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Duplicating Complete Dentures with Conventional and Digital Methods: Comparisons of Trueness and Efficiency

Background: A complete denture (CD) can be duplicated with a conventional or digital protocol. However, there are no comparative studies of these methods. This study aimed to compare the trueness and efficiency of conventional and digital CD duplication methods. Methods: A mandibular CD was digitize...

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Autores principales: Chen, Li, Li, Deli, Zhou, Jianfeng, Lin, Wei-Shao, Tan, Jianguo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8947193/
https://www.ncbi.nlm.nih.gov/pubmed/35323238
http://dx.doi.org/10.3390/dj10030035
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author Chen, Li
Li, Deli
Zhou, Jianfeng
Lin, Wei-Shao
Tan, Jianguo
author_facet Chen, Li
Li, Deli
Zhou, Jianfeng
Lin, Wei-Shao
Tan, Jianguo
author_sort Chen, Li
collection PubMed
description Background: A complete denture (CD) can be duplicated with a conventional or digital protocol. However, there are no comparative studies of these methods. This study aimed to compare the trueness and efficiency of conventional and digital CD duplication methods. Methods: A mandibular CD was digitized as the virtual reference model and duplicated using five methods (n = 10). The trueness (root mean square (RMS)) was calculated for the whole denture and across the dentition, cameo denture extension, and intaglio portions. The manual labor time spent during denture duplication was also recorded at different steps. The trueness and labor time comparisons were statistically analyzed among the five groups (α = 0.05). Results: The conventional group was the least true with the largest RMS (mean, 95% CI) in all of the comparisons. The four digital groups yielded similar trueness values across the dentition, cameo denture extension, and intaglio areas, yet they had a significant difference in the whole denture comparison between the Digital-CBCT-SLA printer (0.17, 0.15–0.19 mm) and Digital-Laboratory Scanner-SLA printer (0.13, 0.11–0.15 mm). The conventional protocol required longer trimming and finishing time (7.55 ± 1.02 min), as well as total labor time (27.64 ± 1.72 min) than the other four digital techniques. Conclusions: The conventional CD duplication method was less true and efficient than digital techniques.
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spelling pubmed-89471932022-03-25 Duplicating Complete Dentures with Conventional and Digital Methods: Comparisons of Trueness and Efficiency Chen, Li Li, Deli Zhou, Jianfeng Lin, Wei-Shao Tan, Jianguo Dent J (Basel) Article Background: A complete denture (CD) can be duplicated with a conventional or digital protocol. However, there are no comparative studies of these methods. This study aimed to compare the trueness and efficiency of conventional and digital CD duplication methods. Methods: A mandibular CD was digitized as the virtual reference model and duplicated using five methods (n = 10). The trueness (root mean square (RMS)) was calculated for the whole denture and across the dentition, cameo denture extension, and intaglio portions. The manual labor time spent during denture duplication was also recorded at different steps. The trueness and labor time comparisons were statistically analyzed among the five groups (α = 0.05). Results: The conventional group was the least true with the largest RMS (mean, 95% CI) in all of the comparisons. The four digital groups yielded similar trueness values across the dentition, cameo denture extension, and intaglio areas, yet they had a significant difference in the whole denture comparison between the Digital-CBCT-SLA printer (0.17, 0.15–0.19 mm) and Digital-Laboratory Scanner-SLA printer (0.13, 0.11–0.15 mm). The conventional protocol required longer trimming and finishing time (7.55 ± 1.02 min), as well as total labor time (27.64 ± 1.72 min) than the other four digital techniques. Conclusions: The conventional CD duplication method was less true and efficient than digital techniques. MDPI 2022-03-01 /pmc/articles/PMC8947193/ /pubmed/35323238 http://dx.doi.org/10.3390/dj10030035 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Li
Li, Deli
Zhou, Jianfeng
Lin, Wei-Shao
Tan, Jianguo
Duplicating Complete Dentures with Conventional and Digital Methods: Comparisons of Trueness and Efficiency
title Duplicating Complete Dentures with Conventional and Digital Methods: Comparisons of Trueness and Efficiency
title_full Duplicating Complete Dentures with Conventional and Digital Methods: Comparisons of Trueness and Efficiency
title_fullStr Duplicating Complete Dentures with Conventional and Digital Methods: Comparisons of Trueness and Efficiency
title_full_unstemmed Duplicating Complete Dentures with Conventional and Digital Methods: Comparisons of Trueness and Efficiency
title_short Duplicating Complete Dentures with Conventional and Digital Methods: Comparisons of Trueness and Efficiency
title_sort duplicating complete dentures with conventional and digital methods: comparisons of trueness and efficiency
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8947193/
https://www.ncbi.nlm.nih.gov/pubmed/35323238
http://dx.doi.org/10.3390/dj10030035
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