Porcelain
Mostrando 13-24 de 151 artigos, teses e dissertações.
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13. New records of intersexuality in porcelain crabs (Crustacea: Decapoda: Anomura: Porcellanidae)
Abstract The occurrence of intersex specimens of Lissoporcellana quadrilobata (Miers, 1884), Pisidia bluteli (Risso, 1816) and Pisidia longimana (Risso, 1816) is recorded for the first time and their secondary sexual characters analyzed. Intersex specimens were collected in regions regularly affected by pollution. There is a high possibility that intersexual
Nauplius. Publicado em: 26/03/2018
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14. Chaetotaxy and setal diversity of grooming legs in species of porcelain crabs (Crustacea: Anomura: Porcellanidae)
Abstract The morphology of the fifth pereiopods was studied under scanning electron microscopy in ten species of porcelain crabs for chaetotaxy and setal diversity, namelly Megalobrachium pacificum, Megalobrachium roseum, Pachycheles grossimanus, Petrolisthes armatus, Petrolisthes tuberculatus, Pisidia brasiliensis, Pisidia longicornis, Polyonyx gibbesi, Por
Pap. Avulsos Zool.. Publicado em: 19/03/2018
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15. Comparison of Methods for Determining the Water Absorption of Glazed Porcelain Stoneware Ceramic Tiles
This work evaluated the water absorption of glazed porcelain stoneware ceramic tiles using three different methods. Two methods were based on a procedure of boiling in water, specified by standards ISO 10545 and ASTM C373, and the third was the vacuum method proposed by the standard ISO 10545. The three products produced under the three different firing cond
Mat. Res.. Publicado em: 17/11/2017
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16. Effects of porcelain thickness on the flexural strength and crack propagation in a bilayered zirconia system
Abstract Objective: This study evaluated the influence of porcelain (VM9, VITA Zahnfabrik, Germany) thickness on the flexural strength and crack propagation in bilayered zirconia systems (YZ, VITA Zahnfabrik, Germany). Material and Methods: Thirty zirconia bars (20.0x4.0x1.0 mm) and six zirconia blocks (12.0x7.5x1.2 mm) were prepared and veneered with porc
J. Appl. Oral Sci.. Publicado em: 2017-10
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17. Incorporation of Lead Containing TV Tube Glass Waste in Aluminous Porcelain
The aim of this work was to study the incorporation of lead containing TV tube glass waste as a method to provide alternative raw material for aluminous electrical porcelain. For this purpose, aluminous porcelain formulations containing up to 30 wt.% of TV tube glass waste as a replacement for traditional flux material (sodium feldspar) were pressed and fire
Mat. Res.. Publicado em: 21/09/2017
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18. Effect of the Cooling Rate on the Properties of Veneer Porcelain for Zirconia Dental Prosthesis
To solve chipping of veneer porcelain in zirconia dental prosthesis it has been studied different cooling rates in firing schedules to control residual stresses generated by differences in thermal properties between the ceramics. However, cooling rates may affect the porcelain, irrespectively of interaction with zirconia. This study analyzed the effect of co
Mat. Res.. Publicado em: 07/08/2017
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19. A Straightforward Method for Determination of Al and Na in Aluminosilicates Using ICP OES
The improvements on aluminosilicates dissolution through microwave-assisted acid decomposition procedures for Na and Al quantification by inductively coupled plasma optical emission spectrometry (ICP OES) are reported here. Complete dissolution of the samples is achieved employing 4 mL of HNO3 and 3-4 mL of HF thus reducing the total amount of these reactant
J. Braz. Chem. Soc.. Publicado em: 2017-08
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20. First record of Petrolisthes virgatus Paul'son, 1875 (Crustacea, Decapoda, Anomura, Porcellanidae) from the Persian Gulf and Gulf of Oman, Iran
Abstract Recent marine expeditions to the Abu-Musa Island (in the Persian Gulf) and Gulf of Oman yielded a first record of the porcelain crab Petrolisthes virgatus Paul'son, 1875, that had not been recorded from these water bodies. In both localities, specimens have been collected from rock crevices in the rocky-cobble shores of the low intertidal zone. Reco
Nauplius. Publicado em: 08/12/2016
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21. Use of Feldspathic Porcelain Veneers to Improve Smile Harmony: A 3-Year Follow-up Report
Resumo Este relato de caso descreve um tratamento estético para melhorar a forma e alinhamento dos dentes anteriores, restabelecendo a harmonia do sorriso por meio de laminados de porcelana feldspática. Resultados de acompanhamento clínico longitudinal de 36 meses também são apresentados. As vantagens, desvantagens e limitações da técnica são detalh
Braz. Dent. J.. Publicado em: 2016-12
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22. Low-Fusing Porcelain Glaze Application on 3Y-TZP Surfaces can Enhance Zirconia-Porcelain Adhesion
Resumo O objetivo do estudo foi avaliar o efeito de tratamentos de superfície para melhora a união entre zircônia-porcelana. Os materiais testados foram 3Y-TZP e VM9. Os blocos de 3Y-TZP foram cortados em quadrados, polidos e sinterizados. Os tratamentos de superfície foram: Rocatec soft e aplicação de silano (TBS), vitrificação e ácido fluorídrico
Braz. Dent. J.. Publicado em: 2016-10
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23. Effect of Glaze Cooling Rate on Mechanical Properties of Conventional and Pressed Porcelain on Zirconia
Resumo Este estudo teve como objetivo caracterizar uma porcelana convencional e uma prensada indicadas para infraestrutura de zircônia em termos de resistência à flexão biaxial (RFB), tenacidade à fratura aparente (TF) e composição microestrutural, e investigar o efeito da taxa de resfriamento do ciclo de glaze na RFB de espécimes bicamada de zircôn
Braz. Dent. J.. Publicado em: 2016-10
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24. Sobrevida de prótese parcial fixa posterior em zircônia: revisão sistemática de estudos clínicos com até 7 anos de acompanhamento
Resumo A cerâmica odontológica tem sofrido modificações na composição visando melhorar sua resistência em resistir às forças mastigatórias fisiológicas na região posterior da boca. O objetivo deste trabalho foi avaliar o comportamento clínico de próteses parciais fixas posteriores (PPFs) em zircônia a partir de estudos clínicos prospectivos d
Cerâmica. Publicado em: 2016-03