Effect of Toothbrushing with Different Dentifrices on the Surface of an Infiltrant Resin Used to Inactivate White Spot Lesions


  • Ana Paula Lima da Silva
  • Ruchele Dias Nogueira
  • Cesar Penazzo Lepri
  • Marcelo Rodrigues Pinto
  • Regina Guenka Palma-Dibb
  • Vinicius Rangel Geraldo-Martins


Dental Caries, Composite Resins, Dentifrices, Tooth Abrasion


Objective: To verify whether an infiltrant resin used to inactivate white spot lesions (WSL) on enamel can resist the abrasive challenges promoted by tooth brushing with different dentifrices. Material and Methods: WSL was induced on bovine enamel samples (pH cycling) and then treated with an infiltrant resin (ICON). Afterward, half of the sample was protected. The other half underwent an abrasive challenge using an electric toothbrush with soft bristles., using dentifrices with different abrasiveness (n=10): Group 1: Colgate Maximum Cavity Protection; Group 2: Sensodyne Repair & Protect; Group 3: Colgate Sensitive Pro-Relief; Group 4: Colgate 2 in 1 Watermelon Flavor; e Group 5: Colgate Luminous White Advanced. The wear profile after brushing was evaluated by confocal laser scanning microscopy (µm), and the enamel/resin interface was observed in scanning electron microscopy (SEM). Profilometry data were analyzed using one-way ANOVA followed by Tukey's test (α=5%). Results: Brushing produced more significant wear on group 5 (3.96±0.26) when compared to groups 1 (3.45±0.21), 2(3.22±0,4) and 4(3.11±0.34). Data from Group 3 (3.82±0.6) was similar to G5 but higher than G1, G2, and G4. SEM analysis showed that the adhesive interface remained intact in all groups after the abrasive challenge. Conclusion: Dentifrices with a higher relative dentin abrasiveness produced more significant wear of the infiltrant, but the composite/enamel interface was not altered after the abrasive challenges.


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How to Cite

Silva, A. P. L. da, Nogueira, R. D., Lepri, C. P., Pinto, M. R., Palma-Dibb, R. G., & Geraldo-Martins, V. R. (2024). Effect of Toothbrushing with Different Dentifrices on the Surface of an Infiltrant Resin Used to Inactivate White Spot Lesions. Pesquisa Brasileira Em Odontopediatria E Clínica Integrada, 24, e230130. Retrieved from https://revista.uepb.edu.br/PBOCI/article/view/3485



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