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  • Research Article
    Resin infiltrant protects deproteinized dentin against erosive and abrasive wear
    Ana Theresa Queiroz de Albuquerque, Bruna Oliveira Bezerra, Isabelly de Carvalho Leal, Maria Denise Rodrigues de Moraes, Mary Anne S. Melo, Vanara Florêncio Passos
    Restor Dent Endod 2022;47(3):e29.   Published online July 1, 2022
    DOI: https://doi.org/10.5395/rde.2022.47.e29
    AbstractAbstract PDFPubReaderePub
    Objectives

    This study aimed to investigate the anti-erosive/abrasive effect of resin infiltration of previous deproteinized dentin.

    Materials and Methods

    Dentin slabs were randomly assigned to 3 groups (n = 15): Control (no deproteinization; no resin infiltrant applied), RI (no deproteinization; resin infiltrant applied), and DRI (deproteinization; resin infiltrant applied). After undergoing the assigned treatment, all slabs were subjected to an in vitro cycling model for 5 days. The specimens were immersed in citric acid (0.05 M, pH = 3.75; 60 seconds; 3 times/day) and brushed (150 strokes). Between the challenges, the specimens were exposed to a remineralizing solution (60 minutes). The morphological alterations were analyzed by mechanical profilometry (µm) and scanning electron microscopy (SEM). Data were submitted to one-way analysis of variance (ANOVA) and Tukey tests (p < 0.05).

    Results

    Control and RI groups presented mineral wear and did not significantly differ from each other (p = 0.063). DRI maintained a protective layer preserving the dentin (p < 0.001). After erosive/abrasive cycles, it was observed that in group RI, only 25% of the slabs partially evidenced the presence of the infiltrating, while, in the DRI group, 80% of the slabs presented the treated surface entirely covered by a resin-component layer protecting the dentin surface as observed in SEM images.

    Conclusions

    The removal of the organic content allows the resin infiltrant to efficiently protect the dentin surface against erosive/abrasive lesions.

    Citations

    Citations to this article as recorded by  
    • Acidic/abrasive challenges on simulated non-carious cervical lesions development and morphology
      Giovanna C. Denucci, Ian Towle, Cecilia P. Turssi, George J. Eckert, Anderson T. Hara
      Archives of Oral Biology.2025; 169: 106120.     CrossRef
    • Physio‐Mechanic and Microscopic Analyses of Bioactive Glass‐Based Resin Infiltrants
      Syed Zubairuddin Ahmed, Abdul Samad Khan, Wejdan Waleed Nasser, Methayel Abdulrahman Alrushaid, Zahrah Mohammed Alfaraj, Moayad Mohammed Aljeshi, Asma Tufail Shah, Budi Aslinie Md Sabri, Sultan Akhtar, Mohamed Ibrahim Abu Hassan
      Microscopy Research and Technique.2025; 88(2): 595.     CrossRef
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