Effect of dentin pretreatment and curing mode on the microtensile bond strength of self-adhesive resin cements

염승현; 정경화; 손성애; YongHoon Kwon; Jeongkil Park

Effect of dentin pretreatment and curing mode on the microtensile bond strength of self-adhesive resin cements

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Type: Academic journal

Author: 염승현 정경화 손성애 YongHoon Kwon Jeongkil Park

Journal: The Korean Academy Of Prosthodontics The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제7권 제4호 KCI Accredited Journals

Published: 2015.1

Pages: 317 - 322 (6page)

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Effect of dentin pretreatment and curing mode on the microtensile bond strength of self-adhesive resin cements

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PURPOSE. The aim was to evaluate the effect of curing mode and different dentin surface pretreatment on microtensile bond strength (μTBS) of self-adhesive resin cements. MATERIALS AND METHODS. Thirty-six extracted human permanent molars were sectioned horizontally exposing flat dentin surface. The teeth were divided into 12 groups (3 teeth/group) according to the dentin surface pretreatment methods (control, 18% EDTA, 10% Polyacrylic acid) and curing mode (self-curing vs. light-curing) of cement. After pretreatment, composite resin blocks were cemented with the following: (a) G-CEM LinkAce; (b) RelyX U200, followed by either self-curing or light-curing. After storage, the teeth were sectioned and μTBS test was performed using a microtensile testing machine. The data was statistically analyzed using one-way ANOVA, Student T-test and Scheffe’ post-hoc test at P<.05 level. RESULTS. For G-CEM LinkAce cement groups, polyacrylic acid pretreatment showed the highest μTBS in the self-cured group. In the light-cured group, no significant improvements were observed according to the dentin surface pretreatment. There were no significant differences between curing modes. Both dentin surface pretreatment methods helped to increase the μTBS of RelyX U200 resin cement significantly and degree of pretreatment effect was similar. No significant differences were found regarding curing modes except control groups. In the comparisons of two self-adhesive resin cements, all groups within the same pretreatment and curing mode were significantly different excluding self-cured control groups. CONCLUSION. Selecting RelyX U200 used in this study and application of dentin surface pretreatment with EDTA and polyacrylic acid might be recommended to enhance the bond strength of cement to dentin.

#Self-adhesive resin cements #Curing mode #Dentin surface pretreatment #Bond strength

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References (21)

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/ 2012 / G-CEM LinkAce Product Brochure 2012. GC

/ 2012 / Rely XTM U-200 Product Brochure 2012. 3M

Aguiar TR / 2010 / Effect of curing mode on bond strength of selfadhesive resin luting cements to dentin / J Biomed Mater Res B Appl Biomater 93 : 122 ~ 127

Arrais CA / 2007 / Microtensile bond strength of dual-polymerizing cementing systems to dentin using different polymerizing modes / J Prosthet Dent 97 : 99 ~ 106

Arrais CA / 2008 / Effect of curing mode on the polymerization characteristics of dual-cured resin cement systems / J Dent 36 : 418 ~ 426

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