Comparison of mechanical properties of heat‐polymerized acrylic resin with silver nanoparticles added at different concentrations and sizes

Oyar, Perihan; Sana, Farzin Asghari; Durkan, Rukiye

doi:10.1002/app.45807

Cited by 14 publications

(12 citation statements)

References 30 publications

(47 reference statements)

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“…% of AgNPs. The 40 nm particles did not affect the mechanical parameters of these composites [ 53 ]. The findings proved that the mechanical properties of the otoimplant did not change after the incorporation of AgNPs even after the 12-month incubation.…”

Section: Resultsmentioning

confidence: 99%

Biocompatible Nanocomposite Implant with Silver Nanoparticles for Otology—In Vivo Evaluation

et al. 2018

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The aim of this work was to investigate of biocompatibility of polymeric implants modified with silver nanoparticles (AgNPs). Middle ear prostheses (otoimplants) made of the (poly)acrylonitrile butadiene styrene (ABS) and ABS modified with silver nanoparticles were prepared through extrusion and injection moulding process. The obtained prostheses were characterized by SEM-EDX, micro-CT and mechanical tests, confirming their proper shape, good AgNPs homogenization and mechanical parameters stability. The biocompatibility of the implants was evaluated in vivo on rats, after 4, 12, 24 and 48 weeks of implantation. The tissue-healing process and cytotoxicity of the implants were evaluated on the basis of microscopic observations of the materials morphology after histochemical staining with cytochrome c oxidase (OCC) and acid phosphatase (AP), as well as via micro-tomography (ex vivo). The in vivo studies confirmed biocompatibility of the implants in the surrounding tissue environment. Both the pure ABS and nanosilver-modified ABS implants exhibited a distinct decrease in the area of granulation tissue which was replaced with the regenerating muscle tissue. Moreover, a slightly smaller area of granulation tissue was observed in the surroundings of the silver-doped prosthesis than in the case of pure ABS prosthesis. The kinetics of silver ions releasing from implants was investigated by ICP-MS spectrometry. The measurement confirmed that concentration of the silver ions increased within the implant’s immersion period. Our results showed that middle ear implant with the nanoscale modification is biocompatible and might be used in ossicular reconstruction.

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Section: Resultsmentioning

confidence: 99%

Biocompatible Nanocomposite Implant with Silver Nanoparticles for Otology—In Vivo Evaluation

et al. 2018

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“…Fractures in the dentures usually result from different types of forces like flexural, fatigue, and impact forces. [ 10 11 12 13 14 15 16 ] Beyli and von Fraunhofer[ 12 ] in the year 1980 conducted a study to analyze the causes of fracture of acrylic resin dentures and found that midline fractures in dentures are a flexural fatigue failure. In a similar previous study, Smith DC,[ 10 ] also, concluded midline fractures as a type of fatigue fractures.…”

Section: Discussionmentioning

confidence: 99%

“…[ 13 20 23 30 33 34 ] Recently, more attention has been directed toward the incorporation of nanoparticles into PMMA-based denture base material to improve its properties. [ 4 6 16 19 27 35 36 37 38 39 40 41 42 43 ] Oyar et al . [ 16 ] conducted a study to compare the mechanical properties of heat-polymerized PMMA resin with AgNPs added at different concentrations and sizes, while concluding that the properties of the resultant material depend upon the type of the incorporated nanoparticles, their size, shape, and the concentration and interaction of the particles with the polymer matrix.…”

Section: Discussionmentioning

confidence: 99%

“…[ 4 6 16 19 27 35 36 37 38 39 40 41 42 43 ] Oyar et al . [ 16 ] conducted a study to compare the mechanical properties of heat-polymerized PMMA resin with AgNPs added at different concentrations and sizes, while concluding that the properties of the resultant material depend upon the type of the incorporated nanoparticles, their size, shape, and the concentration and interaction of the particles with the polymer matrix. It has, also, been observed that the material properties of polymer nanocomposites are superior to the pure polymer matrix or composites with larger sized inclusions.…”

Section: Discussionmentioning

confidence: 99%

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Comparative evaluation of impact strength of mechanically modified heat polymerized polymethyl methacrylate (PMMA) resin with addition of 0.5, 1, 2 wt% of silver nanoparticles (AgNPs): An in-vitro study

Mithran,

Rakhra,

Jain

et al. 2023

Journal of Orthodontic Science

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OBJECTIVE: Polymethyl methacrylate (PMMA) is one of the most widely used denture base material because of favorable esthetics and desirable characteristics such as easy handling. Acrylic resins, although, have some inherent disadvantages such as relatively poor physical and mechanical properties. The objective of the present study was to evaluate and compare the impact strength of unmodified and modified heat cure PMMA-based denture base material with addition of different concentrations of silver nanoparticles (AgNPs) (0.5, 1, 2 wt%). METHODS: The present in-vitro study comprised of a total of 60 samples allocated to four groups with Group A samples consisting of heat cure acrylic resin without any modification (used as control); Group B samples consisting of heat cure acrylic resin modified with 0.5 wt% of AgNPs; and subsequently, Group C and Group D samples consisting of heat cure acrylic resin modified with 1 wt% and 2 wt% of AgNPs, respectively. The impact strength of the prepared acrylic samples was evaluated using Izod/Charpy Impact Tester, while the values obtained were tabulated and subjected to statistical analysis. Statistical analysis was done using Statistical Package for Social Sciences (SPSS) version 17.0 (SPSS Inc., Chicago, IL, USA), while one-way analysis of variance and Tukey's multiple post-hoc procedures were used for statistical analysis. P < .05 was considered statistically significant. RESULTS: The highest impact strength was found in Group C samples consisting of heat cure acrylic resin modified with 1 wt% of AgNPs to be closely followed by Group B samples consisting of heat cure acrylic resin modified with 0.5 wt% of AgNPs. Group D samples consisting of heat cure acrylic resin modified with 2 wt% of AgNPs, although, revealed relatively lower impact strength compared to Group B and Group C samples. CONCLUSIONS: Within the limitations of the present study, it was concluded that the impact strength of mechanically modified heat polymerized PMMA resin was significantly enhanced with addition of varying concentrations of AgNPs, although, it was observed that with an increase in the concentration of AgNPs, a subsequent decrease in the tensile strength of the final polymer material was observed.

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“…Several reports investigated dental materials reinforced using micrometer-and nanometer-size materials to create a new composite with enhanced physical and mechanical characteristics [10]. Numerous nanomaterials, such as silver nanoparticles [11], silicon dioxide (SiO2) [12], platinum nanoparticles [13], carbon nanotubes [14], and hybrid nanomaterials [15], were incorporated with PMMA to develop denture bases with improved physical and mechanical properties. For instance, reinforcing PMMA with multiwalled carbon nanotubes (MWCNT) was shown to improve its mechanical and thermal properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material

et al. 2022

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In this study, the mechanical and tribological properties of polymethyl methacrylate (PMMA)-based dentures strengthened by a low content of alumina (Al2O3) nanoparticles were evaluated. PMMA nanocomposites with different weight fractions (0.2, 0.4, 0.6, 0.8, and 1 wt%) of Al2O3 were fabricated, and a sample of pure PMMA was used as a control. Compression, hardness, and wear tests were conducted to investigate the effect of a low Al2O3 filler content on the mechanical and tribological properties of PMMA. The addition of Al2O3 filler improved the mechanical and tribological characteristics of PMMA. The highest elastic modulus and compressive yield strength (3.56 GPa and 138.21 MPa, respectively) were obtained using the PMMA sample with 0.6 wt% of nanoalumina, which represent an increase of 20.27% and 14.7%, respectively, compared with those of the pure PMMA. The fracture toughness and hardness were improved with the increase in the filler content until it reached 0.8 and 1.00 wt%, respectively. The tribological characteristics of PMMA also improved with the addition of Al2O3 nanoparticles. The least coefficient of friction (COF) and wear rate were obtained at a filler content of 0.6 wt%. Therefore, the addition of low amounts of Al2O3 to PMMA-based resins can improve their mechanical and tribological properties such as hardness, elastic modulus, fracture toughness, COF, and wear resistance.

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Comparison of mechanical properties of heat‐polymerized acrylic resin with silver nanoparticles added at different concentrations and sizes

Cited by 14 publications

References 30 publications

Biocompatible Nanocomposite Implant with Silver Nanoparticles for Otology—In Vivo Evaluation

Biocompatible Nanocomposite Implant with Silver Nanoparticles for Otology—In Vivo Evaluation

Comparative evaluation of impact strength of mechanically modified heat polymerized polymethyl methacrylate (PMMA) resin with addition of 0.5, 1, 2 wt% of silver nanoparticles (AgNPs): An in-vitro study

Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material

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