title: The clinical usefulness of surface electromyography in the diagnosis and treatment of temporomandibular disorders.
abstract: BACKGROUND
  This article presents a comprehensive review of the recent literature regarding the scientific support for the use of surface electromyography (SEMG) in diagnosing and treating temporomandibular disorders (TMDs).
  
  
  METHODS
  The authors conducted a Medline search involving human studies using the key words "surface electromyography or electromyography" and "masticatory muscles or temporomandibular disorders or craniomandibular disorders." They also reviewed relevant articles regarding the clinical usefulness of SEMG based on reliability, validity, sensitivity and specificity, as well as additional references included in some of the articles.
  
  
  RESULTS
  The clinical use of SEMG in the diagnosis and treatment of TMD is of limited value when one considers reliability, validity, sensitivity and specificity as measurement standards. SEMG does not appear to contribute any additional information beyond what can be obtained from the patient history, clinical examination and, if needed, appropriate imaging.
  
  
  CONCLUSIONS
  Clinically, the determination of the presence or absence of TMD does not appear to be enhanced by the use of SEMG. However, the modality may be useful in a meticulously controlled research setting.
  
  
  CONCLUSIONS
  SEMG has limited value in the detection or management of TMD and in some instances may lead to unnecessary dental therapy as a solution for those disorders.
authors.affiliation: University of Illinois at Chicago, College of Dentistry, Department of Oral Medicine and Diagnostic Sciences, Chicago, IL 60612, USA. gklasser@uic.edu
authors.forename: Gary D
authors.initials: GD
authors.lastname: Klasser
authors.forename: Jeffrey P
authors.initials: JP
authors.lastname: Okeson
mesh_terms: D017271:Craniomandibular Disorders / Q000175:diagnosis; D004566:Electrodes; D004576:Electromyography / Q000295:instrumentation / Q000706:statistics & numerical data; D006801:Humans; D008410:Masticatory Muscles / Q000503:physiopathology; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis*