A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment

Detalhes bibliográficos
Autor(a) principal: Andrade,Pâmela Cândida Aires Ribas de
Data de Publicação: 2012
Outros Autores: Luthi,Leonardo Flores, Stanley,Kyle, Cardoso,Antônio Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of applied oral science (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572012000500004
Resumo: OBJECTIVE: The aim of this study was to test a new portable vibrator for plaster pouring (developed for this purpose), comparing the effect of its use on the accuracy of working cast of implant-supported restorations to the conventional vibrator. MATERIAL AND METHODS: From a master cast with 2 implants, 30 transfer moldings were made randomly and divided into three groups: Group I (GI): pouring performed in an outsourced dental laboratory with conventional plaster vibrator (10 casts), Group II (GII): pouring performed in the laboratory of the Federal University of Santa Catarina (UFSC) with conventional plaster vibrator (10 casts) and Group III (GIII): pouring performed with the portable vibrator fabricated for this study (10 casts). The position of the analogue and marginal adaptation of the infrastructure were verified by testing the single screw on the master model and on the working model. The measurement of misfit was blindly performed with a precision microscope and analyzing unit, Quadra-Check 200. The data were statistically analyzed by analysis of variance (ANOVA) and the Holm-Sidak test (α=0.05). RESULTS: Means±standard deviations were as follows: GI: 19.19±4.73 µm; GII: 21.72±5.41 µm; GIII: 13.5±2.39 µm (P<0.05), with GIII significantly lower as compared to the other groups. CONCLUSION: Within the limitations of this study, it was concluded that a greater accuracy of working cast was achieved when a portable vibrator was used for casting molds.
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spelling A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutmentPlaster castsImplant-supported dental prosthesisDental impression materialsOBJECTIVE: The aim of this study was to test a new portable vibrator for plaster pouring (developed for this purpose), comparing the effect of its use on the accuracy of working cast of implant-supported restorations to the conventional vibrator. MATERIAL AND METHODS: From a master cast with 2 implants, 30 transfer moldings were made randomly and divided into three groups: Group I (GI): pouring performed in an outsourced dental laboratory with conventional plaster vibrator (10 casts), Group II (GII): pouring performed in the laboratory of the Federal University of Santa Catarina (UFSC) with conventional plaster vibrator (10 casts) and Group III (GIII): pouring performed with the portable vibrator fabricated for this study (10 casts). The position of the analogue and marginal adaptation of the infrastructure were verified by testing the single screw on the master model and on the working model. The measurement of misfit was blindly performed with a precision microscope and analyzing unit, Quadra-Check 200. The data were statistically analyzed by analysis of variance (ANOVA) and the Holm-Sidak test (α=0.05). RESULTS: Means±standard deviations were as follows: GI: 19.19±4.73 µm; GII: 21.72±5.41 µm; GIII: 13.5±2.39 µm (P<0.05), with GIII significantly lower as compared to the other groups. CONCLUSION: Within the limitations of this study, it was concluded that a greater accuracy of working cast was achieved when a portable vibrator was used for casting molds.Faculdade De Odontologia De Bauru - USP2012-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572012000500004Journal of Applied Oral Science v.20 n.5 2012reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S1678-77572012000500004info:eu-repo/semantics/openAccessAndrade,Pâmela Cândida Aires Ribas deLuthi,Leonardo FloresStanley,KyleCardoso,Antônio Carloseng2012-11-06T00:00:00Zoai:scielo:S1678-77572012000500004Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2012-11-06T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
title A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
spellingShingle A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
Andrade,Pâmela Cândida Aires Ribas de
Plaster casts
Implant-supported dental prosthesis
Dental impression materials
title_short A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
title_full A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
title_fullStr A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
title_full_unstemmed A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
title_sort A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
author Andrade,Pâmela Cândida Aires Ribas de
author_facet Andrade,Pâmela Cândida Aires Ribas de
Luthi,Leonardo Flores
Stanley,Kyle
Cardoso,Antônio Carlos
author_role author
author2 Luthi,Leonardo Flores
Stanley,Kyle
Cardoso,Antônio Carlos
author2_role author
author
author
dc.contributor.author.fl_str_mv Andrade,Pâmela Cândida Aires Ribas de
Luthi,Leonardo Flores
Stanley,Kyle
Cardoso,Antônio Carlos
dc.subject.por.fl_str_mv Plaster casts
Implant-supported dental prosthesis
Dental impression materials
topic Plaster casts
Implant-supported dental prosthesis
Dental impression materials
description OBJECTIVE: The aim of this study was to test a new portable vibrator for plaster pouring (developed for this purpose), comparing the effect of its use on the accuracy of working cast of implant-supported restorations to the conventional vibrator. MATERIAL AND METHODS: From a master cast with 2 implants, 30 transfer moldings were made randomly and divided into three groups: Group I (GI): pouring performed in an outsourced dental laboratory with conventional plaster vibrator (10 casts), Group II (GII): pouring performed in the laboratory of the Federal University of Santa Catarina (UFSC) with conventional plaster vibrator (10 casts) and Group III (GIII): pouring performed with the portable vibrator fabricated for this study (10 casts). The position of the analogue and marginal adaptation of the infrastructure were verified by testing the single screw on the master model and on the working model. The measurement of misfit was blindly performed with a precision microscope and analyzing unit, Quadra-Check 200. The data were statistically analyzed by analysis of variance (ANOVA) and the Holm-Sidak test (α=0.05). RESULTS: Means±standard deviations were as follows: GI: 19.19±4.73 µm; GII: 21.72±5.41 µm; GIII: 13.5±2.39 µm (P<0.05), with GIII significantly lower as compared to the other groups. CONCLUSION: Within the limitations of this study, it was concluded that a greater accuracy of working cast was achieved when a portable vibrator was used for casting molds.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-01
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=S1678-77572012000500004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572012000500004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1678-77572012000500004
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 Faculdade De Odontologia De Bauru - USP
publisher.none.fl_str_mv Faculdade De Odontologia De Bauru - USP
dc.source.none.fl_str_mv Journal of Applied Oral Science v.20 n.5 2012
reponame:Journal of applied oral science (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Journal of applied oral science (Online)
collection Journal of applied oral science (Online)
repository.name.fl_str_mv Journal of applied oral science (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||jaos@usp.br
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