Influence of fluoride-releasing materials in the inhibition of enamel and dentin demineralization around restorations
DOI:
https://doi.org/10.4322/bds.2022.e3505Resumen
Objective: The aim was to evaluate the influence of fluoride-releasing restorative materials in enamel and dentin
microhardness. Material and Methods: 40 blocks (5x5x3 mm) from cervical third of human molars received a cavity
preparation between the enamel and dentin, and the restorations were subjected to in vitro caries model. Specimens
were randomly restored with (n=10): conventional glass ionomer cement (Ketac Cem, 3M ESPE); polyacid-modified
composite resin (Ionoseal, VOCO); resin-modified glass ionomer cement (Ionofast, Biodinâmica); or microhybrid
composite resin (Filtek Z250, 3M ESPE). The specimens were sectioned longitudinally and enamel and dentin
Knoop microhardness were determined at different distances from the restorative material (100, 200 and 300 um)
and depth of surface (20, 40 and 60 um). The data were submitted to three-way repeated measures ANOVA and
Tukey´s test (a=0.05). Results: For enamel, the double interactions between material x distance and material x
depth were statistically significant. In all depths and distances, the highest values of enamel microhardness were
observed for Ketac Cem. In dentin, the materials differed statistically from each other, and Ionoseal obtained higher
microhardness values than those found in Ionofast. Conclusion: Conventional glass ionomer cement is more effective
in preventing enamel demineralization around restoration followed by the polyacid-modified composite resin. In
dentin, the polyacid-modified composite resin obtained better performance than resin-modified glass ionomer cement.
KEYWORDS
Compomers; Dental caries; Glass ionomer cements; Hardness tests; Composite Resins.
Descargas
Descargas
Publicado
Cómo citar
Número
Sección
Licencia
Brazilian Dental Science uses the Creative Commons (CC-BY 4.0) license, thus preserving the integrity of articles in an open access environment. The journal allows the author to retain publishing rights without restrictions.
=================
COPYRIGHT TRANSFER AND RESPONSIBILITY STATEMENT
(PDF)
For all articles published in the BDS journal, copyright is retained by the authors. Articles are licensed under an open-access Creative Commons CC BY 4.0 license, meaning that anyone may download and read the paper for free. In addition, the article may be reused and quoted, provided that the original published version is cited. These conditions allow for maximum use and exposure of the work while ensuring that the authors receive proper credit. All metadata associated with published articles is released under the Creative Commons CC0 Universal Public Domain Dedication.
Before the submission, authors must obtain permission to reproduce any published material (figures, schemes, tables, or any extract of a text) that does not fall into the public domain or for which they do not hold the copyright. Permission should be requested by the authors from the copyright holder (usually the Publisher, please refer to the imprint of the individual publications to identify the copyright holder).
The authors hereby attest that the study is original and does not present manipulated data, fraud, or plagiarism. All names listed made a significant scientific contribution to the study, are aware of the presented data, and agree with the final version of the manuscript. They assume complete responsibility for the ethical aspects of the study.
This text must be printed and signed by all authors. The scanned version should be submitted as supplemental file during the submission process.
