Dimensional accuracy of different impression techniques of partially edentulous mandibular arch

Detalhes bibliográficos
Autor(a) principal: VITTI,Rafael Pino
Data de Publicação: 2017
Outros Autores: FEITOSA,Victor Pinheiro, BACCHI,Ataís, BRANDT,William Cunha, MIRANDA,Milton Edson, SINHORETI,Mário Alexandre Coelho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: RGO - Revista Gaúcha de Odontologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1981-86372017000100025
Resumo: ABSTRACT Objective: The purpose of this in vitro study was to assess and compare the dimensional accuracy of three impression techniques: 1-step putty/light-body, 2-step putty/light-body, and the monophase technique. Methods: A partially edentulous standard stainless steel mandibular arch cast with reference points on the teeth was used to make the impressions. The anteroposterior and transverse distances were measured. All impressions were made with a polyvinyl siloxane using stock metallic (1- and 2-step putty/light-body techniques) or acrylic resin (monophase technique) trays. The monophase impressions were made using a light-body material and the 1- and 2-step putty/light-body impressions with putty and light-body materials. After impression procedures, the accuracy of each technique was assessed measuring the stone casts (n = 5) poured from the impressions using a microscope at 30x magnification and at 0.5 µm accuracy. The data were analyzed statistically using 2-way ANOVA and Tukey's test (p<0.05). Results: Stone casts made by all techniques had significantly negative linear changes (shrinkage). The anteroposterior distances showed more dimensional changes than the transverse distances. The edentulous side showed more shrinkage than the anteroposterior side. Conclusion: No differences between the impression techniques were found, but significant dimensional changes were observed.
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spelling Dimensional accuracy of different impression techniques of partially edentulous mandibular archDental impression technique. Elastomers. Jawedentulouspartially.ABSTRACT Objective: The purpose of this in vitro study was to assess and compare the dimensional accuracy of three impression techniques: 1-step putty/light-body, 2-step putty/light-body, and the monophase technique. Methods: A partially edentulous standard stainless steel mandibular arch cast with reference points on the teeth was used to make the impressions. The anteroposterior and transverse distances were measured. All impressions were made with a polyvinyl siloxane using stock metallic (1- and 2-step putty/light-body techniques) or acrylic resin (monophase technique) trays. The monophase impressions were made using a light-body material and the 1- and 2-step putty/light-body impressions with putty and light-body materials. After impression procedures, the accuracy of each technique was assessed measuring the stone casts (n = 5) poured from the impressions using a microscope at 30x magnification and at 0.5 µm accuracy. The data were analyzed statistically using 2-way ANOVA and Tukey's test (p<0.05). Results: Stone casts made by all techniques had significantly negative linear changes (shrinkage). The anteroposterior distances showed more dimensional changes than the transverse distances. The edentulous side showed more shrinkage than the anteroposterior side. Conclusion: No differences between the impression techniques were found, but significant dimensional changes were observed.Faculdade São Leopoldo Mandic2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1981-86372017000100025RGO - Revista Gaúcha de Odontologia v.65 n.1 2017reponame:RGO - Revista Gaúcha de Odontologia (Online)instname:Faculdade São Leopoldo Mandic (FSLM)instacron:FSLM10.1590/1981-863720170001000043219info:eu-repo/semantics/openAccessVITTI,Rafael PinoFEITOSA,Victor PinheiroBACCHI,AtaísBRANDT,William CunhaMIRANDA,Milton EdsonSINHORETI,Mário Alexandre Coelhoeng2019-08-06T00:00:00Zoai:scielo:S1981-86372017000100025Revistahttp://revodonto.bvsalud.org/scielo.php?script=sci_serial&pid=1981-8637&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||contato@revistargo.com.br1981-86370103-6971opendoar:2019-08-06T00:00RGO - Revista Gaúcha de Odontologia (Online) - Faculdade São Leopoldo Mandic (FSLM)false
dc.title.none.fl_str_mv Dimensional accuracy of different impression techniques of partially edentulous mandibular arch
title Dimensional accuracy of different impression techniques of partially edentulous mandibular arch
spellingShingle Dimensional accuracy of different impression techniques of partially edentulous mandibular arch
VITTI,Rafael Pino
Dental impression technique. Elastomers. Jaw
edentulous
partially.
title_short Dimensional accuracy of different impression techniques of partially edentulous mandibular arch
title_full Dimensional accuracy of different impression techniques of partially edentulous mandibular arch
title_fullStr Dimensional accuracy of different impression techniques of partially edentulous mandibular arch
title_full_unstemmed Dimensional accuracy of different impression techniques of partially edentulous mandibular arch
title_sort Dimensional accuracy of different impression techniques of partially edentulous mandibular arch
author VITTI,Rafael Pino
author_facet VITTI,Rafael Pino
FEITOSA,Victor Pinheiro
BACCHI,Ataís
BRANDT,William Cunha
MIRANDA,Milton Edson
SINHORETI,Mário Alexandre Coelho
author_role author
author2 FEITOSA,Victor Pinheiro
BACCHI,Ataís
BRANDT,William Cunha
MIRANDA,Milton Edson
SINHORETI,Mário Alexandre Coelho
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv VITTI,Rafael Pino
FEITOSA,Victor Pinheiro
BACCHI,Ataís
BRANDT,William Cunha
MIRANDA,Milton Edson
SINHORETI,Mário Alexandre Coelho
dc.subject.por.fl_str_mv Dental impression technique. Elastomers. Jaw
edentulous
partially.
topic Dental impression technique. Elastomers. Jaw
edentulous
partially.
description ABSTRACT Objective: The purpose of this in vitro study was to assess and compare the dimensional accuracy of three impression techniques: 1-step putty/light-body, 2-step putty/light-body, and the monophase technique. Methods: A partially edentulous standard stainless steel mandibular arch cast with reference points on the teeth was used to make the impressions. The anteroposterior and transverse distances were measured. All impressions were made with a polyvinyl siloxane using stock metallic (1- and 2-step putty/light-body techniques) or acrylic resin (monophase technique) trays. The monophase impressions were made using a light-body material and the 1- and 2-step putty/light-body impressions with putty and light-body materials. After impression procedures, the accuracy of each technique was assessed measuring the stone casts (n = 5) poured from the impressions using a microscope at 30x magnification and at 0.5 µm accuracy. The data were analyzed statistically using 2-way ANOVA and Tukey's test (p<0.05). Results: Stone casts made by all techniques had significantly negative linear changes (shrinkage). The anteroposterior distances showed more dimensional changes than the transverse distances. The edentulous side showed more shrinkage than the anteroposterior side. Conclusion: No differences between the impression techniques were found, but significant dimensional changes were observed.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-01
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.1590/1981-863720170001000043219
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dc.publisher.none.fl_str_mv Faculdade São Leopoldo Mandic
publisher.none.fl_str_mv Faculdade São Leopoldo Mandic
dc.source.none.fl_str_mv RGO - Revista Gaúcha de Odontologia v.65 n.1 2017
reponame:RGO - Revista Gaúcha de Odontologia (Online)
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reponame_str RGO - Revista Gaúcha de Odontologia (Online)
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