin Oral Investig. 2011 Dec;15(6):869-78. doi: 10.1007/s00784-010-0453-3.
Kul E, Yeter KY, Aladag LI, Ayrancı LB. Effect of different post space irrigation procedures on the bond strength of a fiber post attached with a self-adhesive resin cement. J Prosthet Dent. 2016 May;115(5):601-5. doi: 10.1016/j.prosdent.2015.10.010.
Calt S, Serper A. Time-dependent effects of EDTA on dentin structures. J Endod. 2002 Jan;28(1):17-9. doi: 10.1097/00004770-200201000-00004.
Coniglio I, Magni E, Goracci C, Radovic I, Carvalho CA, Grandini S, et al. Post space cleaning using a new nickel titanium endodontic drill combined with different cleaning regimens. J Endod. 2008 Jan;34(1):83-6. doi: 10.1016/j.joen.2007.10.019.
Zhang L, Huang L, Xiong Y, Fang M, Chen J-H, Ferrari M. Effect of post-space treatment on retention of fiber posts in different root regions using two self-etching systems. Eur J Oral Sci. 2008 Jun;116(3):280-6. doi: 10.1111/j.1600-0722.2008.00536.x.
Bitter K, Eirich W, Neumann K, Weiger R, Krastl G. Effect of cleaning method, luting agent and preparation procedure on the retention of fibre posts. Int Endod J. 2012 Dec;45(12):1116-26. doi: 10.1111/j.1365-2591.2012.02081.x.
Junqueira RB, de Carvalho RF, Marinho CC, Valera MC, Carvalho CAT. Influence of glass fiber post length and remaining dentine thickness on the fracture resistance of root filled teeth. Int Endod J. 2017 Jun;50(6):569-577. doi: 10.1111/iej.12653.
Freitas TL, Vitti RP, Miranda ME, Brandt WC. Effect of glass fiber post adaptation on push-out bond strength to root dentin. Braz Dent J. 2019 Jul 22;30(4):350-5. doi: 10.1590/0103-6440201902491.
Dibaji F, Mohammadi E, Farid F, Mohammadian F, Sarraf P, Kharrazifard MJ. The effect of BC sealer, AH-Plus and Dorifill on push-out bond strength of fiber post. Iran Endod J. 2017 Fall;12(4):443-8. doi: 10.22037/iej.v12i4.15863.
Rosa RA, Barreto MS, Moraes RA, Broch J, Bier CAS, So MVR, et al. Influence of endodontic sealer composition and time of fiber pos t cementat ion on sealer adhesiveness to bovine root dentin. Braz Dent J. 2013;24(3):241-6. doi: 10.1590/0103-6440201302154.
Baldissera P, Zicari F, Valandro LF, Scotti R. Effect of root canal treatments on quartz fiber posts bonding to root dentin. J Endod. 2006 Oct;32(10):985-8. doi: 10.1016/j.joen.2006.04.013.
Altmann ASP; Leitune, VCB; Collares FM. Influence of eugenol-based sealers on push-out bond strength of fiber post luted with resin cement: systematic review and meta-analysis. J Endod. 2015 Sep;41(9):1418-23. doi: 10.1016/j.joen.2015.05.014.
Carvalho MFF, Leijôto-Lannes ACN, Rodrigues MCN, Nogueira LC, Ferraz NKL, Moreira AN, Yamauti M, et al. Viability of bovine teeth as a substrate in bond strength tests: a systematic review and meta-analysis. J Adhes Dent. 2018;20(6):471-9. doi: 10.3290/j.jad.a41636.
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Copyright (c) 2022 Luciana Arruda Mendes de Paula, Lohara Campos de Abreu Reis, Jean Soares Miranda, Francielle Silvestre Verner, Rafael Binato Junqueira, Rodrigo Furtado de Carvalho