Effect of curing mode on microtensile bond strength to dentin of two dual-cured adhesive systems in combination with resin luting cements for indirect restorations

C. A.G. Arrais, M. Giannini, F. A. Rueggeberg, D. H. Pashley

Research output: Contribution to journalArticle

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Abstract

This study evaluated the microtensile bond strength (μTBS) of dual-cured adhesive systems when the different components were either light activated or left in the uncured state prior to cementation of an indirect composite restoration. Occlusal dentin surfaces of 40 human third molars were flattened. The teeth were randomly assigned to 8 groups (n=5) according to the dualcured systems (bonding agents/resin cements) and curing modes: All Bond 2/Duolink (AB2-BISCO Inc) and Optibond Solo Plus Dual Cure/Nexus 2 (SOLO-Kerr). Resin cements were applied to pre-cured resin composite discs (2 mm thick/Z-250/3M ESPE), which were fixed to dentin surfaces containing adhesive resin in either cured (LP) or uncured states (SP). The restored teeth were light activated according to the manufacturers' instructions (LRC-XL3000/3M ESPE) or allowed to self-cure (SRC). The restored teeth were water-stored at 37°C for 24 hours. They were then both mesial-distally and buccal-lingually sectioned to obtain bonded specimens (1.2 mm2). Each specimen was tested in tension at a crosshead speed of 0.6 mm/minute until failure. Data (MPa (SD)) were analyzed by two-way ANOVA and Tukey's post-hoc test (p<.05). AB2/SP exhibited higher μTBS than AB2/LP (p=.00001); however, no significant differences were noted between SOLO/LP and SOLO/SP. Results suggested that dual-cured adhesive systems were as strong or even stronger when they were left in the uncured state prior to indirect resin composite cementation.

Original languageEnglish (US)
Pages (from-to)37-44
Number of pages8
JournalOperative dentistry
Volume32
Issue number1
DOIs
StatePublished - Jan 1 2007

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Resin Cements
Dentin
Adhesives
Cementation
Tooth
Composite Resins
Light
Third Molar
Cheek
Analysis of Variance
Water

ASJC Scopus subject areas

  • Dentistry(all)

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Effect of curing mode on microtensile bond strength to dentin of two dual-cured adhesive systems in combination with resin luting cements for indirect restorations. / Arrais, C. A.G.; Giannini, M.; Rueggeberg, F. A.; Pashley, D. H.

In: Operative dentistry, Vol. 32, No. 1, 01.01.2007, p. 37-44.

Research output: Contribution to journalArticle

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