Behavior of PMMA Denture Base Materials Containing Titanium Dioxide Nanoparticles: A Literature Review

Gad, Mohammed M.; Abualsaud, Reem

doi:10.1155/2019/6190610

Cited by 90 publications

(109 citation statements)

References 48 publications

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“…Therefore, the used physical mixing method can provide the fast and simple fabrication of hybrid particles using the polar interfacial interactions between polar PMMA microspheres and the polar surface of TiO 2 nanoparticles. It is reported that PMMA and TiO 2 nanoparticles can interact chemically and physically due to the presence of polar functional groups, offering an excellent compatibility between the two materials [ 51 , 52 , 53 ]. Figure 2 a shows the FT-IR spectra of pure TiO 2 nanoparticles (T1), pristine PMMA (NPP), and hybrid particles (NPP@T1).…”

Section: Resultsmentioning

confidence: 99%

Highly Scattering Hierarchical Porous Polymer Microspheres with a High-Refractive Index Inorganic Surface for a Soft-Focus Effect

Yoon

Lee²,

Lee³

et al. 2020

Polymers

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Functional light scattering materials have received considerable attention in various fields including cosmetics and optics. However, a conventional approach based on optically active inorganic materials requires considerable synthetic effort and complicated dispersion processes for special refractive materials. Here, we report a simple and effective fabrication strategy for highly scattering hierarchical porous polymer microspheres with a high-refractive index inorganic surface that mitigates the disadvantages of inorganic materials, producing organic-inorganic hybrid particles with an excellent soft-focus effect. Hierarchical organic-inorganic hybrid particles were synthesized using the simple physical mixing of porous poly (methyl methacrylate) (PMMA) microparticles with different pore sizes and regularities as the organic core and titanium dioxide (TiO2) nanoparticles with different particle sizes as the inorganic shell. The polar noncovalent interactions between polar PMMA microspheres and the polar surface of TiO2 nanoparticles could induce the hierarchical core-shell structure of hybrid particles. The synthesized hybrid particles had increased diffuse reflectance properties of up to 160% compared with single inorganic particles. In addition, the light scattering efficiency and soft-focus effect could be increased further, depending on the size of the TiO2 nanoparticles and the pore characteristics of the PMMA microspheres. The proposed study can provide a facile and versatile way to improve the light scattering performance for potential cosmetics.

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Section: Resultsmentioning

confidence: 99%

Highly Scattering Hierarchical Porous Polymer Microspheres with a High-Refractive Index Inorganic Surface for a Soft-Focus Effect

Yoon

Lee²,

Lee³

et al. 2020

Polymers

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“…PMMA acrylic resin has been widely used in the field of dental materials. Particularly, as a denture base material [1,2]. The physical properties adequacy of PMMA proved the its feasibility for dental applications and hence gained its popularity in dentistry.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydroxyapatite filler concentration on mechanical properties of poly (methyl methacrylate) denture base

Aldabib¹,

Ishak

2020

SN Appl. Sci.

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Poly (methyl methacrylate) or PMMA is an acrylic material has been used widely as a denture base material. The denture base is subjected to various stresses during the function, these include tensile and flexural stresses. The current study was aimed to experimentally evaluate the effect of different filler concentrations on physical and mechanical characteristics of PMMA/HA composite. PMMA reinforced with different ratios (i.e. 0, 5, 10, and 15 wt%) of silane treated HA were prepared to study the effect of HA concentration on the mechanical properties of acrylic denture base material. Tensile, flexural and fracture toughness tests were conducted to evaluate the mechanical performance. The fracture surfaces of all the composites were studied using scanning electron microscopy. The hardness of the composite was investigated using Vickers hardness. Independent t-test was also conducted to evaluate the significant difference in the values measured as a function of different filler loading. Data analyses showed a significant improvement (P < 0.05) in the tensile and flexural modulus of the composite 26% and 27.3% respectively, as a result of increasing the HA loading to 15 wt%. However, no significant difference (P > 0.05) was detected in the tensile and flexural strength as function of HA incorporation. A small increment of only 1.63% and 3% in the tensile and flexural strength respectively, was achieved at very low filler loading i.e. 5 wt%. An improvement of only 7.8% in the surface hardness was observed for PMMA loaded with 15 wt% of HA.

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“…Studies have shown that the addition of TiO 2 nanoparticles into acrylic resin also affected the physical and mechanical properties of the resulting hybrid material. 18,24,25 Reinforcement of PMMA by more than one type of fibre was first suggested by Vallittu in 1997. It was concluded that hybrid reinforcement significantly increased the flexural strength, impact strength, surface roughness, tensile strength, flexural modulus, hardness, thermal conductivity as well as compressive and fatigue strengths.…”

Section: Discussion:-mentioning

confidence: 99%

A Comparative Evaluation of the Impact and Flexural Strengths of High Impact Acrylic Resin Reinforced With Silaned Zirconium Dioxide and Titanium Dioxide Nanoparticles and Its Hybrid Combination - An Invitro Study

G.¹,

P.L²,

Pympallil³

et al. 2020

IJAR

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Heat cure acrylic resin is the most widely used material for the fabrication of removable dentures even today. But due to its low fatigue strength and fracture resistance, the dentures tend to flex and can also fracture. With the advancement in nanoscience, nano-sized fillers were found to exhibit improved fracture resistance. Hence in this study both ZrO 2 (5%) & TiO 2 (1%) nanoparticles and its hybrid combination (2%) were used to comparatively evaluate the impact and flexural strengths of high impact acrylic resin. A total of 45 specimens were subjected to impact strength testing in an impact tester and flexural strength testing using three point bending test in a Universal testing machine respectively. The present study shows that hybrid reinforcement can be considered a better reinforcement option for enhancing the impact and flexural strengths of acrylic resin.

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Behavior of PMMA Denture Base Materials Containing Titanium Dioxide Nanoparticles: A Literature Review

Cited by 90 publications

References 48 publications

Highly Scattering Hierarchical Porous Polymer Microspheres with a High-Refractive Index Inorganic Surface for a Soft-Focus Effect

Highly Scattering Hierarchical Porous Polymer Microspheres with a High-Refractive Index Inorganic Surface for a Soft-Focus Effect

Effect of hydroxyapatite filler concentration on mechanical properties of poly (methyl methacrylate) denture base

A Comparative Evaluation of the Impact and Flexural Strengths of High Impact Acrylic Resin Reinforced With Silaned Zirconium Dioxide and Titanium Dioxide Nanoparticles and Its Hybrid Combination - An Invitro Study

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