Tensile strength and impact strength of color modified 
acrylic resin reinforced with titanium dioxide nanoparticles

Ghahremani, Loghman; Shirkavand, Saeed; Akbari, Faezeh; Sabzikari, Niloofar

doi:10.4317/jced.53620

Cited by 40 publications

(48 citation statements)

References 16 publications

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“…5). Stress concentration results are summarized in Table 2 [17,[35][36][37][38][39][40]. This finding suggests that the higher the stress concentration ratio the best is the stress distribution.…”

Section: Resultsmentioning

confidence: 99%

CAD-FEA modeling and analysis of different full crown monolithic restorations

2018

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Section: Resultsmentioning

confidence: 99%

CAD-FEA modeling and analysis of different full crown monolithic restorations

2018

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“…In recent studies, TiO 2 nanoparticles were used to reinforce acrylic resins; however, it was simultaneously reported to cause color changes . Ghahremani et al modified acrylic resins with color pigments after the addition of TiO 2 nanoparticles. In our study, visible opacity was observed in specimens containing 5% TiO 2 nanoparticles.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Flexural Strength of Different Denture Base Materials Reinforced with Different Nanoparticles

Karcı

Demir

Yazman

2018

Journal of Prosthodontics

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Purpose:To evaluate the effect of adding Al 2 O 3 , SiO 2 , and TiO 2 nanoparticles in ratios of 1, 3, and 5 wt% to different acrylic resins on flexural strength. Materials and Methods: A total of 210 specimens were prepared in 30 groups (n = 7/group) (Control, 1% Al 2 O 3 , 3% Al 2 O 3 , 5% Al 2 O 3 , 1% SiO 2 , 3% SiO 2 , 5% SiO 2 , 1% TiO 2 , 3% TiO 2 , 5% TiO 2 ). The specimens were polished with 200-, 400-, and 600-grit abrasive paper to provide a standard surface before testing and then suspended in distilled water for 30 days. Flexural strength was measured via three-point bending tests. Subsequently, SEM analysis was performed for one specimen from each group. Homogeneity of data was assessed by Kolmogov-Smirnov test followed by two-way ANOVA and Tukey HSD tests (α = 0.05). Results: There was a significant increase in the flexural strength of polymethylmethacrylate (PMMA) after addition of 1% nanoparticles in both heat-polymerized and autopolymerized acrylic resins (p ˂ 0.05). The flexural strength values of the groups to which Al 2 O 3 and TiO 2 nanoparticles were added exceeded those of the group with SiO 2 addition (p ˂ 0.05). The electron microscopy images revealed that the nanoparticles were more homogeneously dispersed in PMMA with higher flexural strength. Conclusions:The mechanical properties of PMMA can be improved by the addition of nanoparticles to PMMA; however, the flexural strength values of PMMA decrease with the addition of nanoparticles at higher percentages (3-5%). Hence, the ideal filler ratio corresponds to 1%.

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“…Khalaf [20] found that acrylic resins added to siwak powder with different percentages can increase flexural strength, but decrease the tensile strength, impact strength, and surface roughness. Ghahremani [21] found that there was an increase in tensile and impact strength on acrylic resins reinforced with nanoparticle titanium oxide.…”

Section: Resultsmentioning

confidence: 99%

Effect of Fish Scale Powder Addition to Flexural Strength of Heat Cured Acrylic Resin

Harahap¹,

Andryas²

2018

Proceedings of the International Dental Conference of Sumatera Utara 2017 (IDCSU 2017)

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Abstract-Heat cured acrylic resin has been used as dental prosthetic devices because of its excellent appearance, simple processing technique and easy repair. The absence of filler on acrylic resin causes limitation of flexural strength at the time of use. Fish scales can be used as filler to reinforce the acrylic resin because they contain collagen and hydroxyapatite minerals. This study was designed to evaluate the flexural strength of acrylic resin reinforced with fish scale powder. Thirty samples was made from heat cured acrylic resin sized 65x10x2 mm. Samples were divided into control group and treatment group which is added by fish scale powder in 5% and 10% by weight. Flexural strength of heat cured acrylic resin was tested by using three point bending method. The result shows that the addition of 5% and 10% fish scale powder decreased flexural strength of heat cured acrylic resin. There is significant differences on flexural strength among all groups (p=0.00).The conclusion is fish scale powder in 5% and 10% did not improved the flexural strength of heat cured acrylic resin.

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Tensile strength and impact strength of color modified acrylic resin reinforced with titanium dioxide nanoparticles

Cited by 40 publications

References 16 publications

CAD-FEA modeling and analysis of different full crown monolithic restorations

CAD-FEA modeling and analysis of different full crown monolithic restorations

Evaluation of Flexural Strength of Different Denture Base Materials Reinforced with Different Nanoparticles

Effect of Fish Scale Powder Addition to Flexural Strength of Heat Cured Acrylic Resin

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