Journal of Prosthodontic Research
Online ISSN : 1883-9207
Print ISSN : 1883-1958
ISSN-L : 1883-1958

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Mechanical properties and surface roughness of chitosan reinforced heat polymerized denture base resin
Naveen Gopi Chander Jayaraman Venkatraman
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ジャーナル オープンアクセス 早期公開

論文ID: JPR_D_20_00257

この記事には本公開記事があります。
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Purpose: The antifungal property of chitosan (Ch) in denture base resin (DBR) was well established. Ch influence on the mechanical properties of DBR is less studied in the literature and is vital for clinical success of denture. This study estimates the effect of different concentrations of Ch on the flexural strength (FS), fracture toughness (FT), impact strength (IS) and surface roughness (Ra) in heat polymerized DBR.
Methods: A total of 160 samples were divided into 4 groups (n =10) by weight percentage - Ch 0, Ch 5, Ch 10, Ch 15. FS and FT were estimated by three-point bending test. IS was determined by Charpy test. Ra was evaluated by non-contact laser surface profilometer. The tested samples were characterized by scanning electron microscope and Fourier transformation infra-red spectroscopy. Data were statistical analyzed with one-way ANOVA and Post hoc Bonferroni test.
Results: FS, FT and IS improved with Ch addition when compared to control group. Ch5 showed higher “FS, FT, IS. (p<0.001)”. Increased Ra was observed in Ch5 and Ch10 with significant statistical differences among the g roups. (p <0.001) Ch15 displayed decrease in Ra compared to control group.
Conclusions: The addition of Ch to DBR improved the “FS, FT, IS at 5%wt and Ra at 15%wt” of Ch.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 4.0 国際]ライセンスの下に提供されています。
This is an open-access article distributed under the terms of Creative Commons Attribution-NonCommercial License 4.0 (CC BY-NC 4.0), which allows users to distribute and copy the material in any format as long as credit is given to the Japan Prosthodontic Society. It should be noted however, that the material cannot be used for commercial purposes.
https://creativecommons.org/licenses/by-nc/4.0/deed.ja
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