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Er:YAG laser irradiation to control the progression of enamel erosion: an in situ study

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Abstract

This in situ study evaluated the effect of Er:YAG laser irradiation in controlling the progression of enamel erosion-like lesions. Fifty-six enamel slabs (330 KHN ± 10 %) with one fourth of the surface covered with resin composite (control area) were submitted to initial erosion-like lesion formation with citric acid. The slabs were divided into two groups: irradiated with Er:YAG laser and non-irradiated. Fourteen volunteers used an intraoral palatal appliance containing two slabs, in two phases of 5 days each. During the intraoral phase, in a crossed-over design, half of the volunteers immersed the appliance in citric acid while the other half used deionized water, both for 5 min, three times per day. Enamel wear was determined by an optical 3D profilometer. ANOVA revealed that when deionized water was used as immersion solution during the intraoral phase, lower values of wear were showed when compared with the groups that were eroded with citric acid, whether irradiated or non-irradiated with Er:YAG laser. When erosion with citric acid was performed, Er:YAG laser was not able to reduce enamel wear. Small changes on enamel surface were observed when it was irradiated with Er:YAG laser. It may be concluded that Er:YAG laser irradiation did not reduce the progression of erosive lesions on enamel submitted to in situ erosion with citric acid.

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Acknowledgments

The authors would like to thank the State of São Paulo Research Foundation (FAPESP) for the scholarship awarded (Proc No. 2011/23252-0), National Council for Scientific and Technological Development CNPq (Proc No. 302743/2010-3), and Federal University of Rio de Janeiro, for authorization to use the 3D optical profilometer. The funders had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The authors would like to thank Ruth Labovitch for the English language review.

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Authors and Affiliations

  1. Department of Restorative Dentistry, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil

    R. S. Scatolin & S. A. M. Corona

  2. Dental School, University of Ribeirão Preto, Ribeirão Preto, SP, Brazil

    V. Colucci

  3. Department of Pediatric and Orthodontics, Dental School, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil

    T. P. Lepri, A. K. Alexandria & L. C. Maia

  4. Department of Dental Materials and Prosthetic Dentistry, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil

    R. Galo

  5. Department of Pediatric Clinics, Preventive and Community Dentistry, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil

    M. C. Borsatto

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  1. R. S. Scatolin
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  2. V. Colucci
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Correspondence to R. S. Scatolin.

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Scatolin, R.S., Colucci, V., Lepri, T.P. et al. Er:YAG laser irradiation to control the progression of enamel erosion: an in situ study. Lasers Med Sci 30, 1465–1473 (2015). https://doi.org/10.1007/s10103-014-1620-6

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  • DOI: https://doi.org/10.1007/s10103-014-1620-6

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