From Nasion to Sellion: repositioning landmarks for radioprotection-tailored 3D cephalometric analysis

Purpose The present study aimed to three-dimensionally evaluate the correlation between cephalometric measurements utilizing Sellion in place of Nasion.Material and methods A pilot study using 25 CBCTs was carried out to determine the required sample size, reaching a minimum of 136 patients was requ...

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Main Authors: Marco Serafin, Benedetta Baldini, Elisa Boccalari, Salvatore Bocchieri, Sergio Sambataro, Chiarella Sforza, Giuseppe Baselli, Gianluca Martino Tartaglia, Alberto Caprioglio
Format: Article
Language:English
Published: Taylor & Francis Group 2024-10-01
Series:Clinical and Investigative Orthodontics
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Online Access:https://www.tandfonline.com/doi/10.1080/27705781.2024.2419300
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author Marco Serafin
Benedetta Baldini
Elisa Boccalari
Salvatore Bocchieri
Sergio Sambataro
Chiarella Sforza
Giuseppe Baselli
Gianluca Martino Tartaglia
Alberto Caprioglio
author_facet Marco Serafin
Benedetta Baldini
Elisa Boccalari
Salvatore Bocchieri
Sergio Sambataro
Chiarella Sforza
Giuseppe Baselli
Gianluca Martino Tartaglia
Alberto Caprioglio
author_sort Marco Serafin
collection DOAJ
description Purpose The present study aimed to three-dimensionally evaluate the correlation between cephalometric measurements utilizing Sellion in place of Nasion.Material and methods A pilot study using 25 CBCTs was carried out to determine the required sample size, reaching a minimum of 136 patients was required to validate the correlation between Nasion(N)- and Sellion(Se)-related measurements. Eight landmarks were manually annotated on full cranium CBCTs, resulting in six skeletal and six cutaneous/skeletal measurements. Therefore, data were statistically analysed after outliers’ detection and intraclass correlation coefficient (ICC) calculation. Pearson correlation coefficient (r) was used to assess the correlation between Nasion and Sellion measurements. At the end, simple linear regression was performed. Values of p < 0.01 and r > 0.80 were considered statistically and clinically relevant, respectively.Results ICC revealed a substantial degree of consistency. A total of 214 CBCTs were included in the present study. Pearson test revealed highly significant correlations for all the tested variables; the highest coefficient was found between N^Me^Go vs Se^Me^Go (r = 0.989, p < 0.001) while the lowest among SNA vs SSeA (ρ = 0.814, p < 0.001). Finally, linear regression provided the new norm range values for the Sellion-based measurements.Conclusion Pearson’s coefficients between Sellion- and Nasion-related measurements exhibited significantly high levels of correlation, suggesting the potential use of Sellion-based measurements for innovative cephalometric analyses. This method might comply with radiation protection principles in CBCT-based orthodontic cephalometry.
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institution Kabale University
issn 2770-5781
2770-579X
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spelling doaj-art-92aaf555daf043ae9fe2bcf476b76acb2025-01-28T04:01:18ZengTaylor & Francis GroupClinical and Investigative Orthodontics2770-57812770-579X2024-10-0183415816510.1080/27705781.2024.2419300From Nasion to Sellion: repositioning landmarks for radioprotection-tailored 3D cephalometric analysisMarco Serafin0Benedetta Baldini1Elisa Boccalari2Salvatore Bocchieri3Sergio Sambataro4Chiarella Sforza5Giuseppe Baselli6Gianluca Martino Tartaglia7Alberto Caprioglio8Department of Biomedical Sciences for Health, University of Milan, Milan, ItalyDepartment of Electronics, Information and Bioengineering, Politecnico of Milan, Milan, ItalyDepartment of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, ItalyDepartment of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, Messina, ItalyPrivate practice in Catania, ItalyDepartment of Biomedical Sciences for Health, University of Milan, Milan, ItalyDepartment of Electronics, Information and Bioengineering, Politecnico of Milan, Milan, ItalyDepartment of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, ItalyDepartment of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, ItalyPurpose The present study aimed to three-dimensionally evaluate the correlation between cephalometric measurements utilizing Sellion in place of Nasion.Material and methods A pilot study using 25 CBCTs was carried out to determine the required sample size, reaching a minimum of 136 patients was required to validate the correlation between Nasion(N)- and Sellion(Se)-related measurements. Eight landmarks were manually annotated on full cranium CBCTs, resulting in six skeletal and six cutaneous/skeletal measurements. Therefore, data were statistically analysed after outliers’ detection and intraclass correlation coefficient (ICC) calculation. Pearson correlation coefficient (r) was used to assess the correlation between Nasion and Sellion measurements. At the end, simple linear regression was performed. Values of p < 0.01 and r > 0.80 were considered statistically and clinically relevant, respectively.Results ICC revealed a substantial degree of consistency. A total of 214 CBCTs were included in the present study. Pearson test revealed highly significant correlations for all the tested variables; the highest coefficient was found between N^Me^Go vs Se^Me^Go (r = 0.989, p < 0.001) while the lowest among SNA vs SSeA (ρ = 0.814, p < 0.001). Finally, linear regression provided the new norm range values for the Sellion-based measurements.Conclusion Pearson’s coefficients between Sellion- and Nasion-related measurements exhibited significantly high levels of correlation, suggesting the potential use of Sellion-based measurements for innovative cephalometric analyses. This method might comply with radiation protection principles in CBCT-based orthodontic cephalometry.https://www.tandfonline.com/doi/10.1080/27705781.2024.2419300CBCTnasionsellionthree-dimensional cephalometry
spellingShingle Marco Serafin
Benedetta Baldini
Elisa Boccalari
Salvatore Bocchieri
Sergio Sambataro
Chiarella Sforza
Giuseppe Baselli
Gianluca Martino Tartaglia
Alberto Caprioglio
From Nasion to Sellion: repositioning landmarks for radioprotection-tailored 3D cephalometric analysis
Clinical and Investigative Orthodontics
CBCT
nasion
sellion
three-dimensional cephalometry
title From Nasion to Sellion: repositioning landmarks for radioprotection-tailored 3D cephalometric analysis
title_full From Nasion to Sellion: repositioning landmarks for radioprotection-tailored 3D cephalometric analysis
title_fullStr From Nasion to Sellion: repositioning landmarks for radioprotection-tailored 3D cephalometric analysis
title_full_unstemmed From Nasion to Sellion: repositioning landmarks for radioprotection-tailored 3D cephalometric analysis
title_short From Nasion to Sellion: repositioning landmarks for radioprotection-tailored 3D cephalometric analysis
title_sort from nasion to sellion repositioning landmarks for radioprotection tailored 3d cephalometric analysis
topic CBCT
nasion
sellion
three-dimensional cephalometry
url https://www.tandfonline.com/doi/10.1080/27705781.2024.2419300
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