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Standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study

BACKGROUND: To introduce a theoretical solution to a posteriori describe the pose of a cylindrical dental fixture as appearing on radiographs; to experimentally validate the method described. METHODS: The pose of a conventional dental implant was described by a triplet of angles (phi-pitch, theta-ro...

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Autores principales: Cosola, Saverio, Toti, Paolo, Peñarrocha-Diago, Miguel, Covani, Ugo, Brevi, Bruno Carlo, Peñarrocha-Oltra, David
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7937219/
https://www.ncbi.nlm.nih.gov/pubmed/33676469
http://dx.doi.org/10.1186/s12903-021-01448-9
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author Cosola, Saverio
Toti, Paolo
Peñarrocha-Diago, Miguel
Covani, Ugo
Brevi, Bruno Carlo
Peñarrocha-Oltra, David
author_facet Cosola, Saverio
Toti, Paolo
Peñarrocha-Diago, Miguel
Covani, Ugo
Brevi, Bruno Carlo
Peñarrocha-Oltra, David
author_sort Cosola, Saverio
collection PubMed
description BACKGROUND: To introduce a theoretical solution to a posteriori describe the pose of a cylindrical dental fixture as appearing on radiographs; to experimentally validate the method described. METHODS: The pose of a conventional dental implant was described by a triplet of angles (phi-pitch, theta-roll, and psi-yaw) which was calculated throughout vector analysis. Radiographic- and simulated-image obtained with an algorithm were compared to test effectiveness, reproducibility, and accuracy of the method. The length of the dental implant as appearing on the simulated image was calculated by the trigonometric function and then compared with real length as it appeared on a two-dimensional radiograph. RESULTS: Twenty radiographs were analyzed for the present in silico and retrospective study. Among 40 fittings, 37 resulted as resolved with residuals ≤ 1 mm. Similar results were obtained for radiographic and simulated implants with absolute errors of − 1.1° ± 3.9° for phi; − 0.9° ± 4.1° for theta; 0° ± 1.1° for psi. The real and simulated length of the implants appeared to be heavily correlated. Linear dependence was verified by the results of the robust linear regression: 0.9757 (slope), + 0.1344 mm (intercept), and an adjusted coefficient of determination of 0.9054. CONCLUSIONS: The method allowed clinicians to calculate, a posteriori, a single real triplet of angles (phi, theta, psi) by analyzing a two-dimensional radiograph and to identify cases where standardization of repeated intraoral radiographies was not achieved. The a posteriori standardization of two-dimensional radiographs could allowed the clinicians to minimize the patient’s exposure to ionizing radiations for the measurement of marginal bone levels around dental implants.
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spelling pubmed-79372192021-03-09 Standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study Cosola, Saverio Toti, Paolo Peñarrocha-Diago, Miguel Covani, Ugo Brevi, Bruno Carlo Peñarrocha-Oltra, David BMC Oral Health Research Article BACKGROUND: To introduce a theoretical solution to a posteriori describe the pose of a cylindrical dental fixture as appearing on radiographs; to experimentally validate the method described. METHODS: The pose of a conventional dental implant was described by a triplet of angles (phi-pitch, theta-roll, and psi-yaw) which was calculated throughout vector analysis. Radiographic- and simulated-image obtained with an algorithm were compared to test effectiveness, reproducibility, and accuracy of the method. The length of the dental implant as appearing on the simulated image was calculated by the trigonometric function and then compared with real length as it appeared on a two-dimensional radiograph. RESULTS: Twenty radiographs were analyzed for the present in silico and retrospective study. Among 40 fittings, 37 resulted as resolved with residuals ≤ 1 mm. Similar results were obtained for radiographic and simulated implants with absolute errors of − 1.1° ± 3.9° for phi; − 0.9° ± 4.1° for theta; 0° ± 1.1° for psi. The real and simulated length of the implants appeared to be heavily correlated. Linear dependence was verified by the results of the robust linear regression: 0.9757 (slope), + 0.1344 mm (intercept), and an adjusted coefficient of determination of 0.9054. CONCLUSIONS: The method allowed clinicians to calculate, a posteriori, a single real triplet of angles (phi, theta, psi) by analyzing a two-dimensional radiograph and to identify cases where standardization of repeated intraoral radiographies was not achieved. The a posteriori standardization of two-dimensional radiographs could allowed the clinicians to minimize the patient’s exposure to ionizing radiations for the measurement of marginal bone levels around dental implants. BioMed Central 2021-03-06 /pmc/articles/PMC7937219/ /pubmed/33676469 http://dx.doi.org/10.1186/s12903-021-01448-9 Text en © The Author(s) 2021 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/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research Article
Cosola, Saverio
Toti, Paolo
Peñarrocha-Diago, Miguel
Covani, Ugo
Brevi, Bruno Carlo
Peñarrocha-Oltra, David
Standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study
title Standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study
title_full Standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study
title_fullStr Standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study
title_full_unstemmed Standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study
title_short Standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study
title_sort standardization of three-dimensional pose of cylindrical implants from intraoral radiographs: a preliminary study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7937219/
https://www.ncbi.nlm.nih.gov/pubmed/33676469
http://dx.doi.org/10.1186/s12903-021-01448-9
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