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Stomatologija 2019; 21 (4): 99-106 220 KB

The impact of the hyoid bone position on the pharyngeal airway characteristics among different facial skeletal patterns

Eglė Šadzevičiūtė*, Julija Nazimova*, Giedrė Trakinienė*

Summary

Objective. To identify the impact of the hyoid bone position on the pharyngeal airway characteristics among different facial skeletal patterns.

Materials and methods. The orthodontic patients from the patients’ data base of the Lithuanian University of Health Sciences base were examined. On each cephalogram 5 linear, 3 angular skeletal and 6 linear soft tissue landmarks were traced and measured using AudaxCeph program. The radiographs were divided into the three groups according to the ANB angle: control group, with skeletal class I (ANB angle 1-5°), study group 1 with skeletal Class II (ANB angle >5°), study group 2 with skeletal Class III (ANB angle <1°). All measurements and relations between dento-facial complex anatomical structures were statistically evaluated using IBM SPSS Statistics software.

Results. 261 patients (156 females, 105 males, aged between 7 and 35 years) were selected. The skeletal class II group consisted of 114, class III group – 59 and class I – 88 patients‘ cephalograms. Hyoid bone distance both to cervical third vertebrae and mandibular symphysis, maxilla and mandibular length, inferior airways space significantly differed between the Angle classes. Inferior airway space had a significantly positive correlation with all measurements, associated with hyoid bone.

Conclusion. Inferior airway space was significantly narrower and the hyoid bone localization was in more posterior superior position in the skeletal class II in comparison with other both groups. Decrease of the hyoid bone distance to the third cervical vertebrae, mandibular symphysis and mandibular plane led to the narrower inferior airways space.

Key words: hyoid bone, pharyngeal airway, skeletal pattern, obstructive sleep apnea.

Received: 19 04 2017

Accepted for publishing: 24 12 2019

*Department of Orthodontics, Lithuanian University of Health Sciences, Kaunas, Lithuania

Address correspondence to Eglė Šadzevičiūtė, Department of Orthodontics, Lithuanian University of Health Sciences, J. Lukšos-Daumanto g. 6, LT-3009 Kaunas, Lithuania.

E-mail address: egle.sadz@gmail.com



	Baltic Dental and Maxillofacial Journal

December, 2019, Vol. 21, No. 4 CONTENTS SCIENTIFIC ARTICLES The impact of the hyoid bone position on the pharyngeal airway characteristics among different facial skeletal patterns Eglė Šadzevičiūtė, Julija Nazimova, Giedrė Trakinienė 99-106 Influence of preterm birth for child's oral health status Sandra Žemgulytė, Ingrida Vasiliauskienė, Eglė Slabšinskienė, Kristina Saldūnaitė, Julija Narbutaitė 107-112 An in vitro evaluation of microleakage of class V composite restorations using universal adhesive under different level of cavity moisture conditions Alma Pranckevičienė, Rūta Narbutaitė, Jolanta Siudikienė, Robertas Damaševičius, Rytis Maskeliūnas 113-118 Oral health of 12 and 15 year-old adolescents living in the social care homes in south of Lithuania Austeja Rimaviciute, Modesta Domeikaite, Laura Mazecaite-Vaitilaviciene, Ruta Bendinskaite, Alina Puriene 119-124 CASE REPORT The use of a porcine-derived collagen matrix for vertical soft tissue augmentation. A case report Algirdas Puišys, Andrius Jonaitis, Eglė Vindašiūtė, Saulius Žukauskas, Tomas Linkevičius 125-128 © 2019 Stomatologija		Stomatologija 2019; 21 (4): 99-106 220 KB The impact of the hyoid bone position on the pharyngeal airway characteristics among different facial skeletal patterns Eglė Šadzevičiūtė, Julija Nazimova, Giedrė Trakinienė* Summary Objective. To identify the impact of the hyoid bone position on the pharyngeal airway characteristics among different facial skeletal patterns. Materials and methods. The orthodontic patients from the patients’ data base of the Lithuanian University of Health Sciences base were examined. On each cephalogram 5 linear, 3 angular skeletal and 6 linear soft tissue landmarks were traced and measured using AudaxCeph program. The radiographs were divided into the three groups according to the ANB angle: control group, with skeletal class I (ANB angle 1-5°), study group 1 with skeletal Class II (ANB angle >5°), study group 2 with skeletal Class III (ANB angle <1°). All measurements and relations between dento-facial complex anatomical structures were statistically evaluated using IBM SPSS Statistics software. Results. 261 patients (156 females, 105 males, aged between 7 and 35 years) were selected. The skeletal class II group consisted of 114, class III group – 59 and class I – 88 patients‘ cephalograms. Hyoid bone distance both to cervical third vertebrae and mandibular symphysis, maxilla and mandibular length, inferior airways space significantly differed between the Angle classes. Inferior airway space had a significantly positive correlation with all measurements, associated with hyoid bone. Conclusion. Inferior airway space was significantly narrower and the hyoid bone localization was in more posterior superior position in the skeletal class II in comparison with other both groups. Decrease of the hyoid bone distance to the third cervical vertebrae, mandibular symphysis and mandibular plane led to the narrower inferior airways space. Key words: hyoid bone, pharyngeal airway, skeletal pattern, obstructive sleep apnea. Received: 19 04 2017 Accepted for publishing: 24 12 2019 *Department of Orthodontics, Lithuanian University of Health Sciences, Kaunas, Lithuania Address correspondence to Eglė Šadzevičiūtė, Department of Orthodontics, Lithuanian University of Health Sciences, J. Lukšos-Daumanto g. 6, LT-3009 Kaunas, Lithuania. E-mail address: egle.sadz@gmail.com