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Trueness and precision of digital implant impressions by intraoral scanners: a literature review

BACKGROUND: With the development of intraoral scanners, their trueness and precision have been evaluated in various studies. Through these studies, the amount of accuracy that can be expected from intraoral scanners has gradually been disclosed, at the same time, it was difficult to integrate the re...

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Autores principales: Sanda, Minoru, Miyoshi, Keita, Baba, Kazuyoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8313656/
https://www.ncbi.nlm.nih.gov/pubmed/34312701
http://dx.doi.org/10.1186/s40729-021-00352-9
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author Sanda, Minoru
Miyoshi, Keita
Baba, Kazuyoshi
author_facet Sanda, Minoru
Miyoshi, Keita
Baba, Kazuyoshi
author_sort Sanda, Minoru
collection PubMed
description BACKGROUND: With the development of intraoral scanners, their trueness and precision have been evaluated in various studies. Through these studies, the amount of accuracy that can be expected from intraoral scanners has gradually been disclosed, at the same time, it was difficult to integrate the results of individual studies due to differences in evaluation methods between studies. The purpose of this article was to review the currently available evidence, summarise what is currently known about IOS, analyse the evaluation methods of each study, and list points to note when interpreting the results. MAIN TEXT: Most of the studies were conducted in vitro. The accuracy is evaluated in situations such as single missing teeth, partially edentulous ridges with multiple missing teeth, and fully edentulous jaws. To evaluate the accuracy, direct measurement of distance or angle by coordinate measuring machines and calculation of surface deviation by superimposing surface data were predominantly performed. The influence of parameters such as the number of implants, distance between implants, angle between implants, and experience of the operator was evaluated. Many studies have shown that trueness tends to decrease as the distance between the implants and the scan range increases. It was agreed that the implant angle did not affect either trueness or precision. Regarding other factors, the results varied among studies. Therefore, the effects of these parameters are not clear. CONCLUSIONS: Heterogeneity in the research methodology was prevalent among the studies considered in this review. Therefore, we cannot make a decisive statement regarding the trueness and precision of digital implant impressions by IOSs. So far, the comparison of the numerical values of error between studies has yet to elucidate any clear answers, despite small methodological differences.
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spelling pubmed-83136562021-08-16 Trueness and precision of digital implant impressions by intraoral scanners: a literature review Sanda, Minoru Miyoshi, Keita Baba, Kazuyoshi Int J Implant Dent Review BACKGROUND: With the development of intraoral scanners, their trueness and precision have been evaluated in various studies. Through these studies, the amount of accuracy that can be expected from intraoral scanners has gradually been disclosed, at the same time, it was difficult to integrate the results of individual studies due to differences in evaluation methods between studies. The purpose of this article was to review the currently available evidence, summarise what is currently known about IOS, analyse the evaluation methods of each study, and list points to note when interpreting the results. MAIN TEXT: Most of the studies were conducted in vitro. The accuracy is evaluated in situations such as single missing teeth, partially edentulous ridges with multiple missing teeth, and fully edentulous jaws. To evaluate the accuracy, direct measurement of distance or angle by coordinate measuring machines and calculation of surface deviation by superimposing surface data were predominantly performed. The influence of parameters such as the number of implants, distance between implants, angle between implants, and experience of the operator was evaluated. Many studies have shown that trueness tends to decrease as the distance between the implants and the scan range increases. It was agreed that the implant angle did not affect either trueness or precision. Regarding other factors, the results varied among studies. Therefore, the effects of these parameters are not clear. CONCLUSIONS: Heterogeneity in the research methodology was prevalent among the studies considered in this review. Therefore, we cannot make a decisive statement regarding the trueness and precision of digital implant impressions by IOSs. So far, the comparison of the numerical values of error between studies has yet to elucidate any clear answers, despite small methodological differences. Springer Berlin Heidelberg 2021-07-27 /pmc/articles/PMC8313656/ /pubmed/34312701 http://dx.doi.org/10.1186/s40729-021-00352-9 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Review
Sanda, Minoru
Miyoshi, Keita
Baba, Kazuyoshi
Trueness and precision of digital implant impressions by intraoral scanners: a literature review
title Trueness and precision of digital implant impressions by intraoral scanners: a literature review
title_full Trueness and precision of digital implant impressions by intraoral scanners: a literature review
title_fullStr Trueness and precision of digital implant impressions by intraoral scanners: a literature review
title_full_unstemmed Trueness and precision of digital implant impressions by intraoral scanners: a literature review
title_short Trueness and precision of digital implant impressions by intraoral scanners: a literature review
title_sort trueness and precision of digital implant impressions by intraoral scanners: a literature review
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8313656/
https://www.ncbi.nlm.nih.gov/pubmed/34312701
http://dx.doi.org/10.1186/s40729-021-00352-9
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