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Is the panoramic mandibular index useful for bone quality evaluation?

PURPOSE: The aim of this study was to determine whether the panoramic mandibular index (PMI) is useful for assessing bone mineral density. We also analyzed the potential correlations between PMI parameters and patient age. MATERIALS AND METHODS: Four observers measured the PMI of both sides of the m...

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Autores principales: Kwon, Ah-Young, Huh, Kyung-Hoe, Yi, Won-Jin, Lee, Sam-Sun, Choi, Soon-Chul, Heo, Min-Suk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Academy of Oral and Maxillofacial Radiology 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5489673/
https://www.ncbi.nlm.nih.gov/pubmed/28680844
http://dx.doi.org/10.5624/isd.2017.47.2.87
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author Kwon, Ah-Young
Huh, Kyung-Hoe
Yi, Won-Jin
Lee, Sam-Sun
Choi, Soon-Chul
Heo, Min-Suk
author_facet Kwon, Ah-Young
Huh, Kyung-Hoe
Yi, Won-Jin
Lee, Sam-Sun
Choi, Soon-Chul
Heo, Min-Suk
author_sort Kwon, Ah-Young
collection PubMed
description PURPOSE: The aim of this study was to determine whether the panoramic mandibular index (PMI) is useful for assessing bone mineral density. We also analyzed the potential correlations between PMI parameters and patient age. MATERIALS AND METHODS: Four observers measured the PMI of both sides of the mental foramen using a picture archiving and communication system and images in the Digital Imaging and Communications in Medicine format. They studied 300 panoramic radiographic images of patients belonging to the following age groups: 40–49 years, 50–59 years, 60–69 years, 70–79 years, and 80–89 years. The observers were allowed to zoom in or out and to adjust the contrast of the images. Further, they were instructed to record the reasons for any measurements that could not be made. Then, we conducted a reliability analysis of the measured PMI and assessed the correlations between different patient age groups and the 3 parameters used for determining the PMI from the available data. RESULTS: Among the 600 data items collected, 23 items were considered unmeasurable by at least 1 observer for the following 4 reasons: postoperative state, lesion, unidentified mental foramen, and alveolar bone loss. The intraobserver reproducibility of the measurable data was 0.611-0.752. The mandibular cortical width (MCW) decreased significantly as patient age increased. CONCLUSION: PMI had limited usability when the margin of the mental foramen was not clear. In contrast, MCW, a parameter used for determining the PMI, had fewer drawbacks than the PMI with respect to bone mineral density measurements and exhibited a significant correlation with patient age.
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spelling pubmed-54896732017-07-05 Is the panoramic mandibular index useful for bone quality evaluation? Kwon, Ah-Young Huh, Kyung-Hoe Yi, Won-Jin Lee, Sam-Sun Choi, Soon-Chul Heo, Min-Suk Imaging Sci Dent Original Article PURPOSE: The aim of this study was to determine whether the panoramic mandibular index (PMI) is useful for assessing bone mineral density. We also analyzed the potential correlations between PMI parameters and patient age. MATERIALS AND METHODS: Four observers measured the PMI of both sides of the mental foramen using a picture archiving and communication system and images in the Digital Imaging and Communications in Medicine format. They studied 300 panoramic radiographic images of patients belonging to the following age groups: 40–49 years, 50–59 years, 60–69 years, 70–79 years, and 80–89 years. The observers were allowed to zoom in or out and to adjust the contrast of the images. Further, they were instructed to record the reasons for any measurements that could not be made. Then, we conducted a reliability analysis of the measured PMI and assessed the correlations between different patient age groups and the 3 parameters used for determining the PMI from the available data. RESULTS: Among the 600 data items collected, 23 items were considered unmeasurable by at least 1 observer for the following 4 reasons: postoperative state, lesion, unidentified mental foramen, and alveolar bone loss. The intraobserver reproducibility of the measurable data was 0.611-0.752. The mandibular cortical width (MCW) decreased significantly as patient age increased. CONCLUSION: PMI had limited usability when the margin of the mental foramen was not clear. In contrast, MCW, a parameter used for determining the PMI, had fewer drawbacks than the PMI with respect to bone mineral density measurements and exhibited a significant correlation with patient age. Korean Academy of Oral and Maxillofacial Radiology 2017-06 2017-06-22 /pmc/articles/PMC5489673/ /pubmed/28680844 http://dx.doi.org/10.5624/isd.2017.47.2.87 Text en Copyright © 2017 by Korean Academy of Oral and Maxillofacial Radiology http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Kwon, Ah-Young
Huh, Kyung-Hoe
Yi, Won-Jin
Lee, Sam-Sun
Choi, Soon-Chul
Heo, Min-Suk
Is the panoramic mandibular index useful for bone quality evaluation?
title Is the panoramic mandibular index useful for bone quality evaluation?
title_full Is the panoramic mandibular index useful for bone quality evaluation?
title_fullStr Is the panoramic mandibular index useful for bone quality evaluation?
title_full_unstemmed Is the panoramic mandibular index useful for bone quality evaluation?
title_short Is the panoramic mandibular index useful for bone quality evaluation?
title_sort is the panoramic mandibular index useful for bone quality evaluation?
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5489673/
https://www.ncbi.nlm.nih.gov/pubmed/28680844
http://dx.doi.org/10.5624/isd.2017.47.2.87
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