Document Detail

Malocclusion associated with abnormal posture.
MedLine Citation:
PMID:  12956088     Owner:  NLM     Status:  MEDLINE    
Growth and development of maxillofacial morphology and oral function are closely interrelated. Oral function is comprised of articulation, swallowing, and chewing. Malocclusion may be caused by abnormal functions such as mouth breathing, tongue thrust swallowing, and unilateral chewing and by abnormal postures of oral circumferential muscles such as forward tongue thrust, tongue biting, and low tongue at rest. Forces from unintentional and habitual behaviors constantly acting on the maxillofacial and alveolar regions can cause the bony structures to generally deform, resulting in jaw deformity and malocclusion. Oral function also plays a vital role in maintaining body posture. In this study, clinical observations of oral postures examined maxillary protrusion and open bite, anterior crossbite and facial asymmetry. The unstable forces induced by abnormal posture were correlated with the varieties of malocclusion. Morphology, function, and posture were shown to be closely interrelated and to influence each other.
Hideharu Yamaguchi; Kenji Sueishi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Bulletin of Tokyo Dental College     Volume:  44     ISSN:  0040-8891     ISO Abbreviation:  Bull. Tokyo Dent. Coll.     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-09-05     Completed Date:  2003-10-15     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7505414     Medline TA:  Bull Tokyo Dent Coll     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  43-54     Citation Subset:  D    
Department of Orthodontics, Tokyo Dental College, 1-2-2 Masago, Mihama-ku, Chiba 261-8502, Japan.
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MeSH Terms
Child, Preschool
Facial Asymmetry / etiology*
Fingersucking / adverse effects
Malocclusion / etiology*
Mouth Breathing / complications
Open Bite / etiology
Orthodontic Appliances
Orthodontics, Corrective / instrumentation
Pacifiers / adverse effects
Tongue Habits / adverse effects

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

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