Document Detail

The effect of cervical spine manual therapy on normal mouth opening in asymptomatic subjects.
MedLine Citation:
PMID:  19674708     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVE: Temporomandibular disorders are a group of disorders affecting the temporomandibular joint and/or masticatory muscles. One of the signs associated with temporomandibular disorders is a reduction in mouth opening. During normal mouth opening, extension occurs at the cervical-cranial junction. The purpose of this investigation was to determine if manual therapy applied to the cervical-cranial junction would significantly improve mouth-opening capacity.
METHODS: One hundred one participants were randomly assigned to either an Active Release Technique (ART) group; high-velocity, low-amplitude manipulation (HVLA) group; or control group. A blinded investigator measured mouth opening using a TheraBite range of motion scale (TheraBite Corporation, West Chester, PA). Participants received ART to the suboccipitals or HVLA to the cervical spine at C1 or sat with an investigator for 3 minutes with no treatment. After the treatment session, mouth opening was remeasured. A repeated-measures analysis of variance was used to compare the group mean values. The a priori alpha level was .05.
RESULTS: The repeated-measures analysis of variance showed no significant difference between the ART, HVLA, and control groups' pretreatment and posttreatment measurements (F = 0.41, P > .05).
CONCLUSION: Manual therapy to the cervical spine did not significantly improve mouth opening in this asymptomatic population. Future trials using participants with restricted mouth-opening measures are warranted.
James W George; Jason Fennema; Adam Maddox; Martha Nessler; Clayton D Skaggs
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of chiropractic medicine     Volume:  6     ISSN:  1556-3707     ISO Abbreviation:  J Chiropr Med     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2009-08-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101163637     Medline TA:  J Chiropr Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  141-5     Citation Subset:  -    
Research Resident, Division of Research, Logan College of Chiropractic, St Louis, MO 63006.
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