Influence of casting methods on marginal and internal discrepancies of complete cast crowns
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402004000200008 |
Resumo: | The relationship between the application of die-spacer prior to wax pattern fabrication and metal removal from the inner surface of the casting on marginal and internal discrepancies of complete cast crowns was evaluated. One hundred and twenty complete crowns were cast with palladium-silver alloy melted by gas-oxygen torch or electrical resistance and cast with a centrifuge casting machine. After casting, the crowns were seated on each type of different marginal configuration dies (90-degree shoulder, 20-degree beveled shoulder, and 45-degree chamfered shoulder) with a static load of 90 N during 1 min. Evaluation of the marginal fit of the specimens was made using a digital micrometer. The crowns were embedded in acrylic resin and longitudinally sectioned to verify the internal discrepancy that occurred in lateral and occlusal interfaces with a digital micrometer. The data were submitted to ANOVA and Tukey's test with a significance level of 5%. The best marginal and inner fits were obtained with the gas-oxygen torch source. The 45-degree chamfered shoulder showed the best marginal and inner fit, and better internal relief was obtained in the crowns abraded with 50 µm Al2O3 particles. |
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Brazilian Dental Journal |
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Influence of casting methods on marginal and internal discrepancies of complete cast crownsdental alloycasting techniquesmarginal discrepancyThe relationship between the application of die-spacer prior to wax pattern fabrication and metal removal from the inner surface of the casting on marginal and internal discrepancies of complete cast crowns was evaluated. One hundred and twenty complete crowns were cast with palladium-silver alloy melted by gas-oxygen torch or electrical resistance and cast with a centrifuge casting machine. After casting, the crowns were seated on each type of different marginal configuration dies (90-degree shoulder, 20-degree beveled shoulder, and 45-degree chamfered shoulder) with a static load of 90 N during 1 min. Evaluation of the marginal fit of the specimens was made using a digital micrometer. The crowns were embedded in acrylic resin and longitudinally sectioned to verify the internal discrepancy that occurred in lateral and occlusal interfaces with a digital micrometer. The data were submitted to ANOVA and Tukey's test with a significance level of 5%. The best marginal and inner fits were obtained with the gas-oxygen torch source. The 45-degree chamfered shoulder showed the best marginal and inner fit, and better internal relief was obtained in the crowns abraded with 50 µm Al2O3 particles.Fundação Odontológica de Ribeirão Preto2004-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402004000200008Brazilian Dental Journal v.15 n.2 2004reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402004000200008info:eu-repo/semantics/openAccessMilan,Fábio MachadoConsani,SimonidesCorrer Sobrinho,LourençoSinhoreti,Mario Alexandre CoelhoSousa-Neto,Manoel D.Knowles,Jonathan C.eng2005-03-11T00:00:00Zoai:scielo:S0103-64402004000200008Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2005-03-11T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Influence of casting methods on marginal and internal discrepancies of complete cast crowns |
title |
Influence of casting methods on marginal and internal discrepancies of complete cast crowns |
spellingShingle |
Influence of casting methods on marginal and internal discrepancies of complete cast crowns Milan,Fábio Machado dental alloy casting techniques marginal discrepancy |
title_short |
Influence of casting methods on marginal and internal discrepancies of complete cast crowns |
title_full |
Influence of casting methods on marginal and internal discrepancies of complete cast crowns |
title_fullStr |
Influence of casting methods on marginal and internal discrepancies of complete cast crowns |
title_full_unstemmed |
Influence of casting methods on marginal and internal discrepancies of complete cast crowns |
title_sort |
Influence of casting methods on marginal and internal discrepancies of complete cast crowns |
author |
Milan,Fábio Machado |
author_facet |
Milan,Fábio Machado Consani,Simonides Correr Sobrinho,Lourenço Sinhoreti,Mario Alexandre Coelho Sousa-Neto,Manoel D. Knowles,Jonathan C. |
author_role |
author |
author2 |
Consani,Simonides Correr Sobrinho,Lourenço Sinhoreti,Mario Alexandre Coelho Sousa-Neto,Manoel D. Knowles,Jonathan C. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Milan,Fábio Machado Consani,Simonides Correr Sobrinho,Lourenço Sinhoreti,Mario Alexandre Coelho Sousa-Neto,Manoel D. Knowles,Jonathan C. |
dc.subject.por.fl_str_mv |
dental alloy casting techniques marginal discrepancy |
topic |
dental alloy casting techniques marginal discrepancy |
description |
The relationship between the application of die-spacer prior to wax pattern fabrication and metal removal from the inner surface of the casting on marginal and internal discrepancies of complete cast crowns was evaluated. One hundred and twenty complete crowns were cast with palladium-silver alloy melted by gas-oxygen torch or electrical resistance and cast with a centrifuge casting machine. After casting, the crowns were seated on each type of different marginal configuration dies (90-degree shoulder, 20-degree beveled shoulder, and 45-degree chamfered shoulder) with a static load of 90 N during 1 min. Evaluation of the marginal fit of the specimens was made using a digital micrometer. The crowns were embedded in acrylic resin and longitudinally sectioned to verify the internal discrepancy that occurred in lateral and occlusal interfaces with a digital micrometer. The data were submitted to ANOVA and Tukey's test with a significance level of 5%. The best marginal and inner fits were obtained with the gas-oxygen torch source. The 45-degree chamfered shoulder showed the best marginal and inner fit, and better internal relief was obtained in the crowns abraded with 50 µm Al2O3 particles. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402004000200008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402004000200008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-64402004000200008 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
dc.source.none.fl_str_mv |
Brazilian Dental Journal v.15 n.2 2004 reponame:Brazilian Dental Journal instname:Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP |
instname_str |
Fundação Odontológica de Ribeirão Preto (FUNORP) |
instacron_str |
FUNORP |
institution |
FUNORP |
reponame_str |
Brazilian Dental Journal |
collection |
Brazilian Dental Journal |
repository.name.fl_str_mv |
Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP) |
repository.mail.fl_str_mv |
bdj@forp.usp.br||sergio@fosjc.unesp.br |
_version_ |
1754204089748553728 |