Relations Between Hyoid-Related Cephalometric Measurements and Severity of Obstructive Sleep Apnea

Bilici, Suat; Ozgur, Yigit; Çelebi, Özlem Önerci; Yasak, Ahmet Görkem; Yardımcı, Aytül Hande

doi:10.1097/scs.0000000000004483

Cited by 22 publications

(22 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In fact, Pcrit and pharyngeal dilator muscle activity (which is equivalent to Eckert et al's "UA collapsibility" and "muscle responsiveness") are sleep-stage dependent (37). Predictability of H-MP for OSA severity are high (1,2) and is greater than those of minimal posterior airway space (PAS) measurements as has been previously reported (38). As reported by Wheatley et al (8) and this study, the average amount the hyoid bone elevation by AMP use is ∼5 mm.…”

Section: Discussionmentioning

confidence: 99%

“…Vertical positioning of the hyoid bone with respect to the inferior mandibular border obtained from lateral cephalograms appears to stratify OSA symptom severity provided that images are carefully collected under natural breathing-phase controlled conditions (1)(2)(3)(4). Despite recent advances in three-dimensional imaging techniques, a simple measure of hyoid bone positioned low with respect to the mandible is one of the most practical measurements separating OSA patients from asymptomatic controls (1,5).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Elevated Hyoid Bone Position in Response to Mandibular Advancing Appliance Predicts Effectiveness of the Appliance for Obstructive Sleep Apnea

Pae

Harper

2021

Front. Dent. Med

View full text Add to dashboard Cite

The objective was to determine whether hyoid bone elevation induced by an anterior mandibular positioning appliance (AMP) predicts the effectiveness of the AMP in patients with obstructive sleep apnea (OSA). Fifteen patients (12 males and 3 females) underwent polysomnographic recordings and lateral cephalograms before and after AMP use of at least 6 months. Measurements of sleep variables and upper airway morphology were compared between pre-AMP and with-AMP states. The AMP appliance reduced apnea-hypopnea indices (AHI) ~53% (33.77 ± 3.29 vs. 15.85 ± 3.78, P = 0.0013). Cephalograms of the oropharyngeal airway showed that the hyoid bone moved superiorly toward the inferior mandibular border (Δ H-MP) ~5 mm (23.4 ± 1.44 vs. 18.27 ± 1.86, P = 0.0377), with the AMP inserted in the oral cavity; no airway measurement other than hyoid bone position changed. No significant correlations emerged between AHI improvement (Δ AHI) and amounts of hyoid elevation (Δ H-MP) when all patients were pooled. However, when the samples were subcategorized, the correlation coefficients increased significantly (P < 0.01) in both subgroups. This outcome suggests the presence of two distinct types among the “Good-Responders” to AMP appliance use. Overall use of the AMP appliance is effective; however, the effectiveness of the appliance appears to depend on the mode of hyoid elevations, likely resulting from muscle responsiveness in patients with AMP use. The results suggest that Δ H-MP measurements may be a useful marker to segregate patients with tongue and hyoid muscles responsive to AMP from those not-so-responsive.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Elevated Hyoid Bone Position in Response to Mandibular Advancing Appliance Predicts Effectiveness of the Appliance for Obstructive Sleep Apnea

Pae

Harper

2021

Front. Dent. Med

View full text Add to dashboard Cite

show abstract

“…The MADs aim to maintain the mandible in an advanced position during sleep 19,20 (Figs 2A, 2B; Fig 3 and 4), promoting a transient increase of the oropharyngeal space during the use of the device and, consequently, reducing obstructions. 21 They act by pulling the soft tissues anteriorly, especially the genioglossus, geniushyoids, digastrics and milo-hyoids muscles.…”

Section: Mandibular Advancement Devices (Mad)mentioning

confidence: 99%

“…However, diagnosing and treating is of fundamental importance, and involves multiple specialties cooperating with each other or not. This, to a certain extent, reflects the multifactorial etiology of the disease, 4 which have anatomical aspects of the airways and jaws, 5 overweight, 6 posture during sleep and other factors interacting in the establishment of OSAS.…”

Section: Introductionmentioning

confidence: 99%

Obstructive Sleep Apnea in Adults

Brown

Chervin

2019

N Engl J Med

View full text Add to dashboard Cite

Introduction: Obstructive Sleep Apnea and Hypopnea Syndrome (OSAS) is a highly prevalent disease with serious consequences for the patients' lives. The treatment of the condition is mandatory for the improvement of the quality of life, as well as the life expectancy of the affected individuals. The most frequent treatments provided by dentistry are mandibular advancement devices (MAD) and orthognathic surgery with maxillomandibular advancement (MMA). This is possibly the only treatment option which offers high probability of cure. Objective: The present article provides a narrative review of OSAS from the perspective of 25 years of OSAS treatment clinical experience.Conclusion: MADs are a solid treatment option for primary snoring and mild or moderate OSAS. Patients with severe apnea who are non-adherent to CPAP may also be treated with MADs. Maxillomandibular advancement surgery is a safe and very effective treatment option to OSAS.

show abstract

“…As an indispensable tool for modern orthodontics, orthognathic treatment, and maxillofacial surgery [1], the cephalometric analysis provides valuable information about patients' bony, dental, and soft tissue structures. Based on the cephalometric analysis of patients, dentists can provide with diagnosis and treatment of obstructive sleep apnea [2], assessment of mandible/lower jaw [3] and soft facial tissue [4], and so on.…”

Section: Introductionmentioning

confidence: 99%

Locating Anatomical Landmarks on 2D Lateral Cephalograms Through Adversarial Encoder-Decoder Networks

et al. 2019

View full text Add to dashboard Cite

Locating anatomical landmarks in a cephalometric X-ray image is a crucial step in cephalometric analysis. Manual landmark localization suffers from inter-and intra-observer variability, which makes developing automated localization methods urgent in clinics. Most of the existing techniques follow the routine thoughts which estimate numerical values of displacements or coordinates for the target landmarks. Additionally, there are no reported applications of generative adversarial networks (GAN) in cephalometric landmark localization. Motivated by these facts, we propose a new automated cephalometric landmark localization method under the framework of GAN. The principle behind our approach is fundamentally different from the conventional ones. It trained an adversarial network under the framework of GAN to learn the mapping from features to the distance map of a specific target landmark. Namely, the output of the adversarial network in this paper is image data, instead of displacements or coordinates as the conventional approaches. Based on the trained networks, we can predict the distance maps of all target landmarks in a new cephalometric image. Subsequently, the target landmarks are detected from the predicted distance maps by an approach similar to regression voting. Experimental results validate the good performance of our method in localization of cephalometric landmarks in dental X-ray images.INDEX TERMS Adversarial encoder-decoder networks, localization of anatomical landmarks, cephalometric analysis, prediction of distance maps.

show abstract

Relations Between Hyoid-Related Cephalometric Measurements and Severity of Obstructive Sleep Apnea

Abstract: The mentum-hyoid distance of patients with severe OSA was longer compared to the other OSA groups. These patients might have more benefit from the surgeries that have an impact on the position of the hyoid bone compared to other patients with OSA.

Cited by 22 publications

References 28 publications

Elevated Hyoid Bone Position in Response to Mandibular Advancing Appliance Predicts Effectiveness of the Appliance for Obstructive Sleep Apnea

Elevated Hyoid Bone Position in Response to Mandibular Advancing Appliance Predicts Effectiveness of the Appliance for Obstructive Sleep Apnea

Obstructive Sleep Apnea in Adults

Locating Anatomical Landmarks on 2D Lateral Cephalograms Through Adversarial Encoder-Decoder Networks

Contact Info

Product

Resources

About