Instrumented Penetration
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Experimental-numerical Technique to Evaluate the Thickness of TiN Thin Film
In this study, the numerical analysis of instrumented indentation testing was combined with the experimental procedure to evaluate the mechanical properties and thickness of a titanium nitride (TiN) film deposited on titanium substrate (Ti) by plasma processing. TiN film thickness is an important parameter for the surface treatment industry. In numerical ana
Mat. Res.. Publicado em: 09/09/2019
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2. Penetration of bioceramic and epoxy-resin endodontic cements into lateral canals
Abstract: The aim of the present study was to assess the penetration capacity of two endodontic cements, Endosequence BC Sealer and AH Plus, in artificial lateral canals. Twenty-six two-rooted, maxillary first premolars were instrumented to size 40.06 using K3 files. In each root, six lateral canals of two diameters (0.06 and 0.10 mm) were created with a wor
Braz. oral res.. Publicado em: 27/05/2019
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3. Effectiveness of different final irrigation techniques and placement of endodontic sealer into dentinal tubules
Abstract: The aim of this study was to compare two irrigation techniques and four devices for endodontic sealer placement into the dentinal tubules. Ninety-nine single-rooted human teeth were instrumented and allocated to either the control (CO) (n=11) or experimental groups according to the irrigation method: syringe and NaveTip needle (NT) (n=44), and Endo
Braz. oral res.. Publicado em: 18/12/2017
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4. Resin-based sealer penetration into dentinal tubules after the use of 2% chlorhexidine gel and 17% EDTA: in vitro study
Aim: To evaluate, by confocal laser scanning microscopy (CLSM), the influence of 17% EDTA final irrigation on the penetration of an endodontic resin-based sealer into dentinal tubules after use of 2% chlorhexidine gel. Methods: Forty extracted bovine incisors were instrumented according to the groups: G1 - root canal preparation with 2% chlorhexidine gel (n=
Braz. J. Oral Sci.. Publicado em: 2014-12
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5. Lack of correlation between tubular dentine cement penetration, adhesiveness and leakage in roots filled with gutta percha and an endodontic cement based on epoxy amine resin
Objective: To analyze possible correlations among tubular dentine cement penetration, adhesiveness and apical leakage in fillings performed with gutta percha and an endodontic cement based on epoxy amine resin. Material and Methods: Sixty similar, extracted human mandibular central incisors were irrigated, instrumented and filled following the same pr
J. Appl. Oral Sci.. Publicado em: 2014-01
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6. ESTUDO DAS PROPRIEDADES MECÂNICAS DE INTERFACE APLICADAS EM REVESTIMENTOS ESPESSOS OBTIDOS POR ASPERSÃO TÉRMICA. / STUDY OF MECHANICAL PROPERTIES OF INTERFACE IN APPLIED Coated OBTAINED BY THERMAL SPRAY.
O presente trabalho configura-se como uma tentativa experimental de verificação da validade do modelo teórico utilizado para relação de interface proposto por Chicot e Lesage. Para isso, é apresentado um estudo sobre as propriedades mecânicas de interface a partir de ensaios de penetração instrumentada. Um dos pontos relevantes do estudo está relac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2011
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7. Análise qualiquantitativa da permeabilidade dentinária do terço apical de diferentes grupos dentais / Qualiquantitative analysis of apical dentin permeability in different dental groups
This ex vivo study evaluated histochemically the dentin permeability of the root canal walls in the apical third of different human dental groups, analyzing the pattern of dentinal tubule distribution and the presence of sclerotic dentin in this region. Eighty teeth were used, being 8 of each dental group - maxillary and mandibular central incisors, lateral
Publicado em: 2010
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8. Effects of Ag addition on some physical properties of granular YBa2Cu3O7-δ superconductor
The effects of Ag addition on some physical properties of YBa2Cu3O7-δ superconductor has been studied. The samples were produced by different routes and characterized by scanning electron microscopy, differential thermal analysis, thermogravimetric analysis, X-ray diffraction and nanoindentation. The superconducting properties were studied by dc magnetizati
Brazilian Journal of Physics. Publicado em: 2009-12
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9. Mechanical properties of Ag-doped top-seeded melt-grown YBCO pellets
In the present work we report the mechanical properties of ca(b)-planes of Ag-doped top-seeded melt-grown YBaCuO (YBCO) pellets at different concentrations. Hardness and elastic modulus were obtained by instrumented indentation and fracture toughness by conventional Vickers indentation. Hardness profiles for both planes indicated values between 7-8 GPa at de
Brazilian Journal of Physics. Publicado em: 2008-09
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10. Coronal and apical leakage analysis of two different root canal obturation systems
This study compared the coronal and apical leakage of AH Plus with gutta-percha to that of Epiphany with Resilon. Twenty-four single rooted teeth were instrumented and divided into 2 groups according to the solutions for smear layer removal and the obturation materials employed: Group A - 17% EDTA-T and AH Plus with gutta-percha; Group B - primer and Epiphan
Brazilian Oral Research. Publicado em: 2008-09
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11. Avaliação da eficiência da técnica de obturação pela compressão hidrùlica vertical após instrumentação automatizada
The purpose of this study was to evaluate through radiographic and microscopic analysis the efficiency of the filling techniques by vertical hidraulic compression after the root canal mechanical instrumentation in vitro as well to evaluate the marginal apical leakage through macroscopic and microscopic analysis. Thirty human mandibular molars were used , the
Publicado em: 1999