The prevalence of comorbid symptoms of central sensitization syndrome among three different groups of temporomandibular disorder patients

Kara M. Lorduy, Angela Liegey-Dougall, Robbie Haggard, Celeste N. Sanders, Robert J. Gatchel

Research output: Contribution to journalArticle

31 Scopus citations


Aims: Symptoms of central sensitization syndrome (CSS) were evaluated among three different groups of temporomandibular disorder (TMD) patients. Additionally, TMD group differences in pain and pain-related disability were assessed, as well as emotional distress. Methods: Participants were 250 patients with symptoms of acute TMD, recruited from dental clinics within a major metropolitan area. Sequential regressions and multivariate analyses of covariance were conducted in order to make group comparisons. Results: Those with a TMD Muscle Disorder (ie, myofacial TMD [m-TMD]) and those with more than one TMD diagnosis had the most symptoms of CSS and higher reports of pain and pain-related disability. Moreover, emotional distress accounted for a substantial amount of the variance for physical symptoms and mediated all TMD comparisons. Conclusions: Myofacial TMD is characterized by a high degree of comorbidity of symptoms of CSS and associated emotional distress.

Original languageEnglish
Pages (from-to)604-613
Number of pages10
JournalPain Practice
Issue number8
StatePublished - Nov 2013



  • Central sensitization syndrome
  • Emotional distress
  • Myofacial TMD
  • Temporomandibular disorder

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