Prevalence of temporomandibular disorders in people with multiple sclerosis: A systematic review and meta-analysis.

OBJECTIVE

To explore the prevalence of temporomandibular disorders (TMD) in patients affected by multiple sclerosis (MS) and whether there is a correlation between TMD prevalence and MS severity.

METHODS

PubMed, Web of Science, and Lilacs were systematically searched until July 30 2022, to identify studies presenting patients affected by MS and whether there is a correlation between TMD prevalence and MS severity.

RESULTS

Out of 292 papers, 8 studies were included with 1312 study participants. Among the 8 studies, 5 had a control group; 5 used the RDC/TMD criteria, 1 used the NOT-S instrument, and 2 did not define a standardized method to define TMD symptoms. Meta-analysis revealed that the MS group had a higher rate than the control group, showing an association between MS and TMD (RR 2.10; 95% CI: 1.21-3.65).

CONCLUSION

These findings show an association between TMD and MS.

ABBREVIATIONS: Australian Longitudinal Study of MS (AMSLS); Computed Tomography (CT); Community Periodontal Index of Treatment Needs (CPITN); Central Nervous System (CNS); Decayed, Missing, and Filled (DMF); Decayed, Missing, or Filled Teeth Index (DMFT); Expanded Disability Status Scale (EDSS); European Academy of Craniomandibular Disorders (EACD); Healthy Controls (HC); International Prospective Register of Systematic Reviews (PROSPERO); Multiple Sclerosis (MS); Nordic Orofacial Test-Screening (NOT-S); Participants, model of Intervention, Comparison and Outcome (PICO); Preferred Reporting Items for Systematic Reviews (PRISMA); Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD); Temporomandibular Joint (TMJ); Temporomandibular Disorders (TMD); World Health Organization (WHO).