Quantitative wear and wear damage analysis of composite resins in vitro

Koottathape, Natthavoot; Takahashi, Hidekazu; Iwasaki, Naohiko; Kanehira, Masafumi; Finger, Werner J.

doi:10.1016/j.jmbbm.2013.10.003

Cited by 35 publications

(26 citation statements)

References 26 publications

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“…When comparing the volume loss under water after 50 k cycles from a previous publication where lightcured composite resins (hybrid and nanofiller-type) were investigated 19) with the present data from the composite resin block materials the volume loss of the manufacturer-produced blocks is considerably lower. The higher wear resistance is supposedly related to the high-pressure and high-temperature polymerization during the manufacturing process 5) .…”

Section: Discussionmentioning

confidence: 57%

“…In conclusion, the present quantitative in vitro wear data and the qualitative comparative investigation of the worn surfaces' morphologies after 50,000 sliding cycles in two-and three-body wear mode have shown that overall the wear resistance of the four composite resin blocks, the hybrid ceramic and the traditional feldspar ceramic tested was enhanced when compared with the wear produced on current light-cured direct posterior composite resin using the same test protocol 19) . Considering that wear is no longer an important concern with modern composite resin materials, even when applied as amalgam substitutes in extended molar cavities 11,[23][24][25] , it is justified to suppose that the present material blocks investigated are suitable for production of CAD/CAM single premolar crowns.…”

Section: Discussionmentioning

confidence: 62%

“…The higher wear resistance is supposedly related to the high-pressure and high-temperature polymerization during the manufacturing process 5) . The volume losses of ENA and VIT worn under water were not similar to hybrid and nanofilled composite resins 19) . In contrast, it is interesting to note that volume losses after 50 k cycles of sliding wear with poppy seed as the intermediate medium were very similar for the light-cured composite resins investigated in a previous study 19) and the composite resin blocks.…”

Section: Discussionmentioning

confidence: 76%

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<i>In vitro</i> evaluation of the wear resistance of composite resin blocks for CAD/CAM

Lauvahutanon

Takahashi

Oki

et al. 2015

Dental Materials Journal

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The aim of the study was to investigate two-and three-body wear of CAD/CAM blocks. Four composite resins, one hybrid ceramic and one feldspar ceramic block material were examined. Six specimens each were tested in a ball-on-disc wear device fitted with a zirconia ball (50 N load, 1.2 Hz, 50 k cycles) in water for two-body and in poppy seed slurry for three-body wear evaluation. Volume loss after each 10 k cycle was quantified using a digital CCD microscope. Statistical analysis: ANOVA and Tukey's multiple comparisons (α=0.05). Two-body wear for composite resin blocks was small, hybrid ceramic and ceramic blocks showed larger volume loss. Threebody wear was very low for all materials. All CAD/CAM block materials investigated displayed low wear compared to previous data for direct posterior composites carrying out the same wear test. The block materials are considered suitable for fabrication of single full crown restorations on premolar teeth.

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Section: Discussionmentioning

confidence: 57%

Section: Discussionmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 76%

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<i>In vitro</i> evaluation of the wear resistance of composite resin blocks for CAD/CAM

Lauvahutanon

Takahashi

Oki

et al. 2015

Dental Materials Journal

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“…Another new matrix is composed of modified urethane (meth) acrylates TCD (Venus Diamond, Heraeus Kulzer) 2) . So far, little research has been conducted about the effect of the new resin matrix on wear resistance 35,36) . In the present study, P90 has a similar filler volume as FS, while VD has a similar filler volume as Z350; however, the wear loss of both composites including the new matrix monomer was not significantly different compared to conventional matrix composites with similar filler volume content.…”

Section: Discussionmentioning

confidence: 99%

Abrasive wear and surface roughness of contemporary dental composite resin

et al. 2014

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The purpose of this study was to evaluate the abrasive wear and surface roughness of 20 currently available commercial dental composite resins, including nanofilled, supra-nanofilled, nanohybrid and microhybrid composite resins. The volume loss, maximum vertical loss, surface roughness (R a ) and surface morphology [Scanning electron microscopy (SEM)] were determined after wear. The inorganic filler content was determined by thermogravimetric analysis. The result showed that the volume loss and vertical loss varied among the materials. The coefficients of determination (R 2 ) of wear volume loss and filler content (wt%) was 0.283. SEM micrographs revealed nanofilled composites displayed a relatively uniform wear surfaces with nanoclusters protrusion, while the performance of nanohybrid composites varied. The abrasive wear resistance of contemporary dental composite resins is materialdependent and cannot be deduced from its category, filler loading and composite matrix; The abrasive wear resistance of some flowable composites is comparable to the universal/posterior composite resins.

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“…Composite with smaller particle dimensions presents a smooth surface, and reinforcement particles are not detached from the matrix (Fig. 13a), [39]. In Fig.…”

Section: % and 30 % Filler Volume Fractionsmentioning

confidence: 97%

Mechanical and wear behaviours of nano and microfilled polymeric composite: Effect of filler fraction and size

2014

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights• Relation between the filler volume fraction/particle size & mechanical properties;• Relation between wear resistance and mechanical properties and the contact media;• Wear performance comparison of micro and nanofiller in: sliding and abrasive media. AbstractThe addition of ceramic reinforced material, SiC particles, to resin matrices, results in the improvement of the overall performance of the composite, allowing the application of these materials as tribomaterials in industries such as: automotive, aeronautical and medical. Particle-reinforced polymeric composites are widely used as biomaterials, for example as dental filler materials and bone cements.These reinforced composites have improved mechanical and tribological performance and have higher values of elastic modulus and hardness, and also reduce the shrinkage during the polymerization compared with resin matrices. However, the effect of the filler level in mechanical and tribological behaviour is not quite understood.The aim of this work is to determine the influence of the particle volume fraction and particle size in the wear loss of the composites and their antagonists. Reciprocating wear tests were conducted using a glass sphere against resin polyester silica reinforced composite in a controlled medium, with an abrasive slurry or distilled water. For 6 μ m average particle dimension, seven particles contents were studied ranging from 0 % to 46 % of filler volume fraction (FVF). Afterwards, filler volume fractions of 10 % and 30 % were selected; and, for these percentages, 7 and 4 average particle dimensions were tested and were evaluated regarding their wear behaviour, respectively. The reinforcement particle dimensions used ranged from 0.1 μ m to 22 μ m with the 10 % filler fraction, and for 30 % of filler content the range extended from 3 μ m to 22 μ m. The results allow us to conclude that in an abrasive slurry medium the composite abrasion resistance decreases with the increase of the particle volume fraction, in spite of the accompanying rise in hardness and elastic modulus. With constant FVF, and abrasive slurry, the composite wear resistance increases with increasing average particle dimension. In a distilled water medium and with several FVF values, the minimum wear was registered for a median particle content of 24 %. In this medium and with constant FVF the highest wear resistance occurred for average reinforcement particles of 6 μ m. The removal mechanisms involved in the wear process are discussed, taking into account the systematic SEM observations to evaluate the we...

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Quantitative wear and wear damage analysis of composite resins in vitro

Cited by 35 publications

References 26 publications

<i>In vitro</i> evaluation of the wear resistance of composite resin blocks for CAD/CAM

<i>In vitro</i> evaluation of the wear resistance of composite resin blocks for CAD/CAM

Abrasive wear and surface roughness of contemporary dental composite resin

Mechanical and wear behaviours of nano and microfilled polymeric composite: Effect of filler fraction and size

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