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. 2014:2014:782090.
doi: 10.1155/2014/782090. Epub 2014 May 7.

Bond strengths of silorane- and methacrylate-based composites to various underlying materials

Sezin Ozer  1 , Emine Sen Tunc  1 , Nihan Gonulol  2
Affiliations

Bond strengths of silorane- and methacrylate-based composites to various underlying materials

Sezin Ozer et al. Biomed Res Int. 2014.

Abstract

Objective: To evaluate shear bond strength (SBS) values of a methacrylate (FZ 250) and a silorane-based (FS) resin composite to various underlying materials.

Materials and methods: A total of 80 samples were prepared with four different underlying materials; a flowable (FLC) and a bulk-fill flowable composite (BFC), and a conventional (CGIC) and resin modified glass-ionomer cement (RMGIC). These underlying materials were laminated plus to methacrylate or silorane-based resin composites (n = 10). To evaluate the specimens SBS values were evaluated with a universal testing machine (cross-head speed; 1.0 mm/min). Statistical comparisons were carried out using two-way ANOVA and Tukey's post hoc test with a significance level of P < 0.05.

Results: SBS values for FZ250 were significantly higher than for FS for all of the underlying materials tested (P < 0.05). SBS values of FZ250 to BFC were significantly higher than to all other materials (P < 0.05), whereas SBS values of FS did not vary significantly according to underlying material (P > 0.05).

Conclusion: The use of FS in conjunction with any of the tested materials showed lower SBS than the FZ 250. Also, new low elastic modulus liner BFC presented slightly good interfacial adhesion so, the usage of BFC as an underlying material may be preferable for FZ 250.

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Figures

Figure 1
Figure 1
(a) Representative cohesive fracture showing good interlocking adhesion between FZ250 and CGIC. (b) Representative adhesive fracture (FS and RMGIC). (c) Mixed fracture (FZ250 and BFC). Adhesive failure observed in the underlying material along with cohesive failure in the bulk-filled composite. (d) Mixed fracture (FZ250 and FLC). Adhesive and cohesive failure observed in FZ250 and in the flowable composite.
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References

    1. Wilson MA, Cowan AJ, Randall RC, Crisp RJ, Wilson NHF. A practice-based, randomized, controlled clinical trial of a new resin composite restorative: one-year results. Operative Dentistry. 2002;27(5):423–429. - PubMed
    1. Versluis A, Douglas WH, Cross M, Sakaguchi RL. Does an incremental filling technique reduce polymerization shrinkage stresses? Journal of Dental Research. 1996;75(3):871–878. - PubMed
    1. Soares CJ, Soares PV, de Freitas Santos-Filho PC, Castro CG, Magalhaes D, Versluis A. The influence of cavity design and glass fiber posts on biomechanical behavior of endodontically treated premolars. Journal of Endodontics. 2008;34(8):1015–1019. - PubMed
    1. Lee MR, Cho BH, Son HH, et al. Influence of cavity dimension and restoration methods on the cuspal deflection of premolars in composite restoration. Dental Materials. 2007;23:288–295. - PubMed
    1. Park J, Chang J, Ferracane J, Lee IB. How should composite be layered to reduce shrinkage stress: incremental or bulk filling? Dental Materials. 2008;24(11):1501–1505. - PubMed

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