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 Cabrita, 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://hdl.handle.net/10400.8/8394
Resumo: 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 studyAdaptação de esqueletos metálicos de próteses parciais removíveis produzidos por CAD-CAM – estudo clínicoObjectives: 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.SPEMDIC-OnlineConceição, Pedro R.Franco, Margarida CabritaAlves, NunoPortugal, JaimeNeves, Cristina B.2023-04-17T14:07:41Z2021-12-232021-12-23T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.8/8394eng1646-289010.24873/j.rpemd.2021.12.851info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-17T15:57:14Zoai:iconline.ipleiria.pt:10400.8/8394Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:51:07.769556Repositório 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
Adaptação de esqueletos metálicos de próteses parciais removíveis produzidos por CAD-CAM – estudo clínico
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.
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 Cabrita
Alves, Nuno
Portugal, Jaime
Neves, Cristina B.
author_role author
author2 Franco, Margarida Cabrita
Alves, Nuno
Portugal, Jaime
Neves, Cristina B.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv IC-Online
dc.contributor.author.fl_str_mv Conceição, Pedro R.
Franco, Margarida Cabrita
Alves, Nuno
Portugal, Jaime
Neves, Cristina B.
description 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 2021-12-23
2021-12-23T00:00:00Z
2023-04-17T14:07:41Z
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10.24873/j.rpemd.2021.12.851
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