Reinforcement of poly(methyl methacrylate) denture base with glass flake

Franklin, Paul; Wood, David; Bubb, N. L.

doi:10.1016/j.dental.2004.07.002

Cited by 86 publications

(68 citation statements)

References 15 publications

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“…Hence, addition of glass flakes to improve physical properties[10] is contradicted by this study and adds to the drawback of using this material in dentistry.…”

Section: Resultsmentioning

confidence: 90%

“…The mixture was also found to be tackier to the touch with a higher concentration of glass flakes. [10]…”

Section: Discussionmentioning

confidence: 99%

“…[10] conducted a study to evaluate the effect of a new material - glass flake reinforcement on PMMA denture base resin. Results showed that the addition of glass flake gave up to a 69% increase in fracture toughness compared to plain Trevalon material.…”

Section: Introductionmentioning

confidence: 99%

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Flexural properties and impact strength of denture base resins reinforced with micronized glass flakes

Choksi

Mody

2016

J Indian Prosthodont Soc

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Objectives:To investigate the effect of the addition of glass flakes on physical properties of conventional heat cure denture base resins and to compare it with a high impact strength denture base resin.Materials and Methods:Test specimens were divided into Group 1 - poly (methyl methacrylate) (PMMA) (Trevalon), Group 2 - Trevalon HI, Group 3 -5% glass flake +95% PMMA (Trevalon), Group 4 -10% glass flake +90% PMMA (Trevalon), and Group 5 -20% glass flake +80% PMMA (Trevalon). For glass flake modified groups, part of PMMA (powder) was substituted with the same weight of glass flake (GF003 m) as required, to bring it to 100% powder. Flexural strength was tested using three-point bending test and impact strength with Izod type impact tester.Results:Plain PMMA (Trevalon), showed the highest value of flexural strength followed by Trevalon HI. Trevalon HI (highly cross-linked PMMA) group showed the highest value of impact strength.Conclusion:Flexural strength of unmodified PMMA denture base resin decreases with increase in the concentration of glass flakes. Impact strength does not show any significant change at 5% concentration of glass flakes and impact strength significantly reduces with the addition of glass flakes in 10% and 20%.

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“…Hence, addition of glass flakes to improve physical properties[10] is contradicted by this study and adds to the drawback of using this material in dentistry.…”

Section: Resultsmentioning

confidence: 90%

“…The mixture was also found to be tackier to the touch with a higher concentration of glass flakes. [10]…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Flexural properties and impact strength of denture base resins reinforced with micronized glass flakes

Choksi

Mody

2016

J Indian Prosthodont Soc

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“…It has been shown, that rubber toughening, consisting of controlled distribution of rubbery inclusions increasing the extent of the material undergoing plastic deformation prior to fracture, has many limitations [23], namely reduced stiffness, enhanced creep and water sorption as well as increased adhesion of microbial plaque. Several attempts have been made to use the second approach by adding short glass, carbon and Kevlar fibers, however, the desired balance of mechanical properties, esthetics and biomechanics has not been achieved so far [15,20]. It has been shown [25] that the combination of the two strategies can lead to enhanced fracture resistance without compromising elastic modulus and creep.…”

Section: Introductionmentioning

confidence: 94%

“…The stiffness of the commercial denture base materials seems satisfactory, however, the inherently low fracture toughness of PMMA is one of the major shortcomings of the PMMA based denture base resins [3][4][5]. Various routes have been utilized to enhance fracture toughness of both PMMA and x-linked PMMA [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. In general, there are two basic strategies to enhance crack resistance in polymers.…”

Section: Introductionmentioning

confidence: 99%

Toughening of denture base resin with short deformable fibers

Jančář

Hynstova

Pavelka

2009

Composites Science and Technology

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Using organic montormollontrite to reinforce the structure and flexural property of denture base nanocomposites

Liu

Xiao

2009

J of Applied Polymer Sci

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ABSTRACT:The denture bases nanocomposites were prepared by adding organic montormollontrite(OMMT) into poly(methyl methacrylate) matrix. The resulting composites were characterized by XRD, TEM, and ISTRON 3365 flexural strength testing systems. One-way analysis of variance and Tukey's test were used to compare the difference in flexural strength and flexural modulus. The results showed the formation of exfoliated-intercalated and intercalated denture base nanocmposite when the content of OMMT was 3 wt % and 5 wt % in the powder of denture base resin, respectively. The maximum ultimate flexural strength was observed in denture base nanocomposite containing 3 wt % of OMMT and flexural strength decreased with further increases of OMMT content. The flexural modulus of denture base nanocomposite increased continually with OMMT content increasing from 1 wt % to 10 wt %. Significant difference in both flexural strength and flexural modulus was observed between the nanocomposites with 3 wt % OMMT and controls (n ¼ 5, P < 0.05).

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Reinforcement of poly(methyl methacrylate) denture base with glass flake

Cited by 86 publications

References 15 publications

Flexural properties and impact strength of denture base resins reinforced with micronized glass flakes

Flexural properties and impact strength of denture base resins reinforced with micronized glass flakes

Toughening of denture base resin with short deformable fibers

Using organic montormollontrite to reinforce the structure and flexural property of denture base nanocomposites

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