Color stability and surface roughness of chitosan- and nanodiamond-modified bisacrylic resin

Color stability and surface roughness of chitosan- and nanodiamond-modified bisacrylic resin

The aim of this study is to evaluate the effect of chitosan or nanodiamond incorporation on the color stability and surface roughness of a bisacrylic resin subjected to artificial aging. Four bisacrylic resins were evaluated, namely, control, chitosan-modified material, nanodiamond-modified material...

Full description

Saved in:
Bibliographic Details
Published in:Brazilian oral research Vol. 33; p. e024
Main Authors: Perchyonok, Victoria Tamara, Souza, John, Küll, Marcela Fernanda, Suzuki, Thaís Yumi Umeda, Maluly-Proni, Ana Teresa, Santos, Paulo Henrique Dos
Format: Journal Article
Language:English
Published: Brazil Sociedade Brasileira de Pesquisa Odontológica - SBPqO 01-01-2019
Sociedade Brasileira de Pesquisa Odontológica
Subjects:
Acrylic Resins - chemistry
Analysis of Variance
Carbonated Beverages
Chitosan
Chitosan - chemistry
Color
Composite Resins - chemistry
Dental Restoration, Temporary
Dentistry
DENTISTRY, ORAL SURGERY & MEDICINE
Materials Testing
Microscopy, Electron, Scanning
Nanodiamonds
Nanodiamonds - chemistry
Reference Values
Reproducibility of Results
Spectrophotometry
Statistics, Nonparametric
Surface Properties
Time Factors
Water - chemistry
Wine
Nanodiamonds
Chitosan
Dental Restoration, Temporary
Surface Properties
Color
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The aim of this study is to evaluate the effect of chitosan or nanodiamond incorporation on the color stability and surface roughness of a bisacrylic resin subjected to artificial aging. Four bisacrylic resins were evaluated, namely, control, chitosan-modified material, nanodiamond-modified material, and chitosan-nanodiamond-modified material. Twenty-four specimens were prepared for each material. The surface roughness was determined using a profilometer with a cut-off of 0.25 mm. The baseline color was measured according to the CIE L*a*b* system using a reflectance spectrophotometer. After these tests, the specimens were individually immersed in cola soft drink, red wine, or distilled water (n = 8) for 28 days. After the aging, the surface roughness and final color were re-evaluated. The color stability was determined using the difference between the coordinates obtained before and after the aging process. The data on roughness and color change were evaluated using ANOVA and the Tukey test (α = 0.05). The results show that the incorporation of nanodiamonds and chitosan into a bisacrylic resin provided a better color stability to the materials (p = 0.007). The storage in red wine resulted in a higher variation in the surface roughness values, especially when only the nanodiamond was incorporated to the material (p < 0.05). The incorporation of both chitosan and nanodiamonds are promising in providing an improvement in the properties of the bisacrylic resin when they are simultaneously incorporated in the product.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1806-8324
1807-3107
1807-3107
DOI:10.1590/1807-3107BOR-2019.VOL33.0024