Evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitis

Abstract This study aimed to examine the difference between the fractal dimension (FD) values of the mandibular trabecular bone and the panoramic mandibular index (PMI), mandibular cortical index (MCI) and mandibular cortical thickness (MCW) of patients with ankylosing spondylitis (AS) and healthy c...

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Main Authors: Melike Gulec, Mediha Erturk, Melek Tassoker, Muserref Basdemirci
Format: Article
Language:English
Published: Nature Portfolio 2023-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-47233-2
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author Melike Gulec
Mediha Erturk
Melek Tassoker
Muserref Basdemirci
author_facet Melike Gulec
Mediha Erturk
Melek Tassoker
Muserref Basdemirci
author_sort Melike Gulec
collection DOAJ
description Abstract This study aimed to examine the difference between the fractal dimension (FD) values of the mandibular trabecular bone and the panoramic mandibular index (PMI), mandibular cortical index (MCI) and mandibular cortical thickness (MCW) of patients with ankylosing spondylitis (AS) and healthy control group. A total of 184 individuals (92 cases, 92 controls), were examined in our study. PMI, MCI, and MCW values were calculated on panoramic images of all individuals. For FD values, the region of interest (ROI) was selected with the size of 100 × 100 pixels from the right-left gonial and interdental regions and 50 × 50 pixels from the condylar region. Degenerative changes in the temporomandibular joint (TMJ) region were recorded. PMI, MCI, and MCW values showed statistically significant differences between the groups (p = 0.000, p < 0.001). The radiological signs of mandibular cortical resorption were more severe in the case group than in the control group. PMI and MCW values were found to be lower in the case group than in the control group. It was determined that the number of C3 and C2 values, among the MCI values, was higher in the case group. Only the FD values of the ROI selected from the condyle region were found to be statistically significant and were lower in the case group (p = 0.026, p < 0.05). Degenerative changes in the TMJ region were significantly more frequent in the case groups (p = 0.000, p < 0.001). The fact that the mandibular cortex shows more resorptive features in individuals with AS may require further evaluation in terms of osteoporosis. Because of the low FD values of the condylar regions of these patients and the more frequent degenerative changes, the TMJ region should be followed carefully. Detailed examination of the mandibular cortex and condylar region is beneficial in patients with AS for screening and following osteoporotic changes in these individuals, which is essential for the patient’s life quality.
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spelling doaj.art-1f7473c86415432c947c79f47571a7932023-11-20T09:19:24ZengNature PortfolioScientific Reports2045-23222023-11-011311910.1038/s41598-023-47233-2Evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitisMelike Gulec0Mediha Erturk1Melek Tassoker2Muserref Basdemirci3Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Karamanoğlu Mehmetbey UniversityDepartment of Dentomaxillofacial Radiology, Faculty of Dentistry, Necmettin Erbakan UniversityDepartment of Dentomaxillofacial Radiology, Faculty of Dentistry, Necmettin Erbakan UniversityDepartment of Medical Genetics, Konya City HospitalAbstract This study aimed to examine the difference between the fractal dimension (FD) values of the mandibular trabecular bone and the panoramic mandibular index (PMI), mandibular cortical index (MCI) and mandibular cortical thickness (MCW) of patients with ankylosing spondylitis (AS) and healthy control group. A total of 184 individuals (92 cases, 92 controls), were examined in our study. PMI, MCI, and MCW values were calculated on panoramic images of all individuals. For FD values, the region of interest (ROI) was selected with the size of 100 × 100 pixels from the right-left gonial and interdental regions and 50 × 50 pixels from the condylar region. Degenerative changes in the temporomandibular joint (TMJ) region were recorded. PMI, MCI, and MCW values showed statistically significant differences between the groups (p = 0.000, p < 0.001). The radiological signs of mandibular cortical resorption were more severe in the case group than in the control group. PMI and MCW values were found to be lower in the case group than in the control group. It was determined that the number of C3 and C2 values, among the MCI values, was higher in the case group. Only the FD values of the ROI selected from the condyle region were found to be statistically significant and were lower in the case group (p = 0.026, p < 0.05). Degenerative changes in the TMJ region were significantly more frequent in the case groups (p = 0.000, p < 0.001). The fact that the mandibular cortex shows more resorptive features in individuals with AS may require further evaluation in terms of osteoporosis. Because of the low FD values of the condylar regions of these patients and the more frequent degenerative changes, the TMJ region should be followed carefully. Detailed examination of the mandibular cortex and condylar region is beneficial in patients with AS for screening and following osteoporotic changes in these individuals, which is essential for the patient’s life quality.https://doi.org/10.1038/s41598-023-47233-2
spellingShingle Melike Gulec
Mediha Erturk
Melek Tassoker
Muserref Basdemirci
Evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitis
Scientific Reports
title Evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitis
title_full Evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitis
title_fullStr Evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitis
title_full_unstemmed Evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitis
title_short Evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitis
title_sort evaluation of cortical and trabecular bone structure of the mandible in patients with ankylosing spondylitis
url https://doi.org/10.1038/s41598-023-47233-2
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