An evaluation of the compression strength of gypsum according to proportion and manipulation

Detalhes bibliográficos
Autor(a) principal: Cardoso, Paulo E. C.
Data de Publicação: 2010
Outros Autores: Burmann, Paulo A., Anziliero, Luciano, Cardoso, Jomara M. F. S., Tavares, Andréa U., Sadek, Fernanda T.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian Dental Science
Texto Completo: https://ojs.ict.unesp.br/index.php/cob/article/view/343
Resumo: This study evaluated the compression strength of gypsum type IV and V according to 2 variables: 1) water proportioned randomly or as recommended by the manufacturer and 2) according to 3 (three) different groups of operators (dentists, technicians and dental students). 180 specimens, produced according to ADA regulation nr. 25 underwent, after seven days (dry resistance), the compression strength test in an universal testing machine. After statistical analyses of the data, there was no statistical significant difference regarding the group of operators. Regarding the variable proportion, the specimens manufactured using a random proportion of water/gypsum powder presented a lower compression value (626,2 Kgf/cm2) when compared to the group where the amount of water/gypsum powder followed the recommendation of the manufacturer (741,7 Kgf/cm2). This difference was statistically significant (p<0.01).
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spelling An evaluation of the compression strength of gypsum according to proportion and manipulationThis study evaluated the compression strength of gypsum type IV and V according to 2 variables: 1) water proportioned randomly or as recommended by the manufacturer and 2) according to 3 (three) different groups of operators (dentists, technicians and dental students). 180 specimens, produced according to ADA regulation nr. 25 underwent, after seven days (dry resistance), the compression strength test in an universal testing machine. After statistical analyses of the data, there was no statistical significant difference regarding the group of operators. Regarding the variable proportion, the specimens manufactured using a random proportion of water/gypsum powder presented a lower compression value (626,2 Kgf/cm2) when compared to the group where the amount of water/gypsum powder followed the recommendation of the manufacturer (741,7 Kgf/cm2). This difference was statistically significant (p<0.01).Institute of Science and Technology of São José dos Campos2010-08-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.ict.unesp.br/index.php/cob/article/view/34310.14295/bds.2005.v8i2.343Brazilian Dental Science; Vol. 8 No. 2 (2005)Brazilian Dental Science; v. 8 n. 2 (2005)2178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPporhttps://ojs.ict.unesp.br/index.php/cob/article/view/343/273Cardoso, Paulo E. C.Burmann, Paulo A.Anziliero, LucianoCardoso, Jomara M. F. S.Tavares, Andréa U.Sadek, Fernanda T.info:eu-repo/semantics/openAccess2018-08-30T09:12:48Zoai:ojs.pkp.sfu.ca:article/343Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:29:32.553819Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true
dc.title.none.fl_str_mv An evaluation of the compression strength of gypsum according to proportion and manipulation
title An evaluation of the compression strength of gypsum according to proportion and manipulation
spellingShingle An evaluation of the compression strength of gypsum according to proportion and manipulation
Cardoso, Paulo E. C.
title_short An evaluation of the compression strength of gypsum according to proportion and manipulation
title_full An evaluation of the compression strength of gypsum according to proportion and manipulation
title_fullStr An evaluation of the compression strength of gypsum according to proportion and manipulation
title_full_unstemmed An evaluation of the compression strength of gypsum according to proportion and manipulation
title_sort An evaluation of the compression strength of gypsum according to proportion and manipulation
author Cardoso, Paulo E. C.
author_facet Cardoso, Paulo E. C.
Burmann, Paulo A.
Anziliero, Luciano
Cardoso, Jomara M. F. S.
Tavares, Andréa U.
Sadek, Fernanda T.
author_role author
author2 Burmann, Paulo A.
Anziliero, Luciano
Cardoso, Jomara M. F. S.
Tavares, Andréa U.
Sadek, Fernanda T.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Cardoso, Paulo E. C.
Burmann, Paulo A.
Anziliero, Luciano
Cardoso, Jomara M. F. S.
Tavares, Andréa U.
Sadek, Fernanda T.
description This study evaluated the compression strength of gypsum type IV and V according to 2 variables: 1) water proportioned randomly or as recommended by the manufacturer and 2) according to 3 (three) different groups of operators (dentists, technicians and dental students). 180 specimens, produced according to ADA regulation nr. 25 underwent, after seven days (dry resistance), the compression strength test in an universal testing machine. After statistical analyses of the data, there was no statistical significant difference regarding the group of operators. Regarding the variable proportion, the specimens manufactured using a random proportion of water/gypsum powder presented a lower compression value (626,2 Kgf/cm2) when compared to the group where the amount of water/gypsum powder followed the recommendation of the manufacturer (741,7 Kgf/cm2). This difference was statistically significant (p<0.01).
publishDate 2010
dc.date.none.fl_str_mv 2010-08-13
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/343
10.14295/bds.2005.v8i2.343
url https://ojs.ict.unesp.br/index.php/cob/article/view/343
identifier_str_mv 10.14295/bds.2005.v8i2.343
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.ict.unesp.br/index.php/cob/article/view/343/273
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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. 8 No. 2 (2005)
Brazilian Dental Science; v. 8 n. 2 (2005)
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
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