Evaluation of translucency of a nanofilled and a microhybrid resin composites
DOI:
https://doi.org/10.14295/bds.2012.v15i3.825Abstract
Objectives: Color selection is a relevant issue to determine clinical success of esthetic restorations. However as multiple layer technique have been applied, opalescence and translucency parameters are also significant to allow resin composite to match tooth structure. Thus, the aim of this study was to compare different resin composites commonly launched in market to provide enamel translucency effect. Material and Methods: Four resin composites of shade A1 for enamel were tested: nanotechnology composites Filtek Z350 (F) and Grandio (G) were compared to microhybrid composites Filtek Z250 (Z) and Master Fill (M). Eight cylindrical specimens of each resin composite were prepared (6 mm x 2.5 mm), finished and individually stored in distilled water. The color analysis was performed following Cielab system parameters using a spectophotometer (Esfera -X-Rite-SP62 and X-Riteccolor Master CM2). Readings were processed using standard white and black backgrounds. Translucency parameter (TP) of these materials were calculated through the formula TP= [(Lw- Lb)2+ (aw-ab)2 + (bw-bb)2]1/2. Data were statistically analyzed and as a normal distribution was verified, they were submitted to one-way ANOVA and Tukey tests with ?= 0.05 preset. Results: Mean and standard deviations were: F= 35.54+0.34; Z= 39.11+0.39; G= 40.93+0.38 e M= 41.41+0.34. Greater values of translucency were observed to G and M without significant differences between them, and the lower values were attributed to F and Z. Conclusion: The translucency of each material was material dependent. It is suggested that small particle size provokes reduction of translucency of resin composites when enamel shade materials are compared.Downloads
Downloads
Additional Files
Published
How to Cite
Issue
Section
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.
