Influence of Silver Nanoparticles Incorporation on Flexural Strength of Heat-cure Acrylic Denture Base Resin Materials

Alla, Rama Krishna; Swamy, K N Raghavendra; Vyas, Ritu; Konakanchi, Anusha; Guduri, Vineeth; Gadde, Praveen

doi:10.9734/arrb/2017/36581

Cited by 26 publications

(43 citation statements)

References 8 publications

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“…Furthermore, the compatibility between the polymeric matrix and the nanoparticles is improved due to formation of more favorable polar interactions between C= O groups of the PMMA chains and AgNPs. (24,27) On the other hand, this result came as disagreement with previous studies. The results of their study indicated that incorporation of AgNps significantly decreased the strength of PMMA.…”

Section: Discussioncontrasting

confidence: 87%

“…Therefore, the net effect of embedding metal nano-particles was to weaken the polymer. (23,24) Similar reasons were cited by Sehjpal and Sod, (25) who reported that addition of silver, aluminum or copper powder to PMMA at a concentration of 25% by volume significantly decreased (by as much as 35%) the tensile strength of the acrylic resin polymer.…”

Section: Discussionsupporting

confidence: 55%

“…· Silver nano-particles incorporation to repair self-cure acrylic resin; using electronic analytical balance (Sartorius, Biopharmaceutical and Laboratories, Germany) with an accuracy of 0.0001-gram, pre-weighed Silver nano-particles (0.50 wt%) (24) were added separately to repair self-cure acrylic resin powder and thoroughly mixed with mechanical mixer to ensure distribution of nano-particles. Repair surfaces were painted with monomer, remounted into mold to preserve the required repair space.…”

Section: Repair Procedurementioning

confidence: 99%

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Effect of Incorporation of Silver Nano-Particles on the Repairability of Conventional and Microwave Denture Bases

Samman

Segai

El-Ghazawy

2018

Egyptian Dental Journal

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Background: Repeated fracture of denture base is a common problem in prosthodontics, it represents an annoyance for the clinician. Therefore, the possibility of increasing repairability using new reinforcement materials is of great interest to prosthodontists. Aim of the study:This study aimed to evaluate the effects of incorporation of silver nano-particles on the flexural strength of repaired polymethylmethacrylate (PMMA) and microwave denture bases.Materials and methods: thirty-six specimens of conventional and microwave denture base materials were fabricated (18 for each) and divided into three subgroups according to surface design (Dovetail, 45° bevels and butt joints). Silver nano-particles was added to repair cold cureacrylic resin powder. A three -point bending test was used to measure flexural strength. The results were analyzed with a P-value of <0.05 being significant.Results: totally it was found that repaired Microwave group recorded statistically nonsignificant (p>0.05) higher flexure strength mean value. Silver nano-particles modified cold cure repaired subgroup recorded statistically significant (p<0.05) higher flexure strength mean value than cold cure repaired subgroup mean value. The difference between repair surface design subgroups was statistically non-significant (p>0.05). Conclusion:Incorporation of silver nano-particles into the repair resin improved the flexural strength of repaired denture base

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Section: Discussioncontrasting

confidence: 87%

Section: Discussionsupporting

confidence: 55%

Section: Repair Procedurementioning

confidence: 99%

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Effect of Incorporation of Silver Nano-Particles on the Repairability of Conventional and Microwave Denture Bases

Samman

Segai

El-Ghazawy

2018

Egyptian Dental Journal

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“…However, it has some disadvantages such as polymerization shrinkage, relatively low flexural strength, lower impact strength, and low fatigue resistance (38) . The failure of PMMA denture base material is most likely in the form of fracture either due to flexural fatigue or impact forces (5,11,39,40) .…”

Section: Discussionmentioning

confidence: 99%

“…PMMA acrylic resin is the most commonly used material for the fabrication of complete and partial denture bases which may be attributed to its ease of fabrication, easy repair, low cost, lightweight, and color matching ability (1)(2)(3)(4) . However, this material is not fulfilling the all ideal requirements of denture base material and has many shortcomings which can cause prosthesis failure (5,6) .…”

Section: Introductionmentioning

confidence: 99%

Effect of Incorporation of Henna and Silver-nanoparticles on Surface Properties of PMMA Acrylic Resin

Fayad

Alwafy

Abdelrahim

et al. 2020

Al-Azhar Assiut Dental Journal

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Aim: This study was aimed to evaluate the effect of Henna fillers and silvernanoparticles (Ag-Nps) fillers on surface properties of PMMA acrylic resin. Subjects and methods: One type of conventional heat-cured acrylic resin (Vertex tm Rapid simplified), Henna with a concentration of 1% by weight (Egyptian Local industry), and silver nanoparticles (Ag-Nps) with a concentration of 0.5% by weight (Nano-gate Company Egypt); were selected for this study. The different fillers were added to the polymer powder and was stirred with an electric mixer before mixing with monomer, mixing, packing, and processing was done using the conventional water bath method. After processing, all specimens were finished and polished, then kept in distilled water till tested. All modified and unmodified (control) specimens were used to measure surface hardness and surface roughness. Statistical data analysis was conducted via SPSS program. Results: Incorporation of Henna and Ag-Nps significantly decrease surface hardness of PMMA acrylic resin. While they insignificantly decrease its surface roughness. Conclusion: Surface hardness of PMMA acrylic resin adversely affected by the incorporation of fillers, while surface roughness improved.

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Aluminum zirconate nanoparticles in etch and rinse adhesive to caries affected dentine: An in‐vitro scanning electron microscopy, elemental distribution, antibacterial, degree of conversion and micro‐tensile bond strength assessment

Niazi,

Luddin,

Alghawazi

et al. 2024

Microscopy Res & Technique

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To incorporate different concentrations of Al2O9Zr3 (1%, 5%, and 10%) nanoparticles (NP) into the ER adhesive and subsequently assess the impact of this addition on the degree of conversion, μTBS, and antimicrobial efficacy. The current research involved a wide‐ranging examination that merged various investigative techniques, including the application of scanning electron microscopy (SEM) for surface characterization of NP coupled with energy‐dispersive x‐ray spectroscopy (EDX), Fourier‐transform infrared (FTIR) spectroscopy, μTBS testing, and microbial analysis. Teeth were divided into four groups based on the application of modified and unmodified three‐step ER adhesive primer. Group 1 (0% Al2O9Zr3 NPs) Control, Group 2 (1% Al2O9Zr3 NPs), Group 3 (5% Al2O9Zr3 NPs), and Group 4 (10% Al2O9Zr3 NPs). EDX analysis of Al2O9Zr3 NPs was performed showing elemental distribution in synthesized NPs. Zirconium (Zr), Aluminum (Al), and Oxides (O2). After primer application, an assessment of the survival rate of Streptococcus mutans was completed. The FTIR spectra were analyzed to observe the characteristic peaks indicating the conversion of double bonds, both before and after the curing process, for the adhesive Etch and rinse containing 1,5,10 wt% Al2O9Zr3 NPs. μTBS and failure mode assessment were performed using a Universal Testing Machine (UTM) and stereomicroscope respectively. The μTBS and S.mutans survival rates comparison among different groups was performed using one‐way ANOVA and Tukey post hoc (p = .05). Group 4 (10 wt% Al2O9Zr3 NPs + ER adhesive) specimens exhibited the minimum survival of S.mutans (0.11 ± 0.02 CFU/mL). Nonetheless, Group 1 (0 wt% Al2O9Zr3 NPs + ER adhesive) displayed the maximum surviving S.mutans (0.52 ± 0.08 CFU/mL). Moreover, Group 2 (1 wt% Al2O9Zr3 NPs + ER adhesive) (21.22 ± 0.73 MPa) samples displayed highest μTBS. However, the bond strength was weakest in Group 1 (0 wt% Al2O9Zr3 NPs + ER adhesive) (14.13 ± 0.32 MPa) study samples. The etch‐and‐rinse adhesive exhibited enhanced antibacterial activity and micro‐tensile bond strength (μTBS) when 1% Al2O9Zr3 NPs was incorporated, as opposed to the control group. Nevertheless, the incorporation of Al2O9Zr3 NPs led to a decrease in DC.Research Highlights 10 wt% Al2O9Zr3 NPs + ER adhesive specimens exhibited the minimum survival of S.mutans. 1 wt% Al2O9Zr3 NPs + ER adhesive samples displayed the most strong composite/CAD bond. The highest DC was observed in Group 1: 0 wt% Al2O9Zr3 NPs + ER adhesive.

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Influence of Silver Nanoparticles Incorporation on Flexural Strength of Heat-cure Acrylic Denture Base Resin Materials

Cited by 26 publications

References 8 publications

Effect of Incorporation of Silver Nano-Particles on the Repairability of Conventional and Microwave Denture Bases

Effect of Incorporation of Silver Nano-Particles on the Repairability of Conventional and Microwave Denture Bases

Effect of Incorporation of Henna and Silver-nanoparticles on Surface Properties of PMMA Acrylic Resin

Aluminum zirconate nanoparticles in etch and rinse adhesive to caries affected dentine: An in‐vitro scanning electron microscopy, elemental distribution, antibacterial, degree of conversion and micro‐tensile bond strength assessment

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