Effect of whitening dentifrices on surface roughness of dental nanofiller-based composites. Stereomycroscopy and AFM analysis

Authors

  • Rafaela Yoshie Oliveira Kinoshita Dental Materials Course – School of Dentistry – University Nove de Julho – UNINOVE – São Paulo – SP – Brazil.
  • Ricardo Sgura Dental Materials Course – School of Dentistry – University Nove de Julho – UNINOVE – São Paulo – SP – Brazil.
  • Mariana Cavalcante Reis Department of Biomaterials and Oral Biology – School of Dentistry – University of São Paulo – USP – São Paulo – SP – Brazil.
  • Milton Satoiuqui Masuda School of Dentistry – University Camilo Castelo Branco – UNICASTELO – São Paulo – SP – Brazil.
  • Paulo Sérgio Lopes Prazeres Dental Materials Course – School of Dentistry – University Nove de Julho – UNINOVE – São Paulo – SP – Brazil.
  • Waldyr Romão Júnior Dental Materials Course – School of Dentistry – University Nove de Julho – UNINOVE – São Paulo – SP – Brazil.
  • Carlos Eduardo Francci Department of Biomaterials and Oral Biology – School of Dentistry – University of São Paulo – USP – São Paulo – SP – Brazil.
  • André Guaraci DeVito-Moraes Dental Materials Course – School of Dentistry – University Nove de Julho – UNINOVE – São Paulo – SP – Brazil.

DOI:

https://doi.org/10.14295/bds.2016.v19i3.1271

Abstract

Objective: the aim of this study was to assess the effects of whitening dentifrices on the surface roughness of three commercial nanofiller-based composite. Material and Methods: two optical analyses were performed: stereomicroscopy and atomic force microscopy (AFM). Disks (8.0 diam. x 2.0 mm thick.) of the nanocomposite Z350 (3M ESPE) and two nano-hybrid composites (EsthetXHD, Dentsply and Premisa, Kerr) were submitted to in vitro brushing (1000 cycles) with three whitening dentifrices (Colgate Luminous White, Oral-B 3D White e Close-Up Diamond Attraction) and a control (Colgate Total12). The results were analyzed by stereomicroscopy and rated according to the following criteria: 0 – no observed roughness, 1 – average roughness, 2 – great roughness. Data was submitted to Kruskall-Wallis non-parametric test followed by Tukey test (p = 0.05). Z350 specimens were assessed by AFM. Results: the surface roughness of composites brushed with whitening dentifrices was statistically higher than the roughness found in specimens brushed with conventional dentifrice. AFM analyses showed that, at a submicrometric scale, there was an increase in the number of peaks and irregularities in specimens brushed with whitening dentifrices. Conclusion: Whitening dentifrices may have an impact on the longevity of dental composites by an increase in its roughness. It is strongly recommended that clinicians guide their patients, warning them about the risks and consequences of their use.

 

Keywords

Abrasion; Dentifrices; Composites resin; Roughness; Whitening; Abrasive.

Downloads

Download data is not yet available.

Downloads

Additional Files

Published

2016-09-29

How to Cite

1.
Kinoshita RYO, Sgura R, Reis MC, Masuda MS, Prazeres PSL, Romão Júnior W, et al. Effect of whitening dentifrices on surface roughness of dental nanofiller-based composites. Stereomycroscopy and AFM analysis. BDS [Internet]. 2016 Sep. 29 [cited 2025 Aug. 21];19(3):65-74. Available from: https://ojs.ict.unesp.br/index.php/cob/article/view/1271

Issue

Vol. 19 No. 3 (2016): Jul. - Sep. / 2016 - Published September 2016

Section

Clinical or Laboratorial Research

License

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.

Most read articles by the same author(s)