Cephalometric Comparison of Position of the Hyoid Bone in Class I and Class II Patients

  title={Cephalometric Comparison of Position of the Hyoid Bone in Class I and Class II Patients},
  author={Sanaz Soheilifar and Mohammad Momeni},
Background: According to the close proximity of hyoid bone with dentofacial structures and its muscular attachments, a probable relationship between it and different types of skeletal patterns is suspected. Objectives: The aim of this study is compare the position of hyoid bone in skeletal class I and class II patients. Methods: In this study 50 cephalograms were divided into two groups, skeletal class I (1 ≤ ANB ≤ 4) and skeletal class II (ANB > 4), with 24 and 26 patients in each group… Expand
2 Citations
Comparison of Hyoid Bone Position in Skeletal Class I Subjects with Varying Growth Patterns: A Cephalometric Study
The anteroposterior position of the hyoid bone does not change with different growth patterns in skeletal class I subjects, and the G-C3Chor distance was found to be statistically significant when the three groups were compared. Expand
Effect of Craniofacial Growth Pattern on Head Posture
Head posture is similar among subgroups of different malocclusion types separated by vertical growth pattern separated by horizontal growth pattern, according to craniofacial growth pattern. Expand


Relationship of the hyoid bone and posterior surface of the tongue for class II division 1 orthodontic patients
It appears that an adaptation of the tegumentary tissue exists around the hyoid bone in individuals with Angle Class II Division 1 malocclusion, in both sagittal and vertical planes, when comparing all the facial types. Expand
Cephalometric Investigation of First Cervical Vertebrae Morphology and Hyoid Position in Young Adults with Different Sagittal Skeletal Patterns
The aim of this retrospective study was to examine hyoid bone position and C1 (atlas) morphology in males and females and analyze these parameters with respect to different sagittal skeletal patternsExpand
Evaluation of hyoid bone position and its correlation with pharyngeal airway space in different types of skeletal malocclusion
A positive correlation was found between the lower airway and horizontal distance from the hyoid bone to the retrognathion in class I skeletal pattern with average growth pattern. Expand
The hyoid bone position in adult individuals with open bite and normal occlusion.
The findings strongly suggest that hyoid bone moves in close conjunction with the pharynx, cervical spine, and mandibular plane in patients with entirely different skeletal patterns. Expand
Evaluation of the position of the hyoid bone in relation to vertical facial development.
The hyoid bone location in the hyperdivergent group was in a more of a posterior and superior position, however, it had more of an posterior placement with the increase of Pg-H distance. Expand
The hyoid triangle.
Standard values are given for the dimensions of the hyoids triangle which indicate that the hyoid bone is less variable in position than previous research has suggested. Expand
Relationship of the hyoid bone and posterior surface of the tongue in prognathism and micrognathia.
This work has found no association between the posterior surface of the tongue and hyoid position in Angle's Class III, which could be an adaptive feature of the genioglossus in response to hyoid localization to serve a compensatory role to prevent respiratory impairment in micrognathia at risk of apnoea. Expand
The hyoid bone position in mouth breathers and tongue-thrusters.
  • R. Bibby
  • Medicine
  • American journal of orthodontics
  • 1984
Results show that the hyoid bone has a stable position and is independent of any posture alterations due to tongue-thrusting or mouth breathing. Expand
The biomechanical effects of a sagittal split ramus osteotomy on the relationship of the mandible, the hyoid bone, and the cervical spine.
The different pattern of movement of C2 and C3 in Mandibular advancement and mandibular set-back confirmed the conclusion that the initiating mechanisms, may be found in the cervicothoracic transition and the upper cervical region, respectively. Expand
Changes in Pharyngeal Airway Space and Hyoid Bone Positions After Body Ostectomies and Sagittal Split Ramus Osteotomies
A decrease has been observed in the pharyngeal airway space (PAS) and the anteroposterior dimension of the PAS detected in all patients in the long-term period and the results revealed a decrease in PAS area after BO, but the decrease was less than that in cases having SSRO. Expand