Document Detail

Nasal obstruction causes a decrease in lip-closing force.
MedLine Citation:
PMID:  21446868     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To investigate the relationship between nasal obstruction and lip-closing force.
MATERIALS AND METHODS: Nasal airway resistance and lip-closing force measures were recorded for 54 Japanese females. The subjects were classified into normal and nasal obstruction groups according to nasal airway resistance values. Differences between the normal and nasal obstruction groups in lip-closing force were tested statistically. Correlation coefficients were calculated between the measures for the normal and nasal obstruction groups.
RESULTS: Lip-closing force for the nasal obstruction group was significantly less than for the normal group (P < .05). In the normal group, nasal airway resistance did not correlate with lip-closing force, while in the nasal obstruction group a significant negative correlation was found between nasal airway resistance and lip-closing force (P < .05).
CONCLUSIONS: Nasal obstruction is associated with a decrease in lip-closing force. When the severity of nasal obstruction reaches a certain level, the lip-closing force is weakened.
Kishio Sabashi; Kaei Washino; Issei Saitoh; Youichi Yamasaki; Atsushi Kawabata; Yousuke Mukai; Noriyuki Kitai
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Publication Detail:
Type:  Journal Article     Date:  2011-03-29
Journal Detail:
Title:  The Angle orthodontist     Volume:  81     ISSN:  1945-7103     ISO Abbreviation:  Angle Orthod     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-02     Completed Date:  2012-02-03     Revised Date:  2012-04-13    
Medline Journal Info:
Nlm Unique ID:  0370550     Medline TA:  Angle Orthod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  750-3     Citation Subset:  D; IM    
Private practice, Kani, Japan.
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MeSH Terms
Airway Resistance / physiology
Lip / physiopathology*
Middle Aged
Muscle Contraction / physiology
Nasal Obstruction / physiopathology*
Nose / physiopathology
Peak Expiratory Flow Rate / physiology
Young Adult
Comment In:
Angle Orthod. 2012 Mar;82(2):381   [PMID:  22409413 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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