title: Relations between the results of complex clinical and neurophysiological examinations in patients with temporomandibular disorders symptoms.
abstract: OBJECTIVE
  Reinvestigation of clinical importance of surface electromyography recordings (sEMG) from the masticatory, neck and shoulder girdle muscles in patients with various clinically detected temporomandibular disorders (TMDs).
  
  
  METHODS
  Fifty women with myalgia diagnosis of Axis I DC/TMD and the same number of healthy female volunteers were studied clinically and neurophysiologically by means of sEMG.
  
  
  RESULTS
  Unilateral more than bilateral complex symptoms of TMDs were related to the non-neurogenic masticatory rather than neck and shoulder girdle muscles dysfunctions at rest. A strong negative correlation between masticatory muscles activity at rest and during maximal contraction was found (rs= -0.778), mainly in the masseter muscle.
  
  
  CONCLUSIONS
  sEMG is a suitable tool for prosthodontists because it provides objective results on the stomatognathic system muscles function. Pain and other temporomandibular symptoms detected mostly unilaterally significantly increase muscle tension of the masticatory muscles and diminish muscle motor units recruitment during maximal contraction. Effects may spread to the neck and shoulder girdle muscles.
authors.affiliation: a Department and Clinic of Prosthodontics , University of Medical Sciences , Poznań , Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Sójka
authors.affiliation: b Department of Pathophysiology of Locomotor Organs , University of Medical Sciences , Poznań , Poland.
authors.forename: Juliusz
authors.initials: J
authors.lastname: Huber
authors.affiliation: a Department and Clinic of Prosthodontics , University of Medical Sciences , Poznań , Poland.
authors.forename: Wiesław
authors.initials: W
authors.lastname: Hędzelek
authors.affiliation: b Department of Pathophysiology of Locomotor Organs , University of Medical Sciences , Poznań , Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Wiertel-Krawczuk
authors.affiliation: b Department of Pathophysiology of Locomotor Organs , University of Medical Sciences , Poznań , Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Szymankiewicz-Szukała
authors.affiliation: c Department of Bioinformatics and Computational Biology , University of Medical Sciences , Poznań , Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Seraszek-Jaros
authors.affiliation: b Department of Pathophysiology of Locomotor Organs , University of Medical Sciences , Poznań , Poland.
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Kulczyk
authors.affiliation: b Department of Pathophysiology of Locomotor Organs , University of Medical Sciences , Poznań , Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Wincek
authors.affiliation: d Department of Rheumatology and Rehabilitation , University of Medical Sciences , Poznań , Poland.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Sobieska
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D004576:Electromyography / Q000379:methods; D005260:Female; D006801:Humans; D008410:Masticatory Muscles / Q000503:physiopathology; D009334:Neck Muscles / Q000503:physiopathology; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis* / Q000503:physiopathology*
keywords: Clinical examination; surface electromyography; temporomandibular disorders