Evaluating Craniofacial Morphology Ratios as Predictors of Obstructive Sleep Apnea Severity in Non-Obese Adult Males

<b>Background</b>: This study aimed to examine the connection between craniofacial morphology, particularly the horizontal and vertical dimensions of the mandible, and the severity of obstructive sleep apnea (OSA) in non-obese adult males by utilizing a cephalometric analysis and introdu...

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Main Authors: Masasuke Shimatsu, Shigeto Kawashima, Mitsuyoshi Suzuki
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Dentistry Journal
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Online Access:https://www.mdpi.com/2304-6767/12/12/374
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author Masasuke Shimatsu
Shigeto Kawashima
Mitsuyoshi Suzuki
author_facet Masasuke Shimatsu
Shigeto Kawashima
Mitsuyoshi Suzuki
author_sort Masasuke Shimatsu
collection DOAJ
description <b>Background</b>: This study aimed to examine the connection between craniofacial morphology, particularly the horizontal and vertical dimensions of the mandible, and the severity of obstructive sleep apnea (OSA) in non-obese adult males by utilizing a cephalometric analysis and introducing a new skeletal ratio index. <b>Methods</b>: A cohort of 44 non-obese adult males with OSA, diagnosed via the apnea–hypopnea index (AHI) from polysomnographic recordings, was evaluated using a lateral cephalometric analysis. OSA severity was classified as mild (5 ≤ AHI < 15) in 19 patients, moderate (15 ≤ AHI < 30) in 15 patients, and severe (AHI ≥ 30) in 10 patients. The S-Go distance divided by the N-Me distance (S-Go/N-Me) was used as a vertical ratio of craniofacial morphology, the Go-Me distance divided by the S-N distance (Go-Me/S-N) was used as a horizontal ratio, and the results were compared between groups. Correlations between each ratio and craniofacial morphology based on the five factors from the Ricketts analysis were examined for each group. <b>Results</b>: A significant difference was found in the horizontal ratio Go-Me/S-N between the mild and moderate groups (<i>p</i> < 0.05) and the mild and severe groups (<i>p</i> < 0.05). However, no significant differences in Ricketts analysis factors were observed across OSA severity groups. Correlations between the Go-Me/S-N and Ricketts factors were identified in the mild and moderate groups but not in the severe group. The horizontal skeletal dimension Go-Me/S-N was strongly associated with OSA severity. <b>Conclusions</b>: The horizontal mandibular ratio Go-Me/S-N, independent of body shape, may offer a valuable morphological marker for differentiating OSA severity in non-obese males.
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spelling doaj-art-6ed47c95d7d644d09c9f6ef68fa8e6342024-12-27T14:20:18ZengMDPI AGDentistry Journal2304-67672024-11-01121237410.3390/dj12120374Evaluating Craniofacial Morphology Ratios as Predictors of Obstructive Sleep Apnea Severity in Non-Obese Adult MalesMasasuke Shimatsu0Shigeto Kawashima1Mitsuyoshi Suzuki2Isdorly Orthodontic Office, Tokyo 101-0047, JapanIsdorly Orthodontic Office, Tokyo 101-0047, JapanDepartment of Pediatrics, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan<b>Background</b>: This study aimed to examine the connection between craniofacial morphology, particularly the horizontal and vertical dimensions of the mandible, and the severity of obstructive sleep apnea (OSA) in non-obese adult males by utilizing a cephalometric analysis and introducing a new skeletal ratio index. <b>Methods</b>: A cohort of 44 non-obese adult males with OSA, diagnosed via the apnea–hypopnea index (AHI) from polysomnographic recordings, was evaluated using a lateral cephalometric analysis. OSA severity was classified as mild (5 ≤ AHI < 15) in 19 patients, moderate (15 ≤ AHI < 30) in 15 patients, and severe (AHI ≥ 30) in 10 patients. The S-Go distance divided by the N-Me distance (S-Go/N-Me) was used as a vertical ratio of craniofacial morphology, the Go-Me distance divided by the S-N distance (Go-Me/S-N) was used as a horizontal ratio, and the results were compared between groups. Correlations between each ratio and craniofacial morphology based on the five factors from the Ricketts analysis were examined for each group. <b>Results</b>: A significant difference was found in the horizontal ratio Go-Me/S-N between the mild and moderate groups (<i>p</i> < 0.05) and the mild and severe groups (<i>p</i> < 0.05). However, no significant differences in Ricketts analysis factors were observed across OSA severity groups. Correlations between the Go-Me/S-N and Ricketts factors were identified in the mild and moderate groups but not in the severe group. The horizontal skeletal dimension Go-Me/S-N was strongly associated with OSA severity. <b>Conclusions</b>: The horizontal mandibular ratio Go-Me/S-N, independent of body shape, may offer a valuable morphological marker for differentiating OSA severity in non-obese males.https://www.mdpi.com/2304-6767/12/12/374obstructive sleep apneacraniofacial morphologycephalometric analysisapnea–hypopnea index
spellingShingle Masasuke Shimatsu
Shigeto Kawashima
Mitsuyoshi Suzuki
Evaluating Craniofacial Morphology Ratios as Predictors of Obstructive Sleep Apnea Severity in Non-Obese Adult Males
Dentistry Journal
obstructive sleep apnea
craniofacial morphology
cephalometric analysis
apnea–hypopnea index
title Evaluating Craniofacial Morphology Ratios as Predictors of Obstructive Sleep Apnea Severity in Non-Obese Adult Males
title_full Evaluating Craniofacial Morphology Ratios as Predictors of Obstructive Sleep Apnea Severity in Non-Obese Adult Males
title_fullStr Evaluating Craniofacial Morphology Ratios as Predictors of Obstructive Sleep Apnea Severity in Non-Obese Adult Males
title_full_unstemmed Evaluating Craniofacial Morphology Ratios as Predictors of Obstructive Sleep Apnea Severity in Non-Obese Adult Males
title_short Evaluating Craniofacial Morphology Ratios as Predictors of Obstructive Sleep Apnea Severity in Non-Obese Adult Males
title_sort evaluating craniofacial morphology ratios as predictors of obstructive sleep apnea severity in non obese adult males
topic obstructive sleep apnea
craniofacial morphology
cephalometric analysis
apnea–hypopnea index
url https://www.mdpi.com/2304-6767/12/12/374
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