Comparative cephalometric study between nasal and predominantly mouth breathers.
OBJECTIVE
To evaluate the possible correlation between the respiratory pattern in determining the craniofacial dimensions, using as baseline the Tweed-Merrifields cephalometric analysis, added to angle SN-GoGn and to Y axis angle.


METHODS
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.


RESULTS
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.
Frasson
Jussara Marinho Dias
JM
Magnani
Maria Beatriz Borges de Araújo
MB
Nouer
Darcy Flávio
DF
de Siqueira
Vânia Célia Vieira
VC
Lunardi
Nádia
N
D002508:Cephalometry; D002648:Child; D005147:Facial Bones / Q000000981:diagnostic imaging* / Q000503:physiopathology; D005260:Female; D006801:Humans; D009058:Mouth Breathing / Q000503:physiopathology*; D011859:Radiography; D015656:Respiratory Mechanics / Q000502:physiology*