Influence of acid etchant brand on bond strength of composite resin to dentin
Influência da marca do condicionador ácido na resistência de união da resina composta à dentina
Passos, Laiane Maria Alves; Santos, Silvando Vieira dos; Rodrigues, João Lima; Griza, Sandro; Faria-e-Silva, André Luis
http://dx.doi.org/10.1590/S1807-25772012000600009
Rev. odontol. UNESP, vol.41, n6, p.420-424, 2012
Abstract
Despite the importance of the acid etching step on bonding procedures, little is known about the acid etchant brand effect on bond strength of adhesive to dentin. Objective: The aim of this study was to evaluate the effect of different acid etchants at the bond strength of composite resin to dentine. Material and method: Twenty five bovine incisors had their crown sectioned in two hemi-sections. The buccal surfaces were grounded with #180 silicon carbide (SiC) abrasive paper to exposure of dentin, followed by #600 SiC paper to standardize the smear layer. The samples were randomly allocated into five groups (n = 10) according to acid etchant brands: 3M ESPE, Ultradent, Dentsply, Villevie and DFL.Only a two-step etch-and-rinse adhesive system (Ambar, FGM) was used. Silicon molds were used to build-up three resin composite cylinder per sample. After 24 hours, cylinders were submitted to shear load until the failure. Data were analyzed by one way ANOVA and Tukey`s test (α = 0.05). The failure mode was evaluated under optical microscopy and the data were submitted to Chi-square test (α = 0.05). Result: There was no statistical difference on bond strength obtained between the acid etchants evaluated. There was predominance of adhesive failures, except for etchants of Dentsply and DFL that showed similarity between mixed and adhesive failures. Conclusion: Different brands of acid etchants did not influence on the bond strength of composite resin to dentin.
Keywords
Dental-bonding agents, shear strength, acid etching, dental.
Resumo
Apesar da importância da etapa de condicionamento ácido nos procedimentos adesivos, pouco se sabe sobre o efeito da marca do condicionador ácido sobre a união do adesivo à dentina. Objetivo: Este estudo avaliou o efeito de diferentes condicionadores ácidos na união da resina composta à dentina. Material e método: Vinte e cinco incisivos bovinos tiveram a coroa dividida em duas hemissecções. As superfícies vestibulares foram desgastadas com lixa carbeto de silício (SiC) #180 até a exposição de dentina, seguida por lixas SiC #600 para padronização da smear layer. As amostras foram aleatoriamente alocadas em cinco grupos (n = 10), de acordo com marca do condicionador ácido: 3M ESPE, Ultradent, Dentsply, Villevie e DFL. Apenas um sistema de união convencional de dois passos (Ambar, FGM) foi utilizado. Matrizes de silicone foram utilizadas na confecção de três cilindros de resina composta em cada amostra. Após 24 horas, os cilindros foram testados sob carga de cisalhamento até a falha. Os dados foram analisados com ANOVA a um critério e teste de Tukey (α = 0,05). O modo de falha foi avaliado em microscopia óptica e os dados submetidos ao Teste Qui-quadrado (α = 0,05). Resultado: Não houve diferença estatística na resistência de união obtida entre os condicionadores ácidos avaliados. Houve predomínio de falhas adesivas, exceto para os condicionadores da Dentsply e DFL, que demonstraram similaridade entre falhas adesivas e mistas. Conclusão: As diferentes marcas de condicionadores ácidos avaliados não influenciaram a resistência de união de resina composta à dentina.
Palavras-chave
Adesivos dentinários, resistência ao cisalhamento, ataque ácido dentário.
Referências
1. Van Meerbeek B, De Munck J, Yoshida Y, Inoue S, Vargas M, Vijav P, et al. Buonocore memorial lecture. Adhesion to enamel and dentin: current status and future challenges. Oper Dent. 2003; 28: 215-35. PMid:12760693.
2. Marshall SJ, Bayne SC, Baier R, Tomsia AP, Marshall GW. A review of adhesion science. Dent Mater. 2010; 26:e11-6. PMid:20018362. http://dx.doi.org/10.1016/j.dental.2009.11.157
3. Montes MA, de Goes MF, Sinhoreti MA. The in vitro morphological effects of some current pre-treatments on dentin surface: a SEM evaluation. Oper Dent. 2005; 30:201-12. PMid:15853106.
4. Torres-Gallegos I, Zavala-Alonso V, Patiño-Marín N, Martinez-Castañon G, Anusavice K, Loyola-Rodríguez J. Enamel roughness and depth profile after phosphoric acid etching of healthy and fluorotic enamel. Aust Dent J. 2012; 57:151-6. PMid:22624754. http://dx.doi.org/10.1111/j.1834-7819.2012.01677.x
5. D'Alpino PH, Pereira JC, Svizero NR, Rueggeberg FA, Carvalho RM, Pashley DH. A new technique for assessing hybrid layer interfacial micromorphology and integrity: two-photon laser microscopy. J Adhes Dent. 2006; 8:279-84. PMid:17080874.
6. Pelin IM, Piednoir A, Machon D, Farge P, Pirat C, Ramos SM. Adhesion forces between AFM tips and superficial dentin surfaces. J Colloid Interface Sci. 2012; 376:262-8. PMid:22472512. http://dx.doi.org/10.1016/j.jcis.2012.03.013
7. Brackett MG, Li N, Brackett WW, Sword RJ, Qi YP, Niu LN, et al. The critical barrier to progress in dentine bonding with the etch-and-rinse technique. J Dent. 2011; 39:238-48. PMid:21215788 PMCid:3143366. http://dx.doi.org/10.1016/j.jdent.2010.12.009
8. Nakabayashi N, Kojima K, Masuhara E. The promotion of adhesion by infiltration of monomers into tooth substrates. J Biomed Mater Res. 1982; 16: 265-73. PMid:7085687. http://dx.doi.org/10.1002/jbm.820160307
9. Lafuente D. SEM analysis of hybrid layer and bonding interface after chlorhexidine use. Oper Dent. 2012; 37:172-80. PMid:22166111. http://dx.doi.org/10.2341/10-251-L
10. Tarçin B, Günday M, Overçoğlu HS, Türkmen C, Overçoğlu ML, Oksüz M, Ay M. Tensile bond strength of dentin adhesives on acid- and laser-etched dentin surfaces. Quintessence Int. 2009; 40(10):865-74. PMid:19898719.
11. Mahmoud SH, Ahmed ME, Mahmoud KM, Grawish Mel-A, Zaher AR. Effects of phosphoric acid concentration and etching duration on enamel and dentin tissues of uremic acid concentration and etching duration on enamel and dentin. An AFM study. J Adhes Dent. 2012; 14:215-21. PMid:22282744.
12. Marshall GW Jr, Inai N, Wu-Magidi IC, Balooch M, Kinney JH, Tagami J, Marshall SJ. Dentin demineralization: effects of dentin depth, pH and different acids. Dent Mater. 1997;13:338-43. http://dx.doi.org/10.1016/S0109-5641(97)80104-2
13. Wang Y, Spencer P. Effect of acid etching time and technique on interfacial characteristics of the adhesive-dentin bond using differential staining. Eur J Oral Sci. 2004; 112:293-9. PMid:15154930. http://dx.doi.org/10.1111/j.1600-0722.2004.00127.x
14. Pashley DH, Tay FR, Breschi L, Tjäderhane L, Carvalho RM, Carrilho M, et al. State of the art etch-and-rinse adhesives. Dent Mater. 2011; 27:1-16. PMid:21112620. http://dx.doi.org/10.1016/j.dental.2010.10.016
15. Pedigão J, Lopes M. The effect of etching time on dentin demineralization. Quintessence Int. 2001; 32:19-26.
16. Hashimoto M, Ohno H, Kaga M, Sano H, Tay FR, Oguchi H, et al. Over-etching effects on micro-tensile bond strength and failure patterns for two dentin bonding systems . J Dent. 2002; 30:99-105. http://dx.doi.org/10.1016/S0300-5712(02)00004-0
17. Perdigão J, Denehy GE, Swift EJ Jr. Silica contamination of etched dentin and enamel surfaces: a scanning electron microscopic and bond strength study. Quintessence Int. 1994; 25:327-33. PMid:7938417.
18. Perdigão J, May KN Jr, Wilder AD Jr, Lopes M. The effect of depth of dentin demineralization on bond strengths and morphology of the hybrid layer. Oper Dent. 2000; 25:186-94. PMid:11203815.
19. Faria-e-Silva AL, Silva JL, Almeida TG, Veloso FB, Ribeiro SM, Andrade TD, et al. Effect of acid etching time and technique on bond strength of an etch-and-rinse adhesive. Acta Odontol Latinoam. 2011; 24:75-80. PMid:22010410.
20. Breschi L, Prati C, Gobbi P, Pashley D, Mazzotti G, Teti G, et al. Immunohistochemical analysis of collagen fibrils within the hybrid layer: a FEISEM study. Oper Dent. 2004; 29:538-46. PMid:15470876.
21. Liu Y, Tjäderhane L, Breschi L, Mazzoni A, Li N, Mao J, et al. Limitations in bonding to dentin and experimental strategies to prevent bond degradation. J Dent Res. 2011; 90:953-68. PMid:21220360 PMCid:3148178. http://dx.doi.org/10.1177/0022034510391799
22. Mazzoni A, Carrilho M, Papa V, Tjäderhane L, Gobbi P, Nucci C, et al. MMP-2 assay within the hybrid layer created by a two-step etch-and-rinse adhesive: biochemical and immunohistochemical analysis. J Dent. 2011; 39:470-7. PMid:21554921. http://dx.doi.org/10.1016/j.jdent.2011.04.004
Facebook
Google+
Twitter
LinkedIn
Mendeley
StumbleUpon
CiteULike
Reddit
Email