Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques

Detalhes bibliográficos
Autor(a) principal: Vitti,Rafael Pino
Data de Publicação: 2013
Outros Autores: Silva,Marcos Aurélio Bomfim da, Consani,Rafael Leonardo Xediek, Sinhoreti,Mário Alexandre Coelho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402013000500498
Resumo: The aim of this study was to measure and compare the dimensional accuracy of stone casts of a partially edentulous mandibular arch made by two condensation silicones, two addition silicones and three impression techniques (1-step putty/light-body, 2-step putty/light-body and monophase technique). A partially edentulous standard stainless steel mandibular arch cast was obtained with reference points on the permanent mandibular right and left canines, and permanent mandibular right and left second molars. The anteroposterior distances (between the mandibular left canine and second molar and between the mandibular right canine and second molar) and transverse distances (between the mandibular left and right canines and between the mandibular left and right second molars) of stainless steel cast were measured by a microscope at 30× magnification and 0.5 µm accuracy. All impressions were made with condensation or addition silicones. The 1- and 2-step putty/light-body impressions were accomplished with putty and light-body materials and the monophase impressions with light-body material only. After the impression procedures, accuracy of each material and technique was assessed measuring the stone casts poured (n=5) from the impressions, by the same microscope. The differences between the values of stone cast and stainless steel cast were calculated, presented as percentages and analyzed statistically by two-way ANOVA and the means compared by Tukey's test (α=0.05). All distances measured on stone casts showed altered dimensions with significantly negative linear changes (shrinkage) as compared to those of the stainless steel cast. The stone casts made from the addition silicones were dimensionally more accurate. No differences were found among the impression techniques.
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spelling Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniquessilicone elastomersdental impression techniquedental impression materialsdimensional accuracyThe aim of this study was to measure and compare the dimensional accuracy of stone casts of a partially edentulous mandibular arch made by two condensation silicones, two addition silicones and three impression techniques (1-step putty/light-body, 2-step putty/light-body and monophase technique). A partially edentulous standard stainless steel mandibular arch cast was obtained with reference points on the permanent mandibular right and left canines, and permanent mandibular right and left second molars. The anteroposterior distances (between the mandibular left canine and second molar and between the mandibular right canine and second molar) and transverse distances (between the mandibular left and right canines and between the mandibular left and right second molars) of stainless steel cast were measured by a microscope at 30× magnification and 0.5 µm accuracy. All impressions were made with condensation or addition silicones. The 1- and 2-step putty/light-body impressions were accomplished with putty and light-body materials and the monophase impressions with light-body material only. After the impression procedures, accuracy of each material and technique was assessed measuring the stone casts poured (n=5) from the impressions, by the same microscope. The differences between the values of stone cast and stainless steel cast were calculated, presented as percentages and analyzed statistically by two-way ANOVA and the means compared by Tukey's test (α=0.05). All distances measured on stone casts showed altered dimensions with significantly negative linear changes (shrinkage) as compared to those of the stainless steel cast. The stone casts made from the addition silicones were dimensionally more accurate. No differences were found among the impression techniques.Fundação Odontológica de Ribeirão Preto2013-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402013000500498Brazilian Dental Journal v.24 n.5 2013reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440201302334info:eu-repo/semantics/openAccessVitti,Rafael PinoSilva,Marcos Aurélio Bomfim daConsani,Rafael Leonardo XediekSinhoreti,Mário Alexandre Coelhoeng2015-10-27T00:00:00Zoai:scielo:S0103-64402013000500498Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2015-10-27T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques
title Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques
spellingShingle Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques
Vitti,Rafael Pino
silicone elastomers
dental impression technique
dental impression materials
dimensional accuracy
title_short Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques
title_full Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques
title_fullStr Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques
title_full_unstemmed Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques
title_sort Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materials and Three Impression Techniques
author Vitti,Rafael Pino
author_facet Vitti,Rafael Pino
Silva,Marcos Aurélio Bomfim da
Consani,Rafael Leonardo Xediek
Sinhoreti,Mário Alexandre Coelho
author_role author
author2 Silva,Marcos Aurélio Bomfim da
Consani,Rafael Leonardo Xediek
Sinhoreti,Mário Alexandre Coelho
author2_role author
author
author
dc.contributor.author.fl_str_mv Vitti,Rafael Pino
Silva,Marcos Aurélio Bomfim da
Consani,Rafael Leonardo Xediek
Sinhoreti,Mário Alexandre Coelho
dc.subject.por.fl_str_mv silicone elastomers
dental impression technique
dental impression materials
dimensional accuracy
topic silicone elastomers
dental impression technique
dental impression materials
dimensional accuracy
description The aim of this study was to measure and compare the dimensional accuracy of stone casts of a partially edentulous mandibular arch made by two condensation silicones, two addition silicones and three impression techniques (1-step putty/light-body, 2-step putty/light-body and monophase technique). A partially edentulous standard stainless steel mandibular arch cast was obtained with reference points on the permanent mandibular right and left canines, and permanent mandibular right and left second molars. The anteroposterior distances (between the mandibular left canine and second molar and between the mandibular right canine and second molar) and transverse distances (between the mandibular left and right canines and between the mandibular left and right second molars) of stainless steel cast were measured by a microscope at 30× magnification and 0.5 µm accuracy. All impressions were made with condensation or addition silicones. The 1- and 2-step putty/light-body impressions were accomplished with putty and light-body materials and the monophase impressions with light-body material only. After the impression procedures, accuracy of each material and technique was assessed measuring the stone casts poured (n=5) from the impressions, by the same microscope. The differences between the values of stone cast and stainless steel cast were calculated, presented as percentages and analyzed statistically by two-way ANOVA and the means compared by Tukey's test (α=0.05). All distances measured on stone casts showed altered dimensions with significantly negative linear changes (shrinkage) as compared to those of the stainless steel cast. The stone casts made from the addition silicones were dimensionally more accurate. No differences were found among the impression techniques.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-01
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=S0103-64402013000500498
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402013000500498
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-6440201302334
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.24 n.5 2013
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
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