Comparative Cephalometric Study Between Nasal and Predominantly Mouth Breathers

• Published in: Brazilian journal of otorhinolaryngology Vol. 72; no. 1; pp. 72 - 81
• Main Authors: Frasson, Jussara Marinho Dias, de Araújo Magnani, Maria Beatriz Borges, Nouer, Darcy Flávio, de Siqueira, Vânia Célia Vieira, Lunardi, Nádia
• Format: Journal Article
• Language: English
• Published: Brazil Elsevier Editora Ltda 01-01-2006; Elsevier
• Subjects: Cephalometry; Child; Dentofacial Morphology; Facial Bones - diagnostic imaging; Facial Bones - physiopathology; Female; Humans; Mouth Breathing - physiopathology; Nasorespiratory Function; Original; Orthodontics; Radiography; Respiratory Mechanics - physiology; Orthodontics; Dentofacial Morphology; Nasorespiratory Function
• ISSN: 1808-8694; 1808-8686
• DOI: 10.1016/S1808-8694(15)30037-9

to evaluate the possible correlation between the respiratory pattern in determining the craniofacial dimensions, using as baseline the Tweed-Merrifield's cephalometric analysis, added to angle SN-GoGn and to Y axis angle.
The selected sample to this study comprised 50 teleradiographies taken in lateral and natural positions of the head in young female patients at the age of 9 to 12 years, presenting mean age of 10 years and 5 months and Class 1 malocclusion. After diagnosis of respiratory pattern, the sample was divided into two groups: control group, 25 teleradiographies of nasal breathers in lateral and natural positions of the head; experimental group, 25 teleradiographies of predominantly mouth breathers in lateral and natural positions of the head.
The results were submitted to descriptive analysis (mean and standard deviation), test F and “t” Student test with significance level of 5%. There was no significant difference between the group with nasal breathing and the group with predominantly mouth breathing for any of the studied variables.