Effect of alumina, silk and ceria short fibers in reinforcement of Bis-GMA/TEGDMA dental resin

Rameshbabu, Arun Prabhu; Mohanty, S.; Bankoti, Kamakshi; Ghosh, Prahlad C.

doi:10.1016/j.compositesb.2014.11.019

Cited by 29 publications

(14 citation statements)

References 28 publications

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“…Viscosity decreases with increasing shear rate for all UDMA‐MMA composites enhanced with either G or HA, indicating thixotropic or non‐Newtonian behavior 43,44 . Viscosity increases with increasing G or HA concentration, which is expected in additive containing polymers 13,45,46 . The viscosity at a shear rate of 10 s −1 for the composites containing G ranges from 0.024 ± 0.001 to 0.043 ± 0.001 Pa∙s, while the viscosity for composites containing HA ranges from 0.024 ± 0.001 to 0.074 ± 0.001 Pa∙s.…”

Section: Resultsmentioning

confidence: 84%

“…The additives have a direct influence on the mechanical properties and viscosity of the adhesive, 6–9 with the effect being dependent on the size, morphology, and weight fraction of the additive 10 . Inorganic additives incorporated in adhesives to improve mechanical properties include silicon dioxide (SiO 2 ), titanium dioxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), cerium oxide (CeO 2 ), and niobium pentoxide (Nb 2 O 5 ) 11–14 . Here we focus on two different additives, graphene (G) and hydroxyapatite (HA), which are of interest because of their functionality.…”

Section: Introductionmentioning

confidence: 99%

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Low‐weight fractions of graphene and hydroxyapatite enhance mechanics in photocured methacrylate adhesives

Alabdali

Irizarry

Reiter

et al. 2021

J of Applied Polymer Sci

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In many applications, it is desirable for photocured adhesives to have high‐mechanical strength in the cured state, but relatively low viscosity when liquid. This was achieved by adding less than 0.5 wt% hydroxyapatite and graphene to methyl methacrylate with diurethane dimethacrylate (UDMA‐MMA). Nanoindentation shows hardness increasing by 30–40% and indentation modulus by >30% compared to UDMA‐MMA on its own. Rheometry shows only a small increase in uncured viscosity for the liquid state. The additives affect the optical properties, mobility of free radicals, photocuring, and degree of conversion, the effects of which are seen in Fourier transform infrared and micro‐Raman spectra. Thermographic images taken during curing show that the additives impact the photocuring process. In addition, changes in intermolecular bonding are seen in the vibrational spectra when the additives are present. The enhanced mechanical properties are attributed to the observed changes in photocuring and bonding.

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Section: Resultsmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Low‐weight fractions of graphene and hydroxyapatite enhance mechanics in photocured methacrylate adhesives

Alabdali

Irizarry

Reiter

et al. 2021

J of Applied Polymer Sci

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show abstract

“…As composite light curing is conceived, light intensity and exposure time are the main variables to be considered, and the product between these two variables provides the light energy dose per unit area. It has been reported that similar composite properties are obtained using similar energy doses [ 52 ], although some differences may be found as high light intensity and short exposure time are used [ 12 , 26 ]. When using a laser unit, the main difficulty is the determination of the light intensity.…”

Section: Discussionmentioning

confidence: 99%

“…The light curing process is an important factor affecting the performance of the composite restoration; in particular, mechanical properties strongly depend on the depth of cure and degree of conversion [ 11 , 12 , 13 ]. During the last decades, a variety of light curing units (LCUs) have been developed in order to improve the quality of restorative materials [ 3 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Thermal Properties of Dental Composites Cured with CAD/CAM Assisted Solid-State Laser

et al. 2018

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Over the last three decades, it has been frequently reported that the properties of dental restorative composites cured with argon laser are similar or superior to those achieved with conventional halogen and light emitting diode (LED) curing units. Whereas laser curing is not dependent on the distance between the curing unit and the material, such distance represents a drawback for conventional curing units. However, a widespread clinical application of this kind of laser remains difficult due to cost, heavy weight, and bulky size. Recently, with regard to the radiation in the blue region of the spectrum, powerful solid-state lasers have been commercialized. In the current research, CAD (computer-aided design)/CAM (computer-aided manufacturing) assisted solid-state lasers were employed for curing of different dental restorative composites consisting of micro- and nanoparticle-reinforced materials based on acrylic resins. Commercial LED curing units were used as a control. Temperature rise during the photopolymerisation process and bending properties were measured. By providing similar light energy dose, no significant difference in temperature rise was observed when the two light sources provided similar intensity. In addition, after 7 days since curing, bending properties of composites cured with laser and LED were similar. The results suggested that this kind of laser would be suitable for curing dental composites, and the curing process does not suffer from the tip-to-tooth distance.

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“…FGMs. The other group of hybrid materials are FGMs 35 which are going to find a broad range of applications in biomedicine including dental implants, 2,36,37 hip and knee prostheses, 38,39 cartilage replacements, 40 and so on. FGMs refer to heterogeneous composites usually tailored to have a compositional and/or structural gradient selectively from one side of the engineering part to the other or from the core of it to the surface.…”

Section: Non-homogeneous and Multi-functional Materialsmentioning

confidence: 99%

State of the art review on design and manufacture of hybrid biomedical materials: Hip and knee prostheses

Bahraminasab

Farahmand

2017

Proc Inst Mech Eng H

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The trend in biomaterials development has now headed for tailoring the properties and making hybrid materials to achieve the optimal performance metrics in a product. Modern manufacturing processes along with advanced computational techniques enable systematical fabrication of new biomaterials by design strategy. Functionally graded materials as a recent group of hybrid materials have found numerous applications in biomedical area, particularly for making orthopedic prostheses. This article, therefore, seeks to address the following research questions: (RQ1) What is the desired structure of orthopedic hybrid materials? (RQ2) What is the contribution of the literature in the development of hybrid materials in the field of orthopedic research? (RQ3) Which type of manufacturing approaches is prevalently used to build these materials for knee and hip implants? (RQ4) Is there any inadequacy in the methods applied?

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Effect of alumina, silk and ceria short fibers in reinforcement of Bis-GMA/TEGDMA dental resin

Cited by 29 publications

References 28 publications

Low‐weight fractions of graphene and hydroxyapatite enhance mechanics in photocured methacrylate adhesives

Low‐weight fractions of graphene and hydroxyapatite enhance mechanics in photocured methacrylate adhesives

Mechanical and Thermal Properties of Dental Composites Cured with CAD/CAM Assisted Solid-State Laser

State of the art review on design and manufacture of hybrid biomedical materials: Hip and knee prostheses

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