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. 2017 Sep;87(5):688-695.
doi: 10.2319/022217-133.1. Epub 2017 Jul 7.

Correlation between the position of hyoid bone and subregions of the pharyngeal airway space in lateral cephalometry and cone beam computed tomography

Eliana Dantas da Costa, Gina Delia Roque-Torres, Danieli Moura Brasil, Frab Noberto Bóscolo, Solange Maria de Almeida, Glaucia Maria Bovi Ambrosano

Correlation between the position of hyoid bone and subregions of the pharyngeal airway space in lateral cephalometry and cone beam computed tomography

Eliana Dantas da Costa et al. Angle Orthod. 2017 Sep.

Abstract

Objective: To correlate the pharyngeal airway subregions with the positioning of the hyoid bone.

Material and methods: The study examined 107 lateral cephalometric (LC) and cone beam computed tomography (CBCT) images. Linear and volumetric measurements of the pharyngeal subregions were made and correlated to linear measurements using hyoid triangle analysis on images of LC and multiplanar (MPR) and three-dimensional (3D) reconstructions of CBCT.

Results: There was significant correlation between linear measurements of the pharyngeal subregions and hyoid bone position in LC images and in MPR and 3D reconstructions of the CBCT. Correlations were more frequent in the oropharynx and hypopharynx, especially for LC images. No correlations were observed between LC images or CBCT reconstructions and the volumetric measurements of the pharyngeal subregions and the position of the hyoid bone.

Conclusion: The hyoid bone position showed more correlations with oropharynx and hypopharynx airway measurements. The hyoid triangle method was not applicable to 3D images, since it showed a smaller number of measures correlated to the hyoid bone position.

Keywords: Cone beam computed tomography; Hyoid bone; Pharynx; Radiography.

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Figures

Figure 1.
Figure 1.
Points: (A) Dental (B) S. (C) N. (D) 3D reference sagittal plane.
Figure 2.
Figure 2.
1= Nasopharynx, 2= oropharynx, and 3= hypopharynx. (A) LC. (B) MPR. (C) 3D reconstruction of CBCT. (D) 3D segmentation for determination of volume.
Figure 3.
Figure 3.
Hyoid triangle: (1) C3-RGn, (2) C3-H, (3) H-RGn, (4) H-H', (5) HP Angle, (6) AA-PNS, (7) dhoriz-H, (8) H, (9) HP-BaN, (10) HPPP. (A) LC. (B) MPR. Featured image: maximum intensity projection (MIP) for demarcation of the HP and dvert-H angles. (C) 3D reconstruction of CBCT.
See this image and copyright information in PMC

References

    1. Sheng CM, Lin LH, Su Y, Tsai HH. Developmental changes in pharyngeal airway depth and hyoid bone position from childhood to young adulthood. Angle Orthod. 2009;79:484–490. - PubMed
    1. Gonçales ES, Rocha JF, Gonçales AG, Yaedú RY, Sant'Ana E. Computerized cephalometric study of the pharyngeal airway space in patients submitted to orthognathic surgery. J Maxillofac Oral Surg. 2014;13:253–258. - PMC - PubMed
    1. Jiang YY. Correlation between hyoid bone position and airway dimensions in Chinese adolescents by cone beam computed tomography analysis. Int J Oral Maxillofac Surg. 2016;45:914–921. - PubMed
    1. McNamara JA. Influence of respiratory pattern on craniofacial growth. Angle Orthod. 1981;51:269–300. - PubMed
    1. Lenza MG, Lenza MM, Dalstra M, Melsen B, Cattaneo PM. An analysis of different approaches to the assessment of upper airway morphology: a CBCT study. Orthod Craniofac Res. 2010;13:96–105. - PubMed

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