&lt;i&gt;In vitro&lt;/i&gt; evaluation of the wear resistance of composite resin blocks for CAD/CAM

Lauvahutanon, Sasipin; Takahashi, Hidekazu; Oki, Meiko; Arksornnukit, Mansuang; Kanehira, Masafumi; Finger, Werner J.

doi:10.4012/dmj.2014-293

Cited by 43 publications

(38 citation statements)

References 21 publications

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“…It is also interesting that the Ra values of the ENA and VIT samples were not significantly different between SiC grinding and 40k toothbrushing cycles evaluations. This greater wear resistance might be attributed to the strong ceramic network structure and greater hardness values of these materials 18) . These findings are consistent with a recent study that reported the surface hardness of ENA and VIT was relatively high when compared to the other materials tested 6) .…”

Section: Discussionmentioning

confidence: 99%

“…Some investigators measured the volume loss from surface wear 8,11,17,18) . In the present study, three parameters were chosen for evaluating the alteration of surface morphology after polishing and toothbrushing.…”

Section: Discussionmentioning

confidence: 99%

“…A study demonstrated that PMMA CAD/CAM blocks had a lower wear rate than conventionally polymerized acrylic resin when enamel was used as the antagonist 17) . Recently, the two-body and three-body wear characteristics, of composite resin CAD/CAM blocks were evaluated using water and poppy seeds in vitro and it was reported that all CAD/CAM block materials tested exhibited low wear compared to direct posterior composite resins 18) . The most commonly used parameters for the evaluation of surface characteristics are surface roughness, gloss, and scanning electron microscope (SEM) images 19) .…”

Section: Introductionmentioning

confidence: 99%

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Toothbrushing alters the surface roughness and gloss of composite resin CAD/CAM blocks

Kamonkhantikul

Arksornnukit

Lauvahutanon

et al. 2016

Dental Materials Journal

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This study investigated the surface roughness and gloss of composite resin CAD/CAM blocks after toothbrushing. Five composite resin blocks (Block HC, Cerasmart, Gradia Block, KZR-CAD Hybrid Resin Block, and Lava Ultimate), one hybrid ceramic (Vita Enamic), one feldspar ceramic (Vitablocs Mark II), one PMMA block (Telio CAD), and one conventional composite resin (Filtek Z350 XT) were evaluated. Surface roughness (Ra) and gloss were determined for each group of materials (n=6) after silicon carbide paper (P4000) grinding, 10k, 20k, and 40k toothbrushing cycles. One-way repeated measures ANOVA indicated significant differences in the Ra and gloss of each material except for the Ra of GRA. After 40k toothbrushing cycles, the Ra of BLO and TEL showed significant increases, while CER, KZR, ULT, and Z350 showed significant decreases. GRA, ENA, and VIT maintained their Ra. All of the materials tested, except CER, demonstrated significant decreases in gloss after 40k toothbrushing cycles.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Toothbrushing alters the surface roughness and gloss of composite resin CAD/CAM blocks

Kamonkhantikul

Arksornnukit

Lauvahutanon

et al. 2016

Dental Materials Journal

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“…The purpose of this study was to investigate the effect of material combinations of CAD/CAM machinable dental ceramics on the wear volume and the principal strain during simulated mastication. A ball-on-disk in vitro wear test was performed to simulate the grinding movement of a cusp tip against an opposing occlusal surface (13,14). Three kinds of blocks, feldspathic, lithium disilicate glass ceramics, and a highly loaded composite material, which are clinically used as monolithic materials, were employed for either the ball or disk specimen.…”

Section: Originalmentioning

confidence: 99%

“…The wear test used in this study was described previously (13,14). In brief, the disk container was mounted on a fixed table filled with water at room temperature (23°C).…”

Section: Wear Testmentioning

confidence: 99%

The ball-on-disk cyclic wear of CAD/CAM machinable dental composite and ceramic materials

et al. 2017

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The purpose of this study was to investigate the wear volume and the principal strain of machinable dental composite and ceramics in simulated mastication. A ball-on-disk wear test was performed for 3,000 cycles in water, using nine ball/disk combinations of three commercial CAD/ CAM materials: feldspathic, lithium disilicate glass ceramics, and a highly loaded composite material (n = 7 for each combination). The wear volume was optically measured using a digital scanner and analyzed for statistical differences based on the materials (α = 0.05). We used non-linear finite element analysis to calculate the principal strain. The wear volume of the ball was significantly larger than that of the disk when hardness and fracture toughness of the former was lower than that of the latter and vice versa (P < 0.05). The lithium disilicate glass ceramic constantly showed lower wear volume than the opposing antagonist. Except for the same material pairs of feldspathic and composite, the ball or disk specimen that showed a larger wear in the occluding pair coincided with the one with higher maximum strain. It was not possible to predict the magnitude of wear, whereas the result suggested a strong association between the maximum strain and wear volume of the ceramic surface.

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Investigation of three‐body wear behavior and hardness of experimental titanium alloys for dental applications in oral environment

Yilmaz

2020

Materialwissenschaft Werkst

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The aim of this study was to investigate the three‐body wear resistance and hardness of commercially pure titanium and titanium alloys containing zirconium and tantalum (cp‐Ti, Ti‐5Zr and Ti‐5Ta). Each titanium test group, were subjected to wear tests under 105 wear cycles, 50 N mechanical force, 2.0 Hz wear frequency, 6 mm diameter Al2O3 antagonist ball, 5 °C/55 °C thermal change conditions immersed in poppy seed slurry as third‐body medium. The mean wear volume loss and depth of all test specimens after the three‐body wear tests was determined with use non‐contact 3D profilometer and also Vicker's hardness was measured. Wear area of microstructures were evaluated using scanning electron microscopy (SEM) and x‐ray diffraction (XRD) analysis. The hardness of Ti‐5Zr material was significantly greater than the other alloy material and cp‐Ti. However, for the test materials in this study considered, correlations between the three‐body wear resistance and hardness were found to be insignificant. It was concluded, the three‐body wear resistance of the alloy formed with the adding of zirconium and tantalum to the pure titanium is increased after wear tests.

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

Cited by 43 publications

References 21 publications

Toothbrushing alters the surface roughness and gloss of composite resin CAD/CAM blocks

Toothbrushing alters the surface roughness and gloss of composite resin CAD/CAM blocks

The ball-on-disk cyclic wear of CAD/CAM machinable dental composite and ceramic materials

Investigation of three‐body wear behavior and hardness of experimental titanium alloys for dental applications in oral environment

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