Position of Hyoid Bone Between Snorers with Obstructive Sleep Apnea and Snorers without Obstructive Sleep Apnea―A Cephalometric Study

Abstract Objective: To determine if there is an indicator on the lateral cephalometric radiograph that can be used for the differential diagnosis of severe obstruct sleep apnea syndrome and simple snoring in nonobese young male adults. Materials and Methods: The subjects were Taiwanese male patients with a complaint of snoring and/or sleep apnea, whose body mass index was less than 25 kg/m2 and who were younger than 40 years old. Forty-six patients with severe obstructive sleep apnea and 36 patients with simple snoring were selected and underwent lateral cephalometric radiography, from which 24 linear and 34 angular measurements were calculated. Differences between the two groups were studied, and a discriminatory analysis was performed. Results: Soft palate length, mandibular body length, tongue size, and distance from the hyoid bone to the mandibular plane were significantly larger in patients with severe obstructive sleep apnea syndrome. Of the original grouped cases, 76.5% were correctly classified using these five variables. The position of the hyoid bone in simple snorers was near the straight line from the third vertebra to the menton, whereas the position of the hyoid bone in severe obstruct sleep apnea syndrome patients was far below the line from the third vertebra to the menton. Conclusion: The position of the hyoid bone relative to the line from the third vertebra to the menton can be used as an indicator for a diagnosis of severe obstruct sleep apnea syndrome in nonobese young male Taiwanese adults.

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Long-term oral-appliance therapy in obstructive sleep apnea: A cephalometric study of craniofacial changes

Journal of Dentistry ◽

10.1016/j.jdent.2010.08.018 ◽

2010 ◽

Vol 38 (12) ◽

pp. 1010-1018 ◽

Cited By ~ 38

Author(s):

M.H.J. Doff ◽

A. Hoekema ◽

G.J. Pruim ◽

J.J.R. Huddleston Slater ◽

B. Stegenga

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Oral Appliance ◽

Oral Appliance Therapy ◽

Obstructive Sleep ◽

Cephalometric Study

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Morfología craneofacial en niños con apnea obstructiva del sueño / Craneofacial Morphology in Children with Obstructive Sleep Apnea

Universitas Odontologica ◽

10.11144/javeriana.uo36-76.mcna ◽

2017 ◽

Vol 36 (76) ◽

Author(s):

Andrea Del Carmen Caiza Rennella ◽

Gabriela Elizabeth Sotomayor Guamán ◽

Andrea Catalina Terreros Peralta ◽

Eneida López ◽

Ángela Suarez ◽

...

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Hyoid Bone ◽

Cranial Base ◽

Plane Angle ◽

Mandibular Plane ◽

Obstructive Sleep ◽

Sleep Breathing Disorder ◽

Craniofacial Features ◽

Cephalometric Measurements

ABSTRACT. Background: Obstructive sleep apnea (OSA) is a Sleep breathing disorder in children associated with facial and skeletal features. Purpose: to identify craniofacial features associated with OSA in Colombian children. Method: 43 children from 6-13 years old were selected for cephalometric measurements. All patients had been studied trough polysomnography. Cases were represented for 19 children with OSA and 24 children without OSA were grouped as controls, and lateral radiographs were taken. Cephalometric variables analyzed were: anteroposterior cranial length (SN), skeletal classification (ANB), effective mandibular and maxillary length (Co-Pg) (Co-A), sagittal position of maxillary and mandible (N┴A) (N┴Pg), mandibular plane angle (FH-PM), Ricketts growth axis angle (Ba-N/Ptm-Gn), upper and lower pharynx and hyoid Bone position (HPM). Results: 84.2 % of children with OSA showed a decrease in the length of cranial base compared with 58.3 % of children without OSA (p = 0.067; OR=3.81 95 % CI 0.87- 16.7). The superior bone hyoid position is associated with absence of OSA (OR = 0.26 95 % CI 0.87 to 16.7.) Conclusions: these results suggest trends to relation between length of cranial base and bone hyoid position e and the presence of OSA in children.

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Cephalometric Evaluation of Pharyngeal Airway Space Changes in the Combined Elliptical Window Genioglossus Advancement, Hyoid Bone Suspension and Uvulopalatopharyngoplasty for Obstructive Sleep Apnea

Journal of Oral and Maxillofacial Surgery ◽

10.1016/j.joms.2013.06.110 ◽

2013 ◽

Vol 71 (9) ◽

pp. e60

Author(s):

J.E. Cillo ◽

C. Kim ◽

D.J. Dattilo

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Hyoid Bone ◽

Pharyngeal Airway ◽

Obstructive Sleep

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The Dimension of Hyoid Bone Is Independently Associated with the Severity of Obstructive Sleep Apnea

PLoS ONE ◽

10.1371/journal.pone.0081590 ◽

2013 ◽

Vol 8 (12) ◽

pp. e81590 ◽

Cited By ~ 7

Author(s):

Jong Gyun Ha ◽

Hyun Jin Min ◽

Sang Hyeon Ahn ◽

Chang-Hoon Kim ◽

Joo-Heon Yoon ◽

...

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Hyoid Bone ◽

Obstructive Sleep

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An evaluation of two different mandibular advancement devices on craniofacial characteristics and upper airway dimensions of Chinese adult obstructive sleep apnea patients

The Angle Orthodontist ◽

10.2319/040314-245.1 ◽

2015 ◽

Vol 85 (6) ◽

pp. 962-968 ◽

Cited By ~ 8

Author(s):

Finn Geoghegan ◽

Anika Ahrens ◽

Colman McGrath ◽

Urban Hägg

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Hyoid Bone ◽

Upper Airway ◽

Mandibular Advancement ◽

Twin Block ◽

Chinese Adult ◽

Obstructive Sleep ◽

Mandibular Advancement Devices ◽

Airway Dimensions

ABSTRACT Objectives: To evaluate the effects of two different mandibular advancement devices (MADs) on craniofacial characteristics and upper airway dimensions of Chinese adult patients with obstructive sleep apnea (OSA). Materials and Methods: Forty-five patients with OSA were recruited as part of a prospective randomized crossover trial for treatment with two different MADs. Lateral cephalograms were taken, and the Epworth Sleepiness Scale and the Sleep Apnea Quality of Life Index were completed at baseline. Results: The Apnea-Hypoxia Index was highly significantly reduced with the monoblock (P < .001) and significantly reduced with the twin block (P < .01). The monoblock demonstrated a superior result than the twin block (P < .05). A significant reduction was found in the distances between the hyoid bone to retrognathia (monoblock, P < .01; twin block, P < .001) as well as the distance between the hyoid bone and mandibular plane angle (P < .001). Furthermore, soft palate length increased significantly (P < .05) with both MADs. However, the changes did not differ in favor of either MAD. Conclusion: Monoblock was the better MAD to improve OSA severity. No difference could be found in changes of subjective OSA indicators. Significant but similar cephalometric changes were observed, indicating both MADs alter the position of the surrounding musculature and improve upper airway patency. Therefore, the different design features of the MADs suggest an impact on some OSA indicators.

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Craniofacial, Craniocervical, and Pharyngeal Morphology in Bilateral Cleft Lip and Palate and Obstructive Sleep Apnea Patients

The Cleft Palate-Craniofacial Journal ◽

10.1597/05-175 ◽

2007 ◽

Vol 44 (1) ◽

pp. 1-7 ◽

Cited By ~ 31

Author(s):

Barbara C. M. Oosterkamp ◽

Hendrik J. Remmelink ◽

Gerard J. Pruim ◽

Aarnoud Hoekema ◽

Pieter U. Dijkstra

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Airway Obstruction ◽

Hyoid Bone ◽

Cleft Lip ◽

Cleft Lip And Palate ◽

Reference Group ◽

Obstructive Sleep ◽

Lateral Cephalograms ◽

Bilateral Cleft Lip

Objective: The aim of this study was to analyze craniofacial, craniocervical, and pharyngeal morphology in surgically treated bilateral cleft lip and palate (BCLP) men, untreated men with obstructive sleep apnea (OSA), and a reference group of men. Subjects and methods: Lateral cephalograms were obtained of 27 male BCLP patients (mean age 29.0 ± 8.3 years), 27 untreated male OSA patients (mean age 38.6 ± 5.3 years), and 27 male controls serving as a reference group (mean age 30.8 ± 9.2 years). Tracings were made, and 26 variables representing craniofacial, craniocervical, and pharyngeal dimensions were obtained using Viewbox 3.1.1.6. software. The groups were compared using a one-way analysis of variance. Results: Craniofacial, craniocervical, and pharyngeal morphology of BCLP and OSA patients was similar except for a significantly more retrusive maxilla in the BCLP group. Compared to the reference group, the BCLP and OSA groups had significantly larger craniocervical angulations, smaller depth of the oropharynx at the tip of the velum, and a more inferiorly positioned hyoid bone. Significantly larger vertical dimensions were found in the BCLP group compared to the reference group. Conclusions: Craniofacial, craniocervical, and pharyngeal morphology of BCLP and OSA patients demonstrate substantial similarities except for a significantly more retrusive maxilla in the BCLP group. It is suggested that airway obstruction and postural adaptation to the obstruction may possibly be related to the aberrant craniofacial, craniocervical, and pharyngeal morphology in OSA and in BCLP patients.

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