| Autor: |
榊原潤, 小澤 僚太郎, 大野晃教, 熊坂知就, 清宮一秀, 木本克彦, 二瓶智太郎 |
| Zdroj: |
Journal of the Kanagawa Odontological Society / Kanagawa Shigaku; jun2021, Vol. 56 Issue 1, p1-9, 9p |
| Abstrakt: |
Although acrylic resin is frequently used as a denture material, its toughness is inferior to that of other materials and its water-absorbent properties cause significant clinical problems, such as fracture. Improvements in the mechanical strength of the acrylic resin without changing the operation as before are warranted; hence, this study aimed to introduce a new fibrillary reinforcement material. Three-point bending, water absorption, and viscoelasticity tests were conducted on surface-treated acrylic resin samples with and without (control group) the addition of cellulose nanofibers (CNF). The obtained values were subjected to one-way or two-way ANOVA and t-test or multiple comparisons tests using the Bonferroni’s test. The results showed that the modulus of elasticity of the acrylic resin mixed with 1 g of CNF was significantly higher than that of the control. The storage modulus (E’) in the CNF addition group was lower than that in the control group, and the loss tangent (tan δ) showed a shift in the peak temperature to lower than that of the control group. These results suggested that CNF could be used to create dentures with improved durability. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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