Optimization of Fracture Resistance and Stiffness of Heat‐Polymerized High Impact Acrylic Resin with Localized E‐Glass FiBER FORCE® Reinforcement at Different Stress Points

Agha, H Haj Mir; Flinton, Robert; Vaidyanathan, T.K.

doi:10.1111/jopr.12477

Cited by 29 publications

(32 citation statements)

References 35 publications

(54 reference statements)

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“…Therefore, the higher the number of fiber layers added in the tensile stress zone, the more the fracture strength of the IOD. This is in line with the findings by Dyer et al (37) and Agha et al (38) regarding the quantity of fibers added to the tensile stress zone of prostheses. However, it disagrees with the finding by Kanie et al (23), who found that the increase in the number of fiber layers does not increase the fracture strength.…”

Section: Discussionsupporting

confidence: 82%

Fracture Strength of Acrylic Resin Reinforced with Glass Fibers in Simulated Implant-Supported Overdenture Abutments

Moftah¹,

Turkmani

Darwich

2017

YJMS

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Objective: To evaluate the effect of glass fibers on acrylic resin fracture strength in simulated implant-supported overdenture (IOD) abutments. Methods:A model was designed to simulate the clinical situation of an IDO (50×12×1.5 mm). Thirty models were divided into three equal groups: ten models not supported with glass fibers (control group), ten models with one layer of glass fibers (experimental group I) and ten models with two layers of glass fiber (experimental group II). All models were exposed to a three-point bending test, and fracture loads were analyzed using a one-way analysis of variance (ANOVA) followed by Bonferroni post-hoc test.Results: IOD models reinforced with two layers of glass fibers (experimental group II) showed a mean ultimate load at fracture of 48.69 ± 3.71 Newton (N) compared to mean loads of 32.78 ± 2.41 N and 24.42 ± 2.73 N for the models reinforced with one layer (experimental group I) and non-reinforced with glass fibers (control group), respectively. ANO-VA showed a statistically significant difference between the three groups regarding the mean ultimate load at fracture, and Bonferroni post-hoc test showed statistically significant differences between both experimental groups and the control group as well as between experimental group I and experimental group II. Conclusions:The fracture strength of IDO abutments increases significantly by the addition of acrylic resin preimpregnated with glass fibers, even when the thickness of acrylic is thin.

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Section: Discussionsupporting

confidence: 82%

Fracture Strength of Acrylic Resin Reinforced with Glass Fibers in Simulated Implant-Supported Overdenture Abutments

Moftah¹,

Turkmani

Darwich

2017

YJMS

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“…To evaluate these treatments, a three-point bending test was performed. This test is the most used to evaluate acrylic resin resistance [1][2][3]7,[10][11][12]14,21,22] failure caused by deformation of the base of the complete prosthesis [3,12,14], being preferable to torsion, compression or shear tests [7]. Trying to simulate the conditions of a complete prosthesis, the thickness of the experimental bars was 2.5 mm, which is the dimension also used in others researches [7,[11][12] and it is close to the one clinically used in a prosthesis base.…”

Section: Discussionmentioning

confidence: 99%

“…Its use is justified not only for the simplicity of the technique, but also good resistance, durability, biocompatibility, cost-benefit ratio, dimensional and chemical stability. However, it still does not fulfill all the necessary requirements of a rehabilitation material [1][2][3][4][5]. Complete dentures execution with TAAR are done at the cost of clinical and laboratory procedures [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…However, in cases of implant installation to retain and/or give support for complete dentures [6], TAAR present precarious mechanical properties and can frequently fracture [1][2][3]5,[7][8][9][10]. This can occur as a result of occlusal disharmony, overloading, fatigue and impact caused by accidents [11][12].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the contraindication for the patient is the reduced longevity of such prosthesis. Therefore, for mucus or implant supported complete dentures, there is the need for TAAR reinforcement, which could result in better mechanical performance, mainly in terms of fracture resistance, allowing greater longevity for these rehabilitations [1,4,[8][9]12].…”

Section: Introductionmentioning

confidence: 99%

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Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures

Miranda

Marinho

Macedo

et al. 2018

BDS

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Objetive: This research aimed to verify the performance of thermally activated acrylic resin (TAAR) combined with a mix of glass and aramid fibers and/or composite resin of indirect use by a tree point bending test. Material and Methods: Ten samples, with 65 x 10 x 2.5 mm, were prepared for each group (n = 10): CO, control of only TAAR; CR, in which an 60 mm indirect composite resin was polymerized together with the acrylic resin during the thermo-polymerization cycle; SS, in which ceramic glass mixed with aramid fibers cut 60 mm in length were incorporated into the samples; and SC, in which the same fibers were incorporated with addiction of the indirect composite resin. A three-point flexural strength test was performed with a universal testing machine with a load of 50KgF at a speed of 5 mm/min in the center of the samples supported by a suitable device. The reinforced face was placed to the tensile side. The statistical one-way ANOVA and Tukey tests were made with a significance level of 95%. Results: The mean value for the CO was 60,27 ± 24,18 MPa, for CR it was 38,39±12,75 MPa, for SS it was 79,97±12,75 Mpa and for CS it was 32,40±9,05 MPa. Conclusion: The use of glass and aramid fibers at the base of a TAAR increased the three-point flexural strength, however when indirect composite resin was incorporated, a significant drop of this mechanical property was observed. KeywordsAcrylic resin; Complete denture; Composite resin.

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Mechanical performance of denture acrylic resin modified with poly(4‐styrenesulfonic acid‐co‐maleic anhydride) sodium salt and strontium titanate

Elhmali,

Stajcic,

Petrovic

et al. 2024

Polymer Composites

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Since acrylate‐based materials are widely used in dentistry, their drawbacks such as low impact resistance and hardness, require continuous research in the field of materials science in order to avoid sudden fracture caused by chewing or fall. In this study, auto‐polymerizing poly(methyl methacrylate) (PMMA), commonly used as denture base material, was reinforced with poly(4‐styrenesulfonic acid‐co‐maleic anhydride) sodium salt (PSSMA) and strontium titanate (STO), with the aim of improving impact behavior and microhardness. Morphological analysis confirmed formation of phase‐separated and co‐continuous microscopic structures of PSSMA in PMMA, without visible agglomerates of STO nanoparticles, indicating that PSSMA‐STO interaction contributed to a better distribution of nanoparticles. Fourier transformed infrared spectroscopy revealed that PSSMA and STO did not interfere in the polymerization of methyl methacrylate. This was further supported by thermal analysis, which also showed that the addition of PSSMA and STO had no significant influence on thermal degradation. On the other side, PSSMA and STO significantly enhanced mechanical performance of PMMA. The modulus of elasticity increased by up to 48.6%, total absorbed impact energy improved by up to 108.4%, and microhardness increased by up to 272.8% when PSSMA was combined with STO for reinforcing denture PMMA. These results demonstrate the significant potential of PSSMA, which could be combined with other ceramic nanoparticles for denture reinforcement in the future.Highlights This research presents novel dental hybrid composite. Influence of strontium titanate (STO) and poly(4‐styrenesulfonic acid‐co‐maleic anhydride) sodium salt (PSSMA) on poly(methyl methacrylate) (PMMA) was investigated. PSSMA/STO improved modulus of elasticity, microhardness and impact resistance. Sample with 5 wt% PSSMA and 1 wt% STO showed the highest improvement compared to PMMA. Presented hybrid composite could use as denture base material.

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Optimization of Fracture Resistance and Stiffness of Heat‐Polymerized High Impact Acrylic Resin with Localized E‐Glass FiBER FORCE® Reinforcement at Different Stress Points

Cited by 29 publications

References 35 publications

Fracture Strength of Acrylic Resin Reinforced with Glass Fibers in Simulated Implant-Supported Overdenture Abutments

Fracture Strength of Acrylic Resin Reinforced with Glass Fibers in Simulated Implant-Supported Overdenture Abutments

Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures

Mechanical performance of denture acrylic resin modified with poly(4‐styrenesulfonic acid‐co‐maleic anhydride) sodium salt and strontium titanate

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