The effects of chitosan addition to glass ionomer cement on microhardness and surface roughness

Objective: The aim of this study was to investigate the surface microhardness and roughness properties of a modified glass ionomer cement formed by adding different ratios of Chitosan, when exposed to saliva and acid erosive gastric acid cycle environments. Methods: Chitosan was added to conventiona...

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Bibliographic Details
Published in:Journal of applied biomaterials & functional materials 2021, Vol.19, p.2280800021989706-2280800021989706
Main Authors: Soygun, Koray, Soygun, Arzu, Dogan, Muharrem Cem
Format: Article
Language:English
Subjects:
Acids
Atomic force microscopy
Biopolymers
Cement
Chitosan
Gastric juice
Glass Ionomer Cements
Materials Testing
Microhardness
Profilometers
Qualitative analysis
Saliva
Subgroups
Surface Properties
Surface roughness
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Summary:Objective: The aim of this study was to investigate the surface microhardness and roughness properties of a modified glass ionomer cement formed by adding different ratios of Chitosan, when exposed to saliva and acid erosive gastric acid cycle environments. Methods: Chitosan was added to conventional glass ionomer liquid at volumes of 5% and 10%. The chitosan-modified glass ionomer was used for the experimental group, and traditional glass ionomer formed the control group. All the groups were separated into two subgroups. One of these subgroups was subjected to a gastric acid erosive cycle. The other subgroup was immersed in artificial saliva. Microhardness, surface roughness with optical profilometer and AFM measurements of all the samples were taken. Qualitative surface topographic evaluations were made using a SEM. The data were analyzed by Kruskal-Wallis and Mann Whitney U-test for pairwise comparisons of the groups at the 0.05 level of significance. Results: The addition of chitosan to GIC had a positive effect on the microhardness values. The gastric acid erosive cycle application negatively affected the microhardness and surface roughness properties of the sample groups. Conclusion: The chitosan-modified glass ionomer cement samples showed clinically acceptable surface roughness values. Although the results of the addition of the biopolymer, chitosan, to GIC are promising, there is a need for further in-vivo studies.
ISSN:2280-8000
2280-8000
DOI:10.1177/2280800021989706