Optimisation of Compressive Strength in Zirconia Nanoclusters of the Bis-GMA &amp; TEGDMA based Dental Composites

Hambire, Umesh; Tripathi, V. K.

doi:10.1016/j.proeng.2013.01.070

Cited by 11 publications

(7 citation statements)

References 12 publications

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“…Hambire et al 154 examined the effect of zirconia cluster as reinforcement on the dental resin restorative material. Silica, glass, and zirconia as nanohybrid fillers at different ratios were used in the experiment.…”

Section: Design Of Experiments and Multi‐criteria Decision Making Opt...mentioning

confidence: 99%

“…Evaluation of performance defining attributes (PDAs) is considered, such as compressive strength, flexural strength, and Vickers hardness, and so forth for the respective applications. A hierarchy structure for different PDAs is illustrated in Figure6.Hambire et al154 examined the effect of zirconia cluster as reinforcement on the dental resin restorative material. Silica, glass, and zirconia as nanohybrid fillers at different ratios were used in the experiment.…”

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confidence: 99%

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Biomaterials for dental composite applications: A comprehensive review of physical, chemical, mechanical, thermal, tribological, and biological properties

Yadav

Meena

Patnaik

2022

Polymers for Advanced Techs

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Section: Design Of Experiments and Multi‐criteria Decision Making Opt...mentioning

confidence: 99%

mentioning

confidence: 99%

Biomaterials for dental composite applications: A comprehensive review of physical, chemical, mechanical, thermal, tribological, and biological properties

Yadav

Meena

Patnaik

2022

Polymers for Advanced Techs

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“…The contents of zirconia fillers can determine the mechanical properties of resin composites. 14 In a recent study, optimum tensile/bending strength, elastic/bending modulus, strain, and toughness were obtained using glass fiber-epoxy composites with 1 wt% silanized zirconia particles, 15 and decreased when zirconia concentrations were increased to 2 wt%. 15 Similarly, increased flexural strength and fracture toughness of glass-based resin composites have been reported with 2.5-5.0 wt% silanized zirconia-silica/zirconia-yttria-silica nanofibers, which also decreased when zirconia-silica concentrations were increased to 7.5%.…”

Section: Introductionmentioning

confidence: 99%

<p>Surface Treatment Of Nanozirconia Fillers To Strengthen Dental Bisphenol A–Glycidyl Methacrylate–Based Resin Composites</p>

Dai¹,

Chen²,

Yang³

et al. 2019

IJN

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Purpose: To investigate the effects of nanozirconia fillers conditioned with 10-methacryloyloxydecyl dihydrogen phosphate (MDP) with or without zirconium hydroxide precoating on bending strength, Vickers hardness, and translucence of dental resin composites. Methods: We obtained nanozirconia fillers coated with different concentrations of Zr(OH) 4 using wet-chemical synthesis. We analyzed coating quality by observing electron-diffraction patterns using transmission electron microscopy. We conditioned zirconia fillers, with or without prior Zr(OH) 4-coating, using MDP-containing primers and evaluated the formation of chemical bonds using nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopy (XPS). We then performed three-point bending-strength tests, Weibull analysis, Vickers hardness, and translucence-parameter analysis with or without addition of different concentrations of zirconia using untreated zirconia fillers as controls. Results: We achieved desirable Zr(OH) 4 coating using 5 mmol/L zirconium chloride. NMR and XPS analysis detected stronger Zr-O-P peaks on MDP-conditioned zirconia fillers with prior Zr(OH) 4-coating compared with MDP-conditioned fillers alone, suggesting that MDP bonding with zirconia was enhanced by zirconium hydroxide. Our three-point bending-strength tests revealed that increasing levels of untreated zirconia fillers decreased the three-point bending strength of the resin composites, while MDP-conditioned zirconia fillers with or without prior Zr(OH) 4 coating improved three-point bending strengths. Adding 5 wt% and 7.5 wt% MDP-conditioned zirconia fillers with prior Zr(OH) 4 coating achieved the highest three-point bending strength. Furthermore, addition of zirconia fillers decreased the translucence of silica-based resin composites. Conclusion: MDP conditioning with prior Zr(OH) 4 coating is recommended for treating nanozirconia fillers of resin composites.

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“…Commonly used fillers are silica fillers, glass and quartz. However, constantly new materials are being developed, which among other things would increase abrasive wear resistance of the fillings (Hambire and Tripathi, 2013). Size of the particles of inorganic phase in the modern dental composites is above 0.04 µm for microfillers and above 0.005 µm for nanofillers (Schmalz, 2009).…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Wear Resistance of the Composite with Microhybrid Structure and Nanocomposite

Pieniak

Walczak

Niewczas

2016

Acta Mechanica Et Automatica

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The aim of the study was to compare microhardness and wear resistance of ceramic-polymer composites with micro and nano-hybrid structure. For the studies commercial composites were used, containing filler particles of the same type but different sizes, nano-sized (Filtek Ultimate) and micro-sized (Filtek Z250) composites. Tribological testing was conducted using ball-on-disc micro-tribometer. Vickers testing method was applied for microhardness studies with the use of Futertech FM 700 device. It has been demonstrated that the wear of Filtek Ultimate is almost twice lower in comparison to wear of Filtek Z250 composite. It has been concluded that the use of filler nanoparticles significantly increased wear resistance of the material. Additionally, lack of correlation between material microhardness and wear resistance has been demonstrated.

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Optimisation of Compressive Strength in Zirconia Nanoclusters of the Bis-GMA & TEGDMA based Dental Composites

Cited by 11 publications

References 12 publications

Biomaterials for dental composite applications: A comprehensive review of physical, chemical, mechanical, thermal, tribological, and biological properties

Biomaterials for dental composite applications: A comprehensive review of physical, chemical, mechanical, thermal, tribological, and biological properties

<p>Surface Treatment Of Nanozirconia Fillers To Strengthen Dental Bisphenol A–Glycidyl Methacrylate–Based Resin Composites</p>

Comparative Study of Wear Resistance of the Composite with Microhybrid Structure and Nanocomposite

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