Effect of glass fibre reinforcement on residual methyl methacrylate content of denture base polymers

Bayraktar, Gülsen; Duran, Özlem; Güvener, Bora

doi:10.1016/s0300-5712(03)00026-5

Cited by 17 publications

(18 citation statements)

References 21 publications

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“…Some authors have suggested that to improve the physical properties of auto‐polymerised acrylic resins, they should be kept under pressure for at least 2.5 h during the polymerisation process, so that resin polymerisation would be completed in an oxygen reduced environment. It is suggested that resin exposure to oxygen during polymerisation might compromise this process 27 .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Vickers hardness of different types of acrylic denture base resins with and without glass fibre reinforcement

et al. 2010

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Objective: To evaluate the Vickers hardness of different acrylic resins for denture bases with and without the addition of glass fibres. Background: It has been suggested that different polymerisation methods, as well as the addition of glass fibre (FV) might improve the hardness of acrylic. Materials and methods: Five types of acrylic resin were tested: Vipi Wave (VW), microwave polymerisation; Vipi Flash (VF), auto-polymerisation; Lucitone (LT), QC20 (QC) and Vipi Cril (VC), conventional heat-polymerisation, all with or without glass fibre reinforcement (GFR) and distributed into 10 groups (n = 12). Specimens were then submitted to Vickers hardness testing with a 25-g load for 30 s. All data were submitted to ANOVA and Tukey's HSD test. Results: A significant statistical difference was observed with regard to the polymerisation method and the GFR (p < 0.05).

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Section: Discussionmentioning

confidence: 99%

Evaluation of Vickers hardness of different types of acrylic denture base resins with and without glass fibre reinforcement

et al. 2010

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“…Although there were several studies carried out to detect the residual monomer content of acrylic resins via HPLC technique,8, 17–20 very limited studies were carried on the effect of fiber reinforcement on the residual monomer content determined via HPLC method. Bayraktar et al,10 studied the residual monomer content of unreinforced and e‐glass fiber reinforced test specimens by HPLC technique. In the present study, not only glass fiber but also polyethylene fiber was used as reinforcing agent.…”

Section: Resultsmentioning

confidence: 99%

“…The residual monomer is a well‐known plasticizer and affects the physical and mechanical properties of acrylic resins 7, 8. Furthermore, the residual monomer units may diffuse from acrylic resin causing adverse effects, that is, redness, swelling, and pain on the oral mucosa 5, 9, 10. Infrared spectroscopy, gas chromatography, gas–liquid chromatography, and high performance liquid chromatography (HPLC) have been used to determine the content of residual monomer in polymeric matrices 4–9…”

Section: Introductionmentioning

confidence: 99%

Residual acrylic monomer content of denture base resins with different fiber systems

Köroğlu

Özdemir

Pamir

et al. 2011

J of Applied Polymer Sci

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The conversion of monomer to its polymer may not be complete and residual monomer is left over in the polymeric matrix; this, in turn, affects the properties of the polymeric matrix. In this study, we wanted to compare residual monomer content of the unreinforced conventional heat‐polymerized and microwave‐polymerized acrylic resins with those of fiber‐reinforced ones. High performance liquid chromatography was used for the determination of the residual monomer content. Statistical analysis of the results was carried out with a confidence level of 95%. It was observed that conventional heat‐polymerized denture base resin resulted in a relatively higher residual monomer content than the microwaved one. Conventional heat‐polymerized denture base resin with fiber reinforcement caused an increase in the residual monomer content. Furthermore, the change in the residual monomer content of microwave‐polymerized denture base resin with fiber reinforcement was not statistically significant compared with no fiber reinforcement. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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“…The flexural strength and flexural modulus of denture base can be increased by adding organic montmorillonite in the powder of denture base resin [6] . However, the reinforcement might also bring some increase in the amount of residual MMA monomer in the polymer which is the source of biological problems.…”

Section: Fig2 Andmentioning

confidence: 99%

“…Meanwhile the increase of residual MMA monomer content in the composite might deteriorate its mechanical properties. Bayraktur's study [6] showed that residual monomer content increased after glass fibers were introduced into the polymers as reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Residual monomer content and its release into water from the denture base nanocomposite using organic montmorillonite as reinforcement

Zhang

et al. 2008

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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A novel kind of denture base nanocomposite was prepared by polymethyl methyacrylate(PMMA) and cethyltrimethylammonium bromide modified organic montmorillonite (OMMT). The dispersion of montmorillonite in the polymer matrix was characterized by x-ray diffraction (XRD) and transimission electron microscope (TEM).The content of residual MMA in nanocomposites and the amount of MMA released to water from nanocomposites were determined by gas chromatography (GC). The analysis of TEM and XRD showed that exfoliated-intercalated and intercalated nanocomposites were formed when the content of OMMT was 3% and 5% in the PMMA powder respectively. The results of GC showed that the residual MMA increased with the increase of OMMT content in the polymer matrix. After 7 days in water, the amount of MMA released into water from the nanocomposites tended to be stable. The results of one-way ANOVA and t-test showed that OMMT gave a significant increase of residual MMA concentration (p<0.05) in nanocomposites.

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Effect of glass fibre reinforcement on residual methyl methacrylate content of denture base polymers

Cited by 17 publications

References 21 publications

Evaluation of Vickers hardness of different types of acrylic denture base resins with and without glass fibre reinforcement

Evaluation of Vickers hardness of different types of acrylic denture base resins with and without glass fibre reinforcement

Residual acrylic monomer content of denture base resins with different fiber systems

Residual monomer content and its release into water from the denture base nanocomposite using organic montmorillonite as reinforcement

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