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Swallowing Changes Related to Chronic Temporomandibular Disorders

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Committee on Temporomandibular Disorders (TMD): From Research Discoveries to Clinical Treatment

Public Workshop Committee on Temporomandibular Disorders (TMD): From Research Discoveries to Clinical Treatment

National Academy of Medicine Study on Temporomandibular Disorders: From Research Discoveries to Clinical Treatment

An ad hoc committee, under the auspices of the National Academies of Sciences, Engineering, and Medicine's Health and Medicine Division, has been convened to study temporomandibular disorders (TMD) in a project entitled From Research Discoveries to Clinical Treatment.

Prevalence of TMD in Sjӧgren Syndrome Patients

  • May 30, 2018

Abstract

Aims: Sjӧgren Syndrome is a disorder involving oral tissues, with xerostomia, dysgeusia, dysphagia, tooth decay, gingivitis, angular cheilitis and glossitis. Temporomandibular disorders are a generic term referred to clinical conditions involving the jaw muscles and temporomandibular joint. The aim of this study was to investigate the prevalence of oral manifestations and temporomandibular disorders (TMD) in Sjӧgren Syndrome (SS) patients compared with healthy people.

Methods: The study group included 72 SS patients (2 men, 70 women) diagnosed according to the American-European Consensus Group (AECG) Criteria. A randomly selected group of 72 patients, matched by sex and age, served as control group. The examination for TMD signs and symptoms was based on the standardized Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) through a questionnaire and clinical examination.

Results: SS patients complained more frequently (95.8%) of oral symptoms (xerostomia, dysgeusia, dysphagia) than controls (22.2%) (χ2= 80.66 p< 0.001). TMD symptoms (muscle pain on chewing, difficulty in mouth opening, arthralgia, headaches, tinnitus) were complained by 91.7% of SS patients and by 84.7% of controls (χ2= 1,667 p= 0,196). At the clinical examination, 91.7% of SS had at least one oral sign respect to 75% of controls. The salivary flow measurements showed high statistical significance between the two groups (Unpaired test, p< 0,0001). Myofascial pain (caused by muscular contracture) was significantly higher in the study group than in the control one (p≤0,05). Furthermore 18.05% of SS patients showed deflection versus 5.5% of controls (χ2=5,402 p=0,020).

Conclusions: Sjӧgren's Syndrome seems to play a role in temporomandibular joint disorders. 

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Source: Crincoli V, Di Comite M, Guerrieri M, et al. Orofacial Manifestations and Temporomandibular Disorders of Sjogren Syndrome: An Observational Study. International Journal of Medical Sciences. 2018;15(5):475-483. doi:10.7150/ijms.23044.

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