Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/1481 |
Resumo: | Objective: The aim of this study was to evaluate a Y-TZP ceramic sintered by a microwave protocol on volume shrinkage and surface roughness. Material and Methods: Twenty four (N=24) Y-TZP discs were fabricated by milling in CAD/CAM for size standardization. The mean final dimensions of the specimens were 15 mm X 1.6 mm. Samples were divided into 2 groups (n=12): conventional resistive heating sintering protocol (C - Control) and microwave sintering protocol (MO - experimental). For the characterization of the specimens, surface roughness (Ra and Rz parameters) was evaluated with a roughness tester, and volume shrinkage was measured with a hand micrometer. Data were statistically evaluated by Student’s t and Mann-Whitney U tests (?=0.05). Results: The roughness results were: 0.25 ?m ± 0.02 (Ra) and 2.68 ?m ± 0.666 (Rz) for the MO samples; 0.26 ?m ± 0.04 (Ra) and 2.73 ?m ± 0.461 (Rz) for the C group (Ra: p = 0.19; Rz: p = 0.81). The shrinkage results was: MO (21.02% ± 2.70) and C (20.10% ± 0.52) (p = 0.274). Conclusion: The conventional and microwave sintering methods were similar regarding surface roughness and volume shrinkage of Y-TZP dental ceramic.KeywordsBioceramics; Microwave sintering; Roughness surface; Zirconia. |
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oai:ojs.pkp.sfu.ca:article/1481 |
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Brazilian Dental Science |
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Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heatingObjective: The aim of this study was to evaluate a Y-TZP ceramic sintered by a microwave protocol on volume shrinkage and surface roughness. Material and Methods: Twenty four (N=24) Y-TZP discs were fabricated by milling in CAD/CAM for size standardization. The mean final dimensions of the specimens were 15 mm X 1.6 mm. Samples were divided into 2 groups (n=12): conventional resistive heating sintering protocol (C - Control) and microwave sintering protocol (MO - experimental). For the characterization of the specimens, surface roughness (Ra and Rz parameters) was evaluated with a roughness tester, and volume shrinkage was measured with a hand micrometer. Data were statistically evaluated by Student’s t and Mann-Whitney U tests (?=0.05). Results: The roughness results were: 0.25 ?m ± 0.02 (Ra) and 2.68 ?m ± 0.666 (Rz) for the MO samples; 0.26 ?m ± 0.04 (Ra) and 2.73 ?m ± 0.461 (Rz) for the C group (Ra: p = 0.19; Rz: p = 0.81). The shrinkage results was: MO (21.02% ± 2.70) and C (20.10% ± 0.52) (p = 0.274). Conclusion: The conventional and microwave sintering methods were similar regarding surface roughness and volume shrinkage of Y-TZP dental ceramic.KeywordsBioceramics; Microwave sintering; Roughness surface; Zirconia.Institute of Science and Technology of São José dos Campos2017-12-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentimage/tiffimage/tiffimage/tiffimage/tiffimage/tiffapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttps://ojs.ict.unesp.br/index.php/cob/article/view/148110.14295/bds.2017.v20i4.1481Brazilian Dental Science; Vol. 20 No. 4 (2017): Oct. - Dec. / 2017 - Published December 2017; 124-129Brazilian Dental Science; v. 20 n. 4 (2017): Oct. - Dec. / 2017 - Published December 2017; 124-1292178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/1481/1201https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3099https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3100https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3101https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3102https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3103https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3104https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3105https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3106Copyright (c) 2017 Brazilian Dental Scienceinfo:eu-repo/semantics/openAccessBarchetta, Nayara FernandaNanni, Larissa GuazzelliMiranda, Jean SoaresLazar, Dolores Ribeiro RicciAssui, ValterSaavedra, Guilherme de Siqueira Ferreira Anzalone2020-01-28T12:12:49Zoai:ojs.pkp.sfu.ca:article/1481Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:30:14.218912Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating |
title |
Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating |
spellingShingle |
Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating Barchetta, Nayara Fernanda |
title_short |
Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating |
title_full |
Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating |
title_fullStr |
Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating |
title_full_unstemmed |
Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating |
title_sort |
Surface roughness and volumetric contraction of a Y-TZP ceramic sintered by microwave energy and by resistive heating |
author |
Barchetta, Nayara Fernanda |
author_facet |
Barchetta, Nayara Fernanda Nanni, Larissa Guazzelli Miranda, Jean Soares Lazar, Dolores Ribeiro Ricci Assui, Valter Saavedra, Guilherme de Siqueira Ferreira Anzalone |
author_role |
author |
author2 |
Nanni, Larissa Guazzelli Miranda, Jean Soares Lazar, Dolores Ribeiro Ricci Assui, Valter Saavedra, Guilherme de Siqueira Ferreira Anzalone |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Barchetta, Nayara Fernanda Nanni, Larissa Guazzelli Miranda, Jean Soares Lazar, Dolores Ribeiro Ricci Assui, Valter Saavedra, Guilherme de Siqueira Ferreira Anzalone |
description |
Objective: The aim of this study was to evaluate a Y-TZP ceramic sintered by a microwave protocol on volume shrinkage and surface roughness. Material and Methods: Twenty four (N=24) Y-TZP discs were fabricated by milling in CAD/CAM for size standardization. The mean final dimensions of the specimens were 15 mm X 1.6 mm. Samples were divided into 2 groups (n=12): conventional resistive heating sintering protocol (C - Control) and microwave sintering protocol (MO - experimental). For the characterization of the specimens, surface roughness (Ra and Rz parameters) was evaluated with a roughness tester, and volume shrinkage was measured with a hand micrometer. Data were statistically evaluated by Student’s t and Mann-Whitney U tests (?=0.05). Results: The roughness results were: 0.25 ?m ± 0.02 (Ra) and 2.68 ?m ± 0.666 (Rz) for the MO samples; 0.26 ?m ± 0.04 (Ra) and 2.73 ?m ± 0.461 (Rz) for the C group (Ra: p = 0.19; Rz: p = 0.81). The shrinkage results was: MO (21.02% ± 2.70) and C (20.10% ± 0.52) (p = 0.274). Conclusion: The conventional and microwave sintering methods were similar regarding surface roughness and volume shrinkage of Y-TZP dental ceramic.KeywordsBioceramics; Microwave sintering; Roughness surface; Zirconia. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1481 10.14295/bds.2017.v20i4.1481 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/1481 |
identifier_str_mv |
10.14295/bds.2017.v20i4.1481 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1481/1201 https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3099 https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3100 https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3101 https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3102 https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3103 https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3104 https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3105 https://ojs.ict.unesp.br/index.php/cob/article/view/1481/3106 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Brazilian Dental Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Brazilian Dental Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document image/tiff image/tiff image/tiff image/tiff image/tiff application/vnd.openxmlformats-officedocument.wordprocessingml.document |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 20 No. 4 (2017): Oct. - Dec. / 2017 - Published December 2017; 124-129 Brazilian Dental Science; v. 20 n. 4 (2017): Oct. - Dec. / 2017 - Published December 2017; 124-129 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346900209991680 |