Revista de Odontologia da UNESP
https://revodontolunesp.com.br/article/doi/10.1590/1807-2577.03219
Revista de Odontologia da UNESP
Original Article

Glass fiber post treatment – does it influence resin cement bond strength?

Pinos de fibra de vidro pós tratamento - influencia a resistência de união do cimento resinoso?

Marciano de Freitas BORGES; Gabriela Simões TEIXEIRA; Anelise Fernandes MONTAGNER; Alexandre Henrique SUSIN

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Abstract

Abstract: Introduction: Glass-fiber posts are used in order to improve the retention of restorations in endodontically treated teeth.

Objective: To evaluate the bond strength of glass-fiber posts submitted to different surface treatments and cemented to the root canal dentin with self-adhesive resin cement.

Material and method: Thirty roots of human canines were prepared and divided according to two factors: surface treatments (silane, 35% hydrogen peroxide, or sodium bicarbonate) and root thirds (cervical and middle thirds). The glass-fiber posts were cemented with self-adhesive resin cement (RelyX U200). After 24 h, the specimens were prepared for microtensile bond strength test (hourglass format), fracture pattern and micromorphological assessment by scanning electronic microscopy, in order to measure the cement line.

Result: The data (MPa and µm) were submitted to two-way ANOVA and Tukey’s test (α = 5%). The surface treatments influenced the bond strength of the posts cemented with self-adhesive resin cement (p<0.00). The mean bond strength (standard deviations) differed according to the region of root dentin (p<0.00): the cervical region (Control: 19.16MPa (3.71); Silane: 25.65MPa (4.04); Hydrogen peroxide: 24.43MPa (3.16); Sodium bicarbonate: 37.42MPa (8.27)) showed higher bond strength values than the middle third of the root (Control: 14.66MPa (4.65); Silane: 12.52MPa (5.03); Hydrogen peroxide: 10.64MPa (3.33); Sodium bicarbonate: 10.87MPa (2.49)).

Conclusion: Treatment of the glass-fiber post surface with chemical and physical agents increased the bond strength of the cement-post-dentin interface in the cervical third and the treatment with Sodium bicarbonate showed better results in bond strength.

Keywords

Resin cement, fiber post, surface treatment, adhesion, dentin

Resumo

Resumo: Introdução: Pinos de fibra de vidro são utilizados para melhorar a retenção das restaurações em dentes tratados endodonticamente.

Objetivo: Avaliar a resistência de união de pinos de fibra de vidro submetidos a diferentes tratamentos superficiais e cimentados à dentina radicular com cimento resinoso autoadesivo.

Material e método: trinta raízes de caninos humanos foram preparadas e divididas de acordo com dois fatores: tratamentos de superfície (silano, peróxido de hidrogênio a 35% ou bicarbonato de sódio) e o terço radicular (cervical e médio). Os pinos de fibra de vidro foram cimentados com cimento resinoso autoadesivo (RelyX U200) e foram divididos de acordo com duas regiões: cervical e terço médio. Após 24 horas, foram preparados para microtração (formato de ampulheta), padrão de fratura e avaliação micromorfológica por microscopia eletrônica de varredura, para medir a linha de cimento.

Resultado: Os dados (MPa e µm) foram submetidos à ANOVA two-way e teste de Tukey (α = 5%). Os tratamentos de superfície influenciaram a resistência de união dos pinos. A média da resistência de união (desvio padrão) diferiu de acordo com a região da dentina radicular (p <0,00): a região cervical (Controle: 19,16Mpa (3.71); Silano: 25,65MPa (4.04); Peróxido de hidrogênio: 24,43MPa (3.16); Bicarbonato de sódio: 37,42MPa (8.27)) apresentou valores de resistência a raiz (Controle: 14,66MPa (4.65); Silano: 12,52MPa (5.03); peróxido de hidrogênio: 10,64MPa (3.33); bicarbonato de sódio: 10,87MPa (2.49)).

Conclusão: O tratamento com agentes químicos e físicos aumentou a resistência de união da interface cimento-pino-dentina no terço cervical e o tratamento com bicarbonato de sódio apresentou melhores resultados na resistência de união.
 

Palavras-chave

Cimento resinoso, pino de fibra, tratamento de superfície, adesão, dentina

References

Van Meerbeek B, De Munck J, Yoshida Y, Inoue S, Vargas M, Vijay P, et al. Buonocore memorial lecture. Adhesion to enamel and dentin: current status and future challenges. Oper Dent. 2003 May-Jun;28(3):215-35. PMid:12760693.

Nishiyama N, Komatsu K, Fukai K, Nemoto K, Kumagai M. Influence of adsorption characteristics of silane on the hydrolytic stability of silane at the silica-matrix interface. Composites. 1995 Apr;26(4):309-13. http://dx.doi.org/10.1016/0010-4361(95)93674-9.

Menezes MS, Faria-e-Silva AL, Silva FP, Reis GR, Soares CJ, Stape TH, et al. Etching a fiber post surface with high-concentration bleaching agents. Oper Dent. 2014 Jan-Feb;39(1):e16-21. http://dx.doi.org/10.2341/12-270-L. PMid:23848068.

Coelho CS, Biffi JC, Silva GR, Abrahão A, Campos RE, Soares CJ. Finite element analysis of weakened roots restored with composite resin and posts. Dent Mater J. 2009 Nov;28(6):671-8. http://dx.doi.org/10.4012/dmj.28.671. PMid:20019417.

Drummond JL. In vitro evaluation of endodontic posts. Am J Dent. 2000 May;13(Spec No):5B-8B. PMid:11763868.

Valandro LF, Yoshiga S, Melo RM, Galhano GA, Mallmann A, Marinho CP, et al. Microtensile bond strength between a quartz fiber post and a resin cement: effect of post surface conditioning. J Adhes Dent. 2006 Apr;8(2):105-11. PMid:16708722.

Gonçalves AP, Ogliari AO, Jardim PS, Moraes RR. Chemical cleaning agents and bonding to glass-fiber posts. Braz Oral Res. 2013 Jan-Fev;27(1):70-2. http://dx.doi.org/10.1590/S1806-83242013000100012. PMid:23306628.

Tay FR, Pashley DH. Monoblocks in root canals: a hypothetical or a tangible goal. J Endod. 2007 Apr;33(4):391-8. http://dx.doi.org/10.1016/j.joen.2006.10.009. PMid:17368325.

Goracci C, Grandini S, Bossù M, Bertelli E, Ferrari M. Laboratory assessment of the retentive potential of adhesive posts: a review. J Dent. 2007 Nov;35(11):827-35. http://dx.doi.org/10.1016/j.jdent.2007.07.009. PMid:17766026.

Mallmann A, Jacques LB, Valandro LF, Mathias P, Muench A. Microtensile bond strength of light- and self-cured adhesive systems to intraradicular dentin using a translucent fiber post. Oper Dent. 2005 Jul-Aug;30(4):500-6. PMid:16130871.

Mallmann A, Jacques LB, Valandro LF, Muench A. Microtensile bond strength of photoactivated and autopolymerized adhesive systems to root dentin using translucent and opaque fiber-reinforced composite posts. J Prosthet Dent. 2007 Mar;97(3):165-72. http://dx.doi.org/10.1016/j.prosdent.2007.01.008. PMid:17394915.

Oliveira LV, Maia TS, Zancopé K, Menezes MS, Soares CJ, Moura CCG. Can intra-radicular cleaning protocols increase the retention of fiberglass posts? A systematic review. Braz Oral Res. 2018 Mar;32(0):e16. http://dx.doi.org/10.1590/1807-3107bor-2018.vol32.0016. PMid:29561949.

Moura AS, Pereira RD, Rached FJ, Crozeta BM, Mazzi-Chaves JF, Souza-Flamini LE, et al. Influence of root dentin treatment on the push-out bond strength of fibre-reinforced posts. Braz Oral Res. 2017 Apr;31(0):e29. http://dx.doi.org/10.1590/1807-3107bor-2017.vol31.0029. PMid:28403332.

Simões TC, Luque-Martinez Í, Moraes RR, Sá A, Loguercio AD, Moura SK. Longevity of bonding of self-adhesive resin cement to dentin. Oper Dent. 2016 May-Jun;41(3):e64-72. http://dx.doi.org/10.2341/14-266-LR. PMid:26918926.

Goracci C, Raffaelli O, Monticelli F, Balleri B, Bertelli E, Ferrari M. The adhesion between prefabricated FRC posts and composite resin cores: microtensile bond strength with and without post-silanization. Dent Mater. 2005 May;21(5):437-44. http://dx.doi.org/10.1016/j.dental.2004.07.012. PMid:15826700.

Liu C, Liu H, Qian YT, Zhu S, Zhao SQ. The influence of four dual-cure resin cements and surface treatment selection to bond strength of fiber post. Int J Oral Sci. 2014 Mar;6(1):56-60. http://dx.doi.org/10.1038/ijos.2013.83. PMid:24177170.

Bühler J, Schmidli F, Weiger R, Walter C. Analysis of the effects of air polishing powders containing sodium bicarbonate and glycine on human teeth. Clin Oral Investig. 2015 May;19(4):877-85. http://dx.doi.org/10.1007/s00784-014-1317-z. PMid:25240922.

Pereira RD, Valdívia AD, Bicalho AA, Franco SD, Tantbirojn D, Versluis A, et al. Effect of photoactivation timing on the mechanical properties of resin cements and bond strength of fiberglass post to root dentin. Oper Dent. 2015 Sep-Oct;40(5):E206-21. http://dx.doi.org/10.2341/14-115-L. PMid:26237639.

Machado FW, Bossardi M, Ramos TS, Valente LL, Münchow EA, Piva E. Application of resin adhesive on the surface of a silanized glass fiber-reinforced post and its effect on the retention to root dentin. J Endod. 2015 Jan;41(1):106-10. http://dx.doi.org/10.1016/j.joen.2014.09.014. PMid:25442719.

Leme AA, Pinho AL, Gonçalves L, Correr-Sobrinho L, Sinhoreti MA. Effects of silane application on luting fiber posts using self-adhesive resin cement. J Adhes Dent. 2013 Jun;15(3):269-74. http://dx.doi.org/10.3290/j.jad.a28881. PMid:23534023.

Perdigão J, Geraldeli S, Lee IK. Push-out bond strengths of tooth-colored posts bonded with different adhesive systems. Am J Dent. 2004 Dec;17(6):422-6. PMid:15724754.

Pulido CA, de Oliveira Franco AP, Gomes GM, Bittencourt BF, Kalinowski HJ, Gomes JC, et al. An in situ evaluation of the polymerization shrinkage, degree of conversion, and bond strength of resin cements used for luting fiber posts. J Prosthet Dent. 2016 Oct;116(4):570-6. http://dx.doi.org/10.1016/j.prosdent.2016.02.019. PMid:27157607.

Hikita K, Van Meerbeek B, De Munck J, Ikeda T, Van Landuyt K, Maida T, et al. Bonding effectiveness of adhesive luting agents to enamel and dentin. Dent Mater. 2007 Jan;23(1):71-80. http://dx.doi.org/10.1016/j.dental.2005.12.002. PMid:16426673.

Armstrong S, Geraldeli S, Maia R, Raposo LH, Soares CJ, Yamagawa J. Adhesion to tooth structure: a critical review of “micro” bond strength test methods. Dent Mater. 2010 Feb;26(2):e50-62. http://dx.doi.org/10.1016/j.dental.2009.11.155. PMid:20045179.

Goracci C, Sadek FT, Monticelli F, Cardoso PE, Ferrari M. Influence of substrate, shape, and thickness on microtensile specimens’ structural integrity and their measured bond strengths. Dent Mater. 2004 Sep;20(7):643-54. http://dx.doi.org/10.1016/j.dental.2003.08.009. PMid:15236939.
 

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