scholarly journals Effect of zinc oxide nanoparticles on the flexural strength of polymethylmethacrylate denture base resin

2020 ◽  
pp. 31-35 ◽  
Author(s):  
Santhanam Vikram ◽  
N. Gopi Chander
Keyword(s):  
Zinc Oxide ◽  
Flexural Strength ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Denture Base ◽  
Base Resin ◽  
Denture Base Resin

scholarly journals Effects of SiO2 Incorporation on the Flexural Properties of a Denture Base Resin: An In Vitro Study

2021 ◽  
Author(s):  
Sara T. Alzayyat ◽  
Ghadah A. Almutiri ◽  
Jawhara K. Aljandan ◽  
Raneem M. Algarzai ◽  
Soban Q. Khan ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Flexural Strength ◽  
Testing Machine ◽  
Base Material ◽  
Bending Test ◽  
Control Group ◽  
Denture Base ◽  
Nano Sio2 ◽  
Base Resin ◽  
Denture Base Resin

Abstract Objective The aim of this study was to evaluate the effects of the addition of low-silicon dioxide nanoparticles (nano-SiO2) on the flexural strength and elastic modulus of polymethyl methacrylate (PMMA) denture base material. Materials and Methods A total of 50 rectangular acrylic specimens (65 × 10 × 2.5 mm3) were fabricated from heat-polymerized acrylic resin. In accordance with the amount of nano-SiO2, specimens were divided into the following five groups (n = 10 per group): a control group with no added SiO2, and four test groups modified with 0.05, 0.25, 0.5, and 1.0 wt% nano-SiO2 of acrylic powder. Flexural strength and elastic modulus were measured by using a 3-point bending test with a universal testing machine. A scanning electron microscope was used for fracture surface analyses. Data analyses were conducted through analysis of variance and Tukey’s post hoc test (α = 0.05). Results Compared with the control group, flexural strength and modulus of elasticity tended to significantly increase (p ˂ 0.001) with the incorporation of nano-SiO2. In between the reinforced groups, the flexural strength significantly decreased (p ˂ 0.001) as the concentrations increased from 0.25 to 1.0%, with the 1.0% group showing the lowest value. Furthermore, the elastic modulus significantly increased (p ˂ 0.001) at 0.05% followed by 1.0%, 0.25%, 0.5%, and least in control group. Conclusion A low nano-SiO2 addition increased the flexural strength and elastic modulus of a PMMA denture base resin.

scholarly journals The Impact of Polymerization Technique and Glass-Fiber Reinforcement on the Flexural Properties of Denture Base Resin Material

2020 ◽  
Vol 14 (01) ◽  
pp. 092-099 ◽  
Author(s):  
Ahmad M. Al-Thobity
Keyword(s):  
Elastic Modulus ◽  
Flexural Strength ◽  
Glass Fiber ◽  
Fiber Reinforcement ◽  
Denture Base ◽  
Long Cycle ◽  
Base Resin ◽  
Glass Fiber Reinforcement ◽  
The Impact ◽  
Denture Base Resin

Abstract Objective Different polymerization and reinforcement techniques have been tested to enhance the mechanical characteristics of denture base acrylic resins. The goal of the present study was to evaluate the influence of autoclave polymerization techniques with glass fiber reinforcement on the flexural strength and elastic modulus of polymethyl methacrylate denture base resins. Materials and Methods Ninety specimens were fabricated from heat-polymerized acrylic resin and randomly distributed depending on the polymerization technique into three groups (n = 30): water bath polymerization, short-cycle autoclave polymerization, and long-cycle autoclave polymerization. Each group was further divided into three subgroups (n = 10) based on the concentration of glass fiber 0, 2.5, and 5wt%. The flexural strength and elastic modulus were investigated using a universal testing machine. One-way ANOVA and Tukey’s post hoc test were performed to analyze the results (α = 0.05). Results The flexural strength and elastic modulus values were significantly higher in 5wt% glass fiber reinforced long-cycle autoclave group in comparison with the other test groups (p < 0.05). Conclusions The long-cycle autoclave polymerization technique with the glass fiber reinforcement significantly increased the flexural strength and elastic modulus of the denture base resin material.

Influence of Silver Nanoparticles Incorporation on Flexural Strength of Heat-cure Acrylic Denture Base Resin Materials

2017 ◽  
Vol 17 (4) ◽  
pp. 1-8 ◽  
Author(s):  
Rama Alla ◽  
K Swamy ◽  
Ritu Vyas ◽  
Anusha Konakanchi ◽  
Vineeth Guduri ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Flexural Strength ◽  
Denture Base ◽  
Heat Cure ◽  
Base Resin ◽  
Denture Base Resin

scholarly journals Impact of Surface Treatment with Different Repair Acrylic Resin on the Flexural Strength of Denture Base Resin: An In Vitro Study

2020 ◽  
Vol 21 (10) ◽  
pp. 1137-1140
Author(s):  
Amit Kumar ◽  
Bhumika Kamal Badiyani ◽  
Saikat Deb ◽  
Latha Muniswamy ◽  
Gunaranjan Thota ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Surface Treatment ◽  
In Vitro Study ◽  
Acrylic Resin ◽  
Vitro Study ◽  
Denture Base ◽  
Base Resin ◽  
Denture Base Resin

scholarly journals Effect of water storage on the flexural strength of heat-cured denture base resin reinforced with stick (s) glass fibers

2017 ◽  
Vol 8 (2) ◽  
pp. 264 ◽  
Author(s):  
SuryakantC Deogade ◽  
Ankit Galav ◽  
Sneha Mantri ◽  
K Sumathi ◽  
Sneha Galav
Keyword(s):  
Flexural Strength ◽  
Glass Fibers ◽  
Water Storage ◽  
Denture Base ◽  
Effect Of Water ◽  
Base Resin ◽  
Denture Base Resin
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