Objective
Both temporomandibular disorders (TMDs) and sleep bruxism (SB) are known to be destructive
to the masticatory system. However, the association between the 2 conditions is poorly
understood. The aim of our study was to assess the relationship between TMD and SB
through the signs and symptoms in 2 patient groups: TMD only and TMD with SB.
Study Design
A retrospective chart review was conducted from November 1, 2015, to April 1, 2018,
on patients with completed International Network for Orofacial Pain and Related Disorders
Methodology history questionnaires and Diagnostic Criteria for Temporomandibular Disorder
clinical examinations. Fifty-two patients, including 12 with TMD only and 40 with
TMD with SB, met the study criteria. Subjective descriptions and objective measurements
of patient symptoms were investigated. The χ2 test and Fisher's exact test were used for statistical analysis.
Results
The TMD with SB group exhibited increased oral behaviors compared with the TMD-only
group (P = .0004). The TMD with SB group also experienced more headaches compared with the
TMD-only group (P = .045).
Conclusions
Our results revealed that patients with jaw pain who self-report increased oral behaviors
and/or exhibit temporal headaches should be evaluated for sleep bruxism.
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Article info
Publication history
Published online: October 05, 2020
Accepted:
August 23,
2020
Received in revised form:
August 5,
2020
Received:
June 5,
2020
Identification
Copyright
Published by Elsevier Inc.
