Three-dimensional analysis of pharyngeal airway morphology in Japanese female adolescents. Issue 2 (June 2017)

• Record Type: Journal Article
• Authors: Yanagita, Natsumi; Terajima, Masahiko; Kanomi, Ryuzo; Takahashi, Ichiro
• Is Part Of: Orthodontic waves. Volume 76:Issue 2(2017:Jun.)
• Page Start: 89
• Page End: 96
• Publication Date: 2017-06
• Subjects: 3D CBCT -- Pharyngeal airway morphology -- Female Japanese adolescents -- CVM; Orthodontics -- Periodicals; Orthodontics -- Periodicals; Orthodontie -- Périodiques; Orthodontie; Périodique électronique (Descripteur de forme); Ressource Internet (Descripteur de forme); 617.643
• DOI: 10.1016/j.odw.2017.01.004
• Languages: English
• ISSNs: 1344-0241

Abstract

Abstract: Purpose: This cross-sectional study evaluated the three-dimensional craniofacial skeletal and pharyngeal airway morphology and the changes associated with skeletal maturation in Japanese female adolescents. Materials and methods: The subjects were examined by cone-beam computed tomography and divided into two groups according to the stage of cervical vertebral maturation (adolescent group: 34 subjects, cervical stages 2 and 3, mean age 11.15 ± 0.86 years; and late-adolescent group: 27 subjects, cervical stages 4 and 5, mean age 14.23 ± 1.13 years). The size of the craniofacial skeleton and pharyngeal airway in each group were measured. Statistical differences between the two groups were determined using Student's t -test. Pearson's correlation coefficient was used to determine the relationships between the skeletal and pharyngeal variables in each group. Results: The skeletal and pharyngeal airway parameters were significantly larger in the late-adolescent group than in the adolescent group. In the adolescent group, the anteroposterior position of the maxilla and mandible was significantly positively correlated with the volume of the nasopharyngeal airway ( P < 0.05). The mandibular size was significantly positively correlated with the oropharyngeal length and volume ( P < 0.01). In the late-adolescent group, we did not find any correlations between skeletal size or position and the volume of the pharyngeal airway during the adolescent period. Conclusions: The nature of the relationship between skeletal morphology and pharyngeal airway volume seems to change from adolescence to late adolescence.