In vitro wear resistance, hardness and elastic modulus of artificial denture teet

Suwannaroop, Pii; Chaijareenont, Pisaisit; Koottathape, Natthavoot; Takahashi, Hidekazu; Arksornnukit, Mansuang

doi:10.4012/dmj.2010-200

Cited by 73 publications

(81 citation statements)

References 36 publications

(53 reference statements)

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“…In another study, 6 the correlation between wear resistance, hardness and elastic modulus in the layer that corresponds to the dentin was analyzed. Tests were performed in seven artificial teeth brands, among them SR Orthosit PE.…”

Section: Discussionmentioning

confidence: 99%

“…Literature states that this product contains interpenetrated polymer networks (IPN), which are materials made of two polymers, each one in a different network shape, one network being inside the other. [6][7][8][9] Another manufacturer (Sustained Life Material -Dentsply, PA) despite not self-qualifying as IPN, declares that there would be an improvement in this product (Trublend SLM) caused by the incorporation of cross-links in the polymer networks with polyethylene particles of high molecular weight, which would also enhance the lubricant effect. 8,10 Composite resin teeth with silica particles were found in SR-Ortosit PE (Ivoclar, Schaan, Liechtenstein), detected by the analysis with EDX.…”

Section: Introductionmentioning

confidence: 99%

“…6 One of the reasons that might determine these adjustments is the polymerization process and the resin base contraction, which can displace the artificial teeth and change the occlusal contacts. 13 In addition, after a period of adaptation, the denture is accommodated in the mucosa and the tooth arrangement need to be adjusted.…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5][6][7][8] The latter being the case of Trubyte Bioform IPN (Dentsply International/ Pennsylvania, USA). Literature states that this product contains interpenetrated polymer networks (IPN), which are materials made of two polymers, each one in a different network shape, one network being inside the other.…”

Section: Introductionmentioning

confidence: 99%

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Transverse microhardness of artificial teeth

et al. 2015

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| Objective:Hardness is an indicator of several mechanical properties of artificial teeth, also related to wear resistance.The purpose of this article is to map the microhardness of artificial teeth as a function of depth and commercial brand. Methods: Knoop microhardness of sectioned artificial second molars was measured every 200 µm starting at a depth of 100 µm up until 4700 µm of the following brands: Premium (Pr), Orthosit (Or), SR Postaris DCL (Po), Biotone (Bi), Artiplus IPN (Ar), VITA MFT (Vi), Natusdent (Na), Trilux (Tr), and Biolux (Bx). Results were analyzed with ANOVA for repeated measures and Tukey test (5%). Results: SR Orthosit PE commercial brand presented higher hardness values (until the depth of 3.1 mm was 30 N/mm 2 ), significantly higher than the other brands analyzed. Conclusion: Knoop hardness did not present differences between layers for eight of the nine brands studied. Different hardness values were found between superficial and cervical areas for the brand SR Orthosit PE.DESCRIPTORS | Artificial Tooth; Hardness; Acrylic Resins. RESUMO | Microdureza de dentes artificiais em suas diferentes camadas • Objetivo:A dureza é tida como indicador de várias propriedades mecânicas de dentes artificiais, e relacionada a resistência ao desgaste. O objetivo foi mapear a microdureza de dentes artificiais de 9 marcas em função da profundidade. Métodos: foi medida a microdureza Knoop de segundos molares cortados num plano sagital em intervalos de 200 µm a partir da profundidade de 100 µm até 4700 µm, das marcas: Premium (Pr), Orthosit (Or), SR Postaris DCL (Po), Biotone (Bi), Artiplus IPN (Ar), VITA MFT (Vi), Natusdent (Na), Trilux (Tr) and Biolux (Bx). A ANOVA de medidas repetidas e o teste de Tukey (5%) analisaram os resultados. Resultados: A marca SR Orthosit PE apresentou a maior dureza (até a profundidade de 3,1 mm foi da ordem de 30 N/mm 2 ), significativamente maior que todas as outras medidas realizadas (da ordem de 20 N/mm 2 ). Conclusão: A dureza Knoop não evidenciou diferenças entre camadas para oito das nove marcas estudadas. Foi constatada diferente dureza entre a superfície e a região cervical para a marca SR Orthosit PE. DESCRITORES |

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transverse microhardness of artificial teeth

et al. 2015

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“…These teeth are widely used due to their ease of handling, possibility of characterization, glossy surface after polishing, adequate color stability, easy fit, and good esthetic outcome [7][8][9][10] . However, major concerns exist regarding their wear resistance and ability to maintain a stable occlusal relationship over time [11][12][13] .…”

Section: Introductionmentioning

confidence: 99%

Artificial teeth: evaluation of wear resistance, microhardness and composition

Grando

Pacheco

Botega

et al. 2015

RGO, Rev. Gaúch. Odontol.

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ObjectiveTo evaluate the Knoop hardness, composition, and wear resistance of acrylic-resin artificial teeth exposed to mechanical toothbrushing. Methods Artificial under a 200-g load and at a frequency of 250 cycles per minute, using a soft-bristled toothbrush (IndicatorPlus 30, Oral-B) soaked in a 1:1 toothpaste/water slurry (Oral B Pró Saúde). Microhardness testing was performed using a 25-g load for 15 seconds in an HMV-2 hardness tester (Shimadzu). The composition of teeth from different brands was determined by scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDS) (Jeol JSM 5800). Results Wear results after mechanical brushing were compared by means of the paired t-test, whereas those obtained in microhardness testing were compared by ANOVA with Bonferroni correction. There was no statistically significant difference between brands in either trial. ConclusionComposition analysis revealed that all of the artificial teeth analyzed contain carbon and oxygen. Trilux and Soluut PX brand teeth also contain silicon; however, the presence of filler particles did not result in increased resistance.

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Compressibility of woven textiles on the architecture of a highly ordered cylindrical, orthogonal, hollow‐channeled scaffolds

Santos-Esteve

Berna

2016

J of Applied Polymer Sci

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Scaffolds that mimic the architecture of native tissues are highly desirable for tissue engineering. Because some human tissues, such as nerves and teeth, have an oriented microscale structure, the control of the scaffold design parameters is important. In this study, we fabricated micro‐oriented structures with different interpenetrating networks by combining thermal compression, sintering, solvent casting, and particulate leaching techniques. The influence of the processing parameters, such as the compaction pressure, number of stacked fabric layers, and compression time on the structure, pore morphology, porosity, and thickness was studied. Increases in the compacting pressure resulted in changes in the pores morphology; when the pores changed from circular to elliptical cylindrical channels, the porosity reached its maximum. A further increase in the pressure resulted in a slight decrease in the porosity because of the collapse of the elliptical cylindrical channels and the shift in the pore channels from orthogonal assembly to lamellar structure. On the other hand, the scaffold thickness could be controlled by the adjustment of the compaction pressure and/or the number of stacked fabric layers. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44616.

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In vitro wear resistance, hardness and elastic modulus of artificial denture teet

Cited by 73 publications

References 36 publications

Transverse microhardness of artificial teeth

Transverse microhardness of artificial teeth

Artificial teeth: evaluation of wear resistance, microhardness and composition

Compressibility of woven textiles on the architecture of a highly ordered cylindrical, orthogonal, hollow‐channeled scaffolds

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