Sex dependent differences of temporomandibular condylar bone mineral density distribution

Paul J. Kim; Zachary Skabelund; Sonya Kalim; Christine H. Lee; Nathan Kim; Kristen Nguyen; Hany Emam; Lisa Knobloch; Toru Deguchi; Minji Kim; Do Gyoon Kim

doi:10.1080/08869634.2022.2137131

Sex dependent differences of temporomandibular condylar bone mineral density distribution

Paul J. Kim, Zachary Skabelund, Sonya Kalim, Christine H. Lee, Nathan Kim, Kristen Nguyen, Hany Emam, Lisa Knobloch, Toru Deguchi, Minji Kim, Do Gyoon Kim

Department of Dentistry

Research output: Contribution to journal › Article › peer-review

Abstract

Objective: The objective of this study was to examine whether bone mineral density (BMD) distribution in the mandibular condyle and facial morphology are associated with temporomandibular joint osteoarthritis (TMJ OA) using clinical cone beam computed tomography (CBCT) images. Methods: CBCT images of 35 adults (16 male and 19 female) were examined to obtain TMJ OA counts, cephalometric analyses, and histograms of gray values that are proportional to BMD. Mean, standard deviation (SD), and low and high gray values at the 5th and 95th percentiles (Low₅ and High₅) of the histograms were measured. Results: The female group had significantly higher values of TMJ OA counts, mean, and SD on the right mandibular condyle, High₅ on both sides, and all gray value parameters for total (right + left) than the male group. Conclusion: Comprehensive analysis of BMD distribution in the mandibular condyle can provide useful information for prognosis of TMJ OA.

Original language	English
Pages (from-to)	321-327
Number of pages	7
Journal	Cranio - Journal of Craniomandibular and Sleep Practice
Volume	43
Issue number	2
DOIs	https://doi.org/10.1080/08869634.2022.2137131
State	Published - 2025

Bibliographical note

Publisher Copyright:
© 2022 The Author(s). Published with license by Taylor & Francis Group, LLC.

Keywords

Sex differences
bone mineral density
cephalogram
osteoarthritis
temporomandibular joint

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10.1080/08869634.2022.2137131

Cite this

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title = "Sex dependent differences of temporomandibular condylar bone mineral density distribution",

abstract = "Objective: The objective of this study was to examine whether bone mineral density (BMD) distribution in the mandibular condyle and facial morphology are associated with temporomandibular joint osteoarthritis (TMJ OA) using clinical cone beam computed tomography (CBCT) images. Methods: CBCT images of 35 adults (16 male and 19 female) were examined to obtain TMJ OA counts, cephalometric analyses, and histograms of gray values that are proportional to BMD. Mean, standard deviation (SD), and low and high gray values at the 5th and 95th percentiles (Low5 and High5) of the histograms were measured. Results: The female group had significantly higher values of TMJ OA counts, mean, and SD on the right mandibular condyle, High5 on both sides, and all gray value parameters for total (right + left) than the male group. Conclusion: Comprehensive analysis of BMD distribution in the mandibular condyle can provide useful information for prognosis of TMJ OA.",

keywords = "Sex differences, bone mineral density, cephalogram, osteoarthritis, temporomandibular joint",

author = "Kim, {Paul J.} and Zachary Skabelund and Sonya Kalim and Lee, {Christine H.} and Nathan Kim and Kristen Nguyen and Hany Emam and Lisa Knobloch and Toru Deguchi and Minji Kim and Kim, {Do Gyoon}",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s). Published with license by Taylor & Francis Group, LLC.",

year = "2025",

doi = "10.1080/08869634.2022.2137131",

language = "English",

volume = "43",

pages = "321--327",

journal = "Cranio - Journal of Craniomandibular and Sleep Practice",

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T1 - Sex dependent differences of temporomandibular condylar bone mineral density distribution

AU - Kim, Paul J.

AU - Skabelund, Zachary

AU - Kalim, Sonya

AU - Lee, Christine H.

AU - Kim, Nathan

AU - Nguyen, Kristen

AU - Emam, Hany

AU - Knobloch, Lisa

AU - Deguchi, Toru

AU - Kim, Minji

AU - Kim, Do Gyoon

PY - 2025

Y1 - 2025

N2 - Objective: The objective of this study was to examine whether bone mineral density (BMD) distribution in the mandibular condyle and facial morphology are associated with temporomandibular joint osteoarthritis (TMJ OA) using clinical cone beam computed tomography (CBCT) images. Methods: CBCT images of 35 adults (16 male and 19 female) were examined to obtain TMJ OA counts, cephalometric analyses, and histograms of gray values that are proportional to BMD. Mean, standard deviation (SD), and low and high gray values at the 5th and 95th percentiles (Low5 and High5) of the histograms were measured. Results: The female group had significantly higher values of TMJ OA counts, mean, and SD on the right mandibular condyle, High5 on both sides, and all gray value parameters for total (right + left) than the male group. Conclusion: Comprehensive analysis of BMD distribution in the mandibular condyle can provide useful information for prognosis of TMJ OA.

AB - Objective: The objective of this study was to examine whether bone mineral density (BMD) distribution in the mandibular condyle and facial morphology are associated with temporomandibular joint osteoarthritis (TMJ OA) using clinical cone beam computed tomography (CBCT) images. Methods: CBCT images of 35 adults (16 male and 19 female) were examined to obtain TMJ OA counts, cephalometric analyses, and histograms of gray values that are proportional to BMD. Mean, standard deviation (SD), and low and high gray values at the 5th and 95th percentiles (Low5 and High5) of the histograms were measured. Results: The female group had significantly higher values of TMJ OA counts, mean, and SD on the right mandibular condyle, High5 on both sides, and all gray value parameters for total (right + left) than the male group. Conclusion: Comprehensive analysis of BMD distribution in the mandibular condyle can provide useful information for prognosis of TMJ OA.

KW - Sex differences

KW - bone mineral density

KW - cephalogram

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IS - 2

ER -

Sex dependent differences of temporomandibular condylar bone mineral density distribution

Abstract

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Keywords

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