Incorporation of Chitosan Nanoparticles into a Cold-Cure Ortho-Dontic Acrylic Resin: Effects on Mechanical Properties
| Autor: | Abdolrasoul Rangrazi, Mostafa Shahabi, Sorour Movahedi Fazel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
acrylic resin
Materials science Biomedical Engineering Nanoparticle Bioengineering 02 engineering and technology mechanical properties lcsh:Technology Biochemistry Indentation hardness Article Biomaterials Chitosan 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Flexural strength Acrylic resin lcsh:T technology industry and agriculture Izod impact strength test 030206 dentistry 021001 nanoscience & nanotechnology Antimicrobial Compressive strength chemistry visual_art visual_art.visual_art_medium Molecular Medicine nanoparticles chitosan 0210 nano-technology Biotechnology Nuclear chemistry |
| Zdroj: | Biomimetics Volume 6 Issue 1 Biomimetics, Vol 6, Iss 7, p 7 (2021) |
| ISSN: | 2313-7673 |
| DOI: | 10.3390/biomimetics6010007 |
| Popis: | Improvement of the antibacterial properties of acrylic resins, used in the construction of removable orthodontic appliances, is an important strategy to reduce the incidence of caries and oral diseases in orthodontic treatments. The addition of antimicrobial agents to acrylic resins is one of the effective methods to enhance the antimicrobial properties of these materials. However, one main concern is that modification of acrylic resin has negative effects on its mechanical properties. Recently, chitosan nanoparticles (NPs), as biocompatible and biodegradable polysaccharides with remarkable antimicrobial properties, have been used in different areas of dentistry and medicine. This study aimed to investigate the effects of adding chitosan NPs on the mechanical properties of a cold-cure orthodontic acrylic resin. The chitosan NPs were added to the acrylic resin in various weight percentages: 0% (control), 0.5%, 1%, 2%, and 4%. The flexural strength, compressive strength, Vickers microhardness, and impact strength measurements were performed for all five groups. The results showed that adding up to 1% (w/w) chitosan NPs to an acrylic resin had no significant negative effects on its flexural strength and compressive strength, while it decreased these parameters at weight percentages of 2% and 4% (w/w). The results also revealed that modification of acrylic resin with chitosan NPs up to 4% had no significant negative effects on the microhardness and impact strength of acrylic resin. In conclusion, the addition of chitosan NPs up to 1% (w/w) had no significant negative effects on the mechanical properties of cold-cure acrylic resin. |
| Databáze: | OpenAIRE |
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