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The effect of self-etching adhesive system associated with different energy densities of Nd:YAG laser on microtensile bond strength to dentin

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Abstract

Purpose

This study has evaluated the dentin bond strength of Clearfil SE Bond (CSEB) Self-Etching Adhesive System associated with different energy densities of Nd:YAG laser through unpolymerized adhesive.

Methods

The dentin surfaces of 90 bovine teeth were flattened and divided into six groups (n = 15): G1 (control), CSEB + photopolymerization; G2, CSEB + Nd: YAG laser (74.64 J/cm2) + photopolymerization; G3, CSEB + Nd: YAG laser (100 J/cm2) + photopolymerization; G4, CSEB + Nd: YAG Laser (125 J/cm2) + photopolymerization; G5, CSEB + Nd: YAG Laser (149.28 J/cm2) + photopolymerization; and G6, CSEB + Nd: YAG Laser (174.16 J/cm2) + photopolymerization. Resin restorations were made after sectioning the teeth and submitted to microtensile bond strength test.

Results

Data were submitted to ANOVA and Tukey’s test (5%), resulting in a value of 0.0002. G2 (74.64 J/cm2) presented higher bond strength values compared to G1 (control), G5 (149.28 J/cm2), and G6 (174.16 J/cm2). Also, G3 (100 J/cm2) presented higher bond strength values compared to G5 (149.28 J/cm2) and G6 (174.16 J/cm2).

Conclusion

Nd:YAG laser irradiation (74.64 J/cm2) through unpolymerized CSEB can improve dentin bond strength of CSEB compared to non-irradiated dentin and also increase dentin bond strength compared to higher Nd:YAG laser irradiations (149.28 J/cm2 and 174.16 J/cm2).

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Acknowledgements

Thanks to FAPESP (grant 2010/19937-4).

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Authors and Affiliations

  1. Institute of Science and Technology, UNESP - Univ Estadual Paulista, São José dos Campos (SP), Department of Restorative Dentistry, Av Francisco José Longo, 777, Jardim São Dimas, São José dos Campos, SP, CEP 12245-000, Brazil

    Daphne Camara Barcellos, Priscila Holleben, Beatriz Maria Fonseca, Bruna de Cássia Sabino & Sérgio Eduardo de Paiva Gonçalves

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  1. Daphne Camara Barcellos
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  2. Priscila Holleben
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  3. Beatriz Maria Fonseca
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  4. Bruna de Cássia Sabino
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  5. Sérgio Eduardo de Paiva Gonçalves
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Correspondence to Sérgio Eduardo de Paiva Gonçalves.

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Barcellos, D.C., Holleben, P., Fonseca, B.M. et al. The effect of self-etching adhesive system associated with different energy densities of Nd:YAG laser on microtensile bond strength to dentin. Laser Dent Sci 2, 157–162 (2018). https://doi.org/10.1007/s41547-018-0033-4

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  • DOI: https://doi.org/10.1007/s41547-018-0033-4

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