Effects of different treatments on chemical and morphological features of eroded dentin

  • Sandra Kiss Moura
  • Carolina Cury Lopes
  • Livia Tosi Trevelin
  • Adriana Bona Matos
  • Íssis Virgínia Luque Martinez
  • Marcelo Estevam
  • Sandra Kalil Bussadori
Original Article

Abstract

To evaluate the treatment of eroded dentin (Sensodyne Repair & Protect™, Er:YAG laser and combinations). The occlusal surfaces of 25 third molars were sectioned 1.5 mm in thickness. After an erosion cycle (5 min in demineralizing solution + 3 h in remineralizing solution; six cycles a day for 8 days), the samples were divided into five groups (n = 5): (E) erosion − control; (ES) erosion + Sensodyne Repair & Protect (NovaMin); (EL) erosion + Er:YAG laser (40 mJ, 10 Hz, 0.4 W, 50 μs, 3.1 J/cm2, 63 W/cm2); (ELS) erosion + Er:YAG laser + Sensodyne; and (ESL) erosion + Sensodyne + Er:YAG laser. Following storage in ultrapure water (37 °C/14 days), the Ca/P ratio was evaluated by EDXRF and the morphology surfaces examined in SEM. The percentage of exposed dentin tubules was calculated. One-way analysis of variance and Tukey’s test at 5% were used to treat the data. The Ca/P ratio was higher in E and ES groups. More exposed dentin tubules were found in E group and less exposed tubules were found in the ES group (p < 0.0001). When the toothpaste and laser were combined, the number of occluded dentin tubules was higher when laser was performed first (ELS). A positive effect was found when the laser and toothpaste were combined.

Keywords

Dental erosion Laser Desensitizing agents 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethics approval

Human third molars used in this study following approval from the human research ethics committee (certificate number: 1.209.605).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  • Sandra Kiss Moura
    • 1
    • 2
  • Carolina Cury Lopes
    • 1
  • Livia Tosi Trevelin
    • 3
  • Adriana Bona Matos
    • 3
  • Íssis Virgínia Luque Martinez
    • 4
  • Marcelo Estevam
    • 5
  • Sandra Kalil Bussadori
    • 2
  1. 1.Department of DentistryUniversity North of Parana (UNOPAR)LondrinaBrazil
  2. 2.Department of Biophotonics Applied to Health SciencesNove de Julho University (UNINOVE)São PauloBrazil
  3. 3.Department of DentistryUniversity of São Paulo (FOUSP)São PauloBrazil
  4. 4.Dentistry Academic Unit, Faculty of MedicinePontificia Universidad Católica de ChileSantiagoChile
  5. 5.LPIS Health Research and Innovation LaboratoryFederal Institute of Parana (IFPR)LondrinaBrazil

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