Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium
Autor(a) principal: | |
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Data de Publicação: | 2007 |
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=S0103-64402007000300009 |
Resumo: | The goal of this study was to evaluate the effect of using die spacers on the marginal fit of NiCr (M1) and NiCrBe (M2) alloys and commercially pure titanium (cpTi) (M3) copings cast by the lost wax technique. Using a metal matrix, 45 resin added extra hard type IV stone models were obtained for the fabrication of wax patterns under the following conditions: no die spacer (A), with one die spacer layer (B) and with two die spacer layers (C), with five repetitions for each condition (alloy x die). Each die was waxed and the wax patterns were invested as per manufacturer's instructions. Three wax patterns were embedded in each casting ring, each corresponding to one of the conditions. Each coping, seated to the metal matrix by a seating pressure standardizing device (SPSD), was taken to an optical microscope for measurement of marginal discrepancy. The obtained data (µm) were analyzed statistically by ANOVA and Tukey' test (a=5%). There was statistically significant difference (p<0.05) among the materials (M1=110.67; M2=130.33 and M3=148.33). Regarding the use of the die spacer, there was a statistically significant difference (p<0.05) among the three conditions (A=162.00; B=131.06 and C=96.67). It was concluded that there is less marginal discrepancy with two die spacer layers. |
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Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titaniumdie spacermarginal adaptationcast crowntitaniumNiCr alloysThe goal of this study was to evaluate the effect of using die spacers on the marginal fit of NiCr (M1) and NiCrBe (M2) alloys and commercially pure titanium (cpTi) (M3) copings cast by the lost wax technique. Using a metal matrix, 45 resin added extra hard type IV stone models were obtained for the fabrication of wax patterns under the following conditions: no die spacer (A), with one die spacer layer (B) and with two die spacer layers (C), with five repetitions for each condition (alloy x die). Each die was waxed and the wax patterns were invested as per manufacturer's instructions. Three wax patterns were embedded in each casting ring, each corresponding to one of the conditions. Each coping, seated to the metal matrix by a seating pressure standardizing device (SPSD), was taken to an optical microscope for measurement of marginal discrepancy. The obtained data (µm) were analyzed statistically by ANOVA and Tukey' test (a=5%). There was statistically significant difference (p<0.05) among the materials (M1=110.67; M2=130.33 and M3=148.33). Regarding the use of the die spacer, there was a statistically significant difference (p<0.05) among the three conditions (A=162.00; B=131.06 and C=96.67). It was concluded that there is less marginal discrepancy with two die spacer layers.Fundação Odontológica de Ribeirão Preto2007-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402007000300009Brazilian Dental Journal v.18 n.3 2007reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402007000300009info:eu-repo/semantics/openAccessSoriani,Natércia CarreiraLeal,Mônica BarbosaPaulino,Silvana MariaPagnano,Valéria OliveiraBezzon,Osvaldo Luizeng2007-12-21T00:00:00Zoai:scielo:S0103-64402007000300009Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2007-12-21T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium |
title |
Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium |
spellingShingle |
Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium Soriani,Natércia Carreira die spacer marginal adaptation cast crown titanium NiCr alloys |
title_short |
Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium |
title_full |
Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium |
title_fullStr |
Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium |
title_full_unstemmed |
Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium |
title_sort |
Effect of the use of die spacer on the marginal fit of copings cast in NiCr, NiCrBe and commercially pure titanium |
author |
Soriani,Natércia Carreira |
author_facet |
Soriani,Natércia Carreira Leal,Mônica Barbosa Paulino,Silvana Maria Pagnano,Valéria Oliveira Bezzon,Osvaldo Luiz |
author_role |
author |
author2 |
Leal,Mônica Barbosa Paulino,Silvana Maria Pagnano,Valéria Oliveira Bezzon,Osvaldo Luiz |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Soriani,Natércia Carreira Leal,Mônica Barbosa Paulino,Silvana Maria Pagnano,Valéria Oliveira Bezzon,Osvaldo Luiz |
dc.subject.por.fl_str_mv |
die spacer marginal adaptation cast crown titanium NiCr alloys |
topic |
die spacer marginal adaptation cast crown titanium NiCr alloys |
description |
The goal of this study was to evaluate the effect of using die spacers on the marginal fit of NiCr (M1) and NiCrBe (M2) alloys and commercially pure titanium (cpTi) (M3) copings cast by the lost wax technique. Using a metal matrix, 45 resin added extra hard type IV stone models were obtained for the fabrication of wax patterns under the following conditions: no die spacer (A), with one die spacer layer (B) and with two die spacer layers (C), with five repetitions for each condition (alloy x die). Each die was waxed and the wax patterns were invested as per manufacturer's instructions. Three wax patterns were embedded in each casting ring, each corresponding to one of the conditions. Each coping, seated to the metal matrix by a seating pressure standardizing device (SPSD), was taken to an optical microscope for measurement of marginal discrepancy. The obtained data (µm) were analyzed statistically by ANOVA and Tukey' test (a=5%). There was statistically significant difference (p<0.05) among the materials (M1=110.67; M2=130.33 and M3=148.33). Regarding the use of the die spacer, there was a statistically significant difference (p<0.05) among the three conditions (A=162.00; B=131.06 and C=96.67). It was concluded that there is less marginal discrepancy with two die spacer layers. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-01-01 |
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=S0103-64402007000300009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402007000300009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-64402007000300009 |
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.18 n.3 2007 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_ |
1754204090533937152 |