scholarly journals Effect of Storage in Distilled Water for Three Months on the Antimicrobial Properties of Poly(methyl methacrylate) Denture Base Material Doped with Inorganic Filler

Materials ◽  
2016 ◽  
Vol 9 (5) ◽  
pp. 328 ◽  
Author(s):  
Grzegorz Chladek ◽  
Katarzyna Basa ◽  
Anna Mertas ◽  
Wojciech Pakieła ◽  
Jarosław Żmudzki ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Antimicrobial Properties ◽  
Base Material ◽  
Inorganic Filler ◽  
Distilled Water ◽  
Denture Base ◽  
Poly Methyl Methacrylate

scholarly journals Effect of Antibacterial Silver-Releasing Filler on the Physicochemical Properties of Poly(Methyl Methacrylate) Denture Base Material

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4146 ◽  
Author(s):  
Grzegorz Chladek ◽  
Katarzyna Pakieła ◽  
Wojciech Pakieła ◽  
Jarosław Żmudzki ◽  
Marcin Adamiak ◽  
...  
Keyword(s):  
Impact Strength ◽  
Flexural Strength ◽  
Methyl Methacrylate ◽  
Flexural Modulus ◽  
Base Material ◽  
Distilled Water ◽  
Denture Base ◽  
Inorganic Particles ◽  
Poly Methyl Methacrylate ◽  
Enhanced Solubility

Colonization of polymeric dental prosthetic materials by yeast-like fungi and the association of these microorganisms with complications occurring during prosthetic treatment are important clinical problems. In previously presented research, submicron inorganic particles of silver sodium hydrogen zirconium phosphate (S–P) were introduced into poly(methyl methacrylate) (PMMA) denture base material which allowed for obtaining the antimicrobial effect during a 90 day experiment. The aim of the present study was to investigate the flexural strength, impact strength, hardness, wear resistance, sorption, and solubility during three months of storage in distilled water. With increasing S–P concentration after 2 days of conditioning in distilled water, reduced values of flexural strength (107–72 MPa), impact strength (18.4–5.5 MPa) as well as enhanced solubility (0.95–1.49 µg/mm3) were registered, but they were at acceptable levels, and the sorption was stable. Favorable changes included increased hardness (198–238 MPa), flexural modulus (2.9–3.3 GPa), and decreased volume loss during wear test (2.9–0.2 mm3). The percentage changes of the analyzed properties during the 90 days of storage in distilled water were similar for all materials.

scholarly journals Heat-cured poly(methyl methacrylate) resin incorporated with different food preservatives as an anti-microbial denture base material

2020 ◽  
Author(s):  
Montri Ratanajanchai ◽  
Widchaya Kanchanavasita ◽  
Kallaya Suputtamongkol ◽  
Amonrat Wonglamsam ◽  
Sirinporn Thamapipol ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Base Material ◽  
Food Preservatives ◽  
Denture Base ◽  
Poly Methyl Methacrylate

Diffusion and solubility of commercial poly(methyl methacrylate) denture base material modified with dimethyl itaconate and di-n-butyl itaconate during water absorption/desorption cycles

2012 ◽  
Vol 61 (8) ◽  
pp. 1272-1278 ◽  
Author(s):  
Pavle Spasojević ◽  
Dragoslav Stamenković ◽  
Rada Pjanović ◽  
Nevenka Bošković-Vragolović ◽  
Jelena Dolić ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Water Absorption ◽  
Base Material ◽  
Denture Base ◽  
Poly Methyl Methacrylate ◽  
Dimethyl Itaconate

scholarly journals The Mechanical Properties of a Poly(methyl methacrylate) Denture Base Material Modified with Dimethyl Itaconate and Di-n-butyl Itaconate

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Pavle Spasojevic ◽  
Milorad Zrilic ◽  
Vesna Panic ◽  
Dragoslav Stamenkovic ◽  
Sanja Seslija ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Surface Hardness ◽  
Base Material ◽  
Dynamic Mechanical Properties ◽  
Denture Base ◽  
Mean Values ◽  
Poly Methyl Methacrylate ◽  
Base Materials ◽  
Wide Range

This study investigates a wide range of clinically relevant mechanical properties of poly(methyl methacrylate) (PMMA) denture base materials modified with di-methyl itaconate (DMI) and di-n-butyl itaconate (DBI) in order to compare them to a commercial PMMA denture base material. The commercial denture base formulation was modified with DMI and DBI by replacing up to 10 wt% of methyl methacrylate (MMA) monomer. The specimens were prepared by standard bath curing process. The influence of the itaconate content on hardness, impact strength, tensile, and thermal and dynamic mechanical properties was investigated. It is found that the addition of di-n-alkyl itaconates gives homogenous blends that show decreased glass transition temperature, as well as decrease in storage modulus, ultimate tensile strength, and impact fracture resistance with increase in the itaconate content. The mean values of surface hardness show no significant change with the addition of itaconates. The magnitude of the measured values indicates that the poly(methyl methacrylate) (PMMA) denture base material modified with itaconates could be developed into a less toxic, more environmentally and patient friendly product than commercial pure PMMA denture base material.

Poly(methyl methacrylate) denture base composites enhancement by various combinations of nitrile butadiene rubber/treated ceramic fillers

2015 ◽  
Vol 30 (8) ◽  
pp. 1069-1090 ◽  
Author(s):  
AO Alhareb ◽  
HBM Akil ◽  
ZAB Ahmad
Keyword(s):  
Methyl Methacrylate ◽  
Base Material ◽  
Butadiene Rubber ◽  
Stabilized Zirconia ◽  
Denture Base ◽  
X Ray ◽  
Poly Methyl Methacrylate ◽  
Nitrile Butadiene Rubber ◽  
Ceramic Fillers ◽  
The Impact

Nitrile butadiene rubber (NBR) particles as impact modifier mixed with treated ceramic fillers (aluminum oxide, yttria-stabilized zirconia, and silicon dioxide) were used to reinforce poly(methyl methacrylate) (PMMA) denture base material. The powder components are PMMA, benzoyl peroxide, NBR (5, 7.5, and 10 wt%), and ceramic fillers (5 wt%) treated with silane. The liquid components are 90% methyl methacrylate and 10% ethylene glycol dimethacryate. Fourier transform infrared spectroscopy and energy dispersive X-ray spectroscopy analyses confirmed that the ceramic fillers were successful. The morphology of fracture surfaces of specimens was characterized using field emission scanning electron microscopy. The impact strength (IS) and fracture toughness ( KIC) improved significantly. IS increased to 56% (8.26 kJ m−2) and 73% (2.77 MPa m1/2) for KIC when compared with unreinforced PMMA matrix. Statistical analyses of data results were significantly improved ( p < 0.005). PMMA denture base reinforced by NBR particles mixed with treated ceramic fillers are ideally suited for dentistry applications with the ability to withstand high mastication forces.

scholarly journals Evaluating surface roughness of a polyamide denture base material in comparison with poly (methyl methacrylate)

2010 ◽  
Vol 52 (4) ◽  
pp. 577-581 ◽  
Author(s):  
Menaka A. Abuzar ◽  
Suman Bellur ◽  
Nancy Duong ◽  
Billy B. Kim ◽  
Priscilla Lu ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Methyl Methacrylate ◽  
Base Material ◽  
Denture Base ◽  
Poly Methyl Methacrylate

scholarly journals Mechanical Properties of Surface-Charged Poly(Methyl Methacrylate) as Denture Resins

2009 ◽  
Vol 2009 ◽  
pp. 1-6 ◽  
Author(s):  
Sang E. Park ◽  
Maggie Chao ◽  
P. A. Raj
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Methacrylic Acid ◽  
Acid Content ◽  
Testing Machine ◽  
Base Material ◽  
Strain History ◽  
Dental Resin ◽  
Denture Base ◽  
Poly Methyl Methacrylate

The aim of this study was to examine the mechanical properties of a new surface-modified denture resin for its suitability as denture base material. This experimental resin is made by copolymerization of methacrylic acid (MA) to poly(methyl methacrylate) (PMMA) to produce a negative charge. Four experimental groups consisted of Orthodontic Dental Resin (DENTSPLY Caulk) as a control and three groups of modified PMMA (mPMMA) produced at differing ratios of methacrylic acid (5 : 95, 10 : 90, and 20 : 80 MA : MMA). A 3-point flexural test using the Instron Universal Testing Machine (Instron Corp.) measured force-deflection curves and a complete stress versus strain history to calculate the transverse strength, transverse deflection, flexural strength, and modulus of elasticity. Analysis of Variance and Scheffe Post-test were performed on the data. Resins with increased methacrylic acid content exhibited lower strength values for the measured physical properties. The most significant decrease occurred as the methacrylic acid content was increased to 20%mPMMA. No significant differences atP<.05were found in all parameters tested between the Control and 5%mPMMA.

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