Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study

Detalhes bibliográficos
Autor(a) principal: Conceição,Pedro R.
Data de Publicação: 2021
Outros Autores: Franco,Margarida, Alves,Nuno, Portugal,Jaime, Neves,Cristina B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-28902021000400194
Resumo: Abstract Objectives: To assess the effect of a CAD-CAM protocol fabrication on the clinical fit accuracy of removable partial denture metal frameworks to abutment teeth. Methods: Fifteen patients with partial edentulism were selected to participate in this clinical study, and twenty dental arch rehabilitations were planned. For each dental arch (n=20), two cobalt-chromium frameworks were produced through two protocols: CAD-CAM production (experimental group); and conventional lost-wax casting technique (control group). Clinical fit accuracy was assessed using an indirect quantitative method to evaluate the gap between the framework occlusal rest and the corresponding rest seat. A silicone mold of that gap was obtained, digitized, and analyzed by micro-computed tomography. The two silicone molds obtained for each occlusal rest were overlapped and evaluated for thickness and volume. Data were analyzed with the paired t test for silicone thickness results and the Wilcoxon test for silicone volume results (α= 0.05). Results: Considering the two dependent variables under study, no statistically significant (p=0.441 for silicone thickness and p=0.204 for silicone volume) differences were found between groups. Conclusions: The results of this study suggest that the CAD-CAM protocol applied is a viable method for the production of removable partial denture metal frameworks.
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spelling Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical studyCAD-CAMClinical fit accuracyMicro-computed tomographyRemovable partial denture metalFrameworkAbstract Objectives: To assess the effect of a CAD-CAM protocol fabrication on the clinical fit accuracy of removable partial denture metal frameworks to abutment teeth. Methods: Fifteen patients with partial edentulism were selected to participate in this clinical study, and twenty dental arch rehabilitations were planned. For each dental arch (n=20), two cobalt-chromium frameworks were produced through two protocols: CAD-CAM production (experimental group); and conventional lost-wax casting technique (control group). Clinical fit accuracy was assessed using an indirect quantitative method to evaluate the gap between the framework occlusal rest and the corresponding rest seat. A silicone mold of that gap was obtained, digitized, and analyzed by micro-computed tomography. The two silicone molds obtained for each occlusal rest were overlapped and evaluated for thickness and volume. Data were analyzed with the paired t test for silicone thickness results and the Wilcoxon test for silicone volume results (α= 0.05). Results: Considering the two dependent variables under study, no statistically significant (p=0.441 for silicone thickness and p=0.204 for silicone volume) differences were found between groups. Conclusions: The results of this study suggest that the CAD-CAM protocol applied is a viable method for the production of removable partial denture metal frameworks.Sociedade Portuguesa de Estomatologia e Medicina Dentária2021-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-28902021000400194Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial v.62 n.4 2021reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-28902021000400194Conceição,Pedro R.Franco,MargaridaAlves,NunoPortugal,JaimeNeves,Cristina B.info:eu-repo/semantics/openAccess2024-02-06T17:21:09Zoai:scielo:S1646-28902021000400194Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:28:17.038278Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study
title Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study
spellingShingle Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study
Conceição,Pedro R.
CAD-CAM
Clinical fit accuracy
Micro-computed tomography
Removable partial denture metal
Framework
title_short Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study
title_full Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study
title_fullStr Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study
title_full_unstemmed Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study
title_sort Fit accuracy of removable partial denture metal frameworks produced by CAD-CAM - a clinical study
author Conceição,Pedro R.
author_facet Conceição,Pedro R.
Franco,Margarida
Alves,Nuno
Portugal,Jaime
Neves,Cristina B.
author_role author
author2 Franco,Margarida
Alves,Nuno
Portugal,Jaime
Neves,Cristina B.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Conceição,Pedro R.
Franco,Margarida
Alves,Nuno
Portugal,Jaime
Neves,Cristina B.
dc.subject.por.fl_str_mv CAD-CAM
Clinical fit accuracy
Micro-computed tomography
Removable partial denture metal
Framework
topic CAD-CAM
Clinical fit accuracy
Micro-computed tomography
Removable partial denture metal
Framework
description Abstract Objectives: To assess the effect of a CAD-CAM protocol fabrication on the clinical fit accuracy of removable partial denture metal frameworks to abutment teeth. Methods: Fifteen patients with partial edentulism were selected to participate in this clinical study, and twenty dental arch rehabilitations were planned. For each dental arch (n=20), two cobalt-chromium frameworks were produced through two protocols: CAD-CAM production (experimental group); and conventional lost-wax casting technique (control group). Clinical fit accuracy was assessed using an indirect quantitative method to evaluate the gap between the framework occlusal rest and the corresponding rest seat. A silicone mold of that gap was obtained, digitized, and analyzed by micro-computed tomography. The two silicone molds obtained for each occlusal rest were overlapped and evaluated for thickness and volume. Data were analyzed with the paired t test for silicone thickness results and the Wilcoxon test for silicone volume results (α= 0.05). Results: Considering the two dependent variables under study, no statistically significant (p=0.441 for silicone thickness and p=0.204 for silicone volume) differences were found between groups. Conclusions: The results of this study suggest that the CAD-CAM protocol applied is a viable method for the production of removable partial denture metal frameworks.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-01
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dc.identifier.uri.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S1646-28902021000400194
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dc.language.iso.fl_str_mv eng
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Portuguesa de Estomatologia e Medicina Dentária
publisher.none.fl_str_mv Sociedade Portuguesa de Estomatologia e Medicina Dentária
dc.source.none.fl_str_mv Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial v.62 n.4 2021
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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