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Nd:YAG laser and calcium sodium phosphosilicate prophylaxis paste in the treatment of dentin hypersensitivity: a double-blind randomized clinical study

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Abstract

Aim

This double-blind, placebo-controlled, randomized clinical trial evaluated the effectiveness of Nd:YAG laser and a calcium sodium phosphosilicate–containing paste (NovaMin®) in the treatment of cervical dentin hypersensitivity (CDH).

Materials and methods

Seventy patients were randomly allocated into the following experimental groups: control-placebo, calcium sodium phosphosilicate paste (NovaMin®), and Nd:YAG laser (1 W, 10 Hz, 85 J/cm2). Pain was evaluated by means of a visual analog pain scale (VAS) after evaporative stimulation with a jet of air and tactile stimulation with an exploratory probe, before treatment (baseline) and after 5 min, 1week, and 4 weeks. When patients presented more than one tooth with CDH, the mean of the values obtained was calculated. Irradiation with Nd:YAG laser was performed twice in the mesial-distal and twice in the occlusal-gingival direction. The NovaMin®-containing paste was applied with a rubber cup at low speed for 60 s. Patients of the placebo group received simulations of the two treatments. As the data presented normal distribution, the two-way ANOVA repeated measures test was used.

Results

In all the experimental times, reduction in pain was demonstrated in comparison with baseline for all treatments (p < 0.05); however, there was no difference among the experimental groups in any of the time intervals evaluated (p > 0.05).

Conclusion

All treatments were equally effective in reducing the pain of CDH.

Clinical relevance

Nd:YAG laser irradiation and the calcium sodium phosphosilicate paste could reduce the symptoms of CDH; thus, they stand out as viable alternatives for the treatment of this condition.

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Acknowledgments

Scholarship: The authors would like to express their gratitude to the State of São Paulo Research Foundation (FAPESP) for the scholarship provided for the first author (no. 2016/17143-7).

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Authors and Affiliations

  1. Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil

    Vinícius Maximiano, Alana Cristina Machado, Mirian Lumi Yoshida & Tais Scaramucci

  2. Department of Periodontics, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil

    Claudio Mendes Pannuti

  3. Special Laboratory of Lasers in Dentistry (LELO), Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil

    Ana Cecilia Correa Aranha

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  1. Vinícius Maximiano
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  2. Alana Cristina Machado
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  4. Claudio Mendes Pannuti
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Correspondence to Ana Cecilia Correa Aranha.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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Maximiano, V., Machado, A.C., Yoshida, M.L. et al. Nd:YAG laser and calcium sodium phosphosilicate prophylaxis paste in the treatment of dentin hypersensitivity: a double-blind randomized clinical study. Clin Oral Invest 23, 3331–3338 (2019). https://doi.org/10.1007/s00784-018-2759-5

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