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Do myofascial trigger points in masseter muscles affect the symptoms of disc displacement with reduction? A cross-sectional study

Revista da Associacao Medica Brasileira (1992), 2023, Vol.69 (12), p.e20230622 [Peer Reviewed Journal]

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. ;ISSN: 0104-4230 ;ISSN: 1806-9282 ;EISSN: 1806-9282 ;DOI: 10.1590/1806-9282.20230622 ;PMID: 37971122

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  • Title:
    Do myofascial trigger points in masseter muscles affect the symptoms of disc displacement with reduction? A cross-sectional study
  • Author: Korkmaz, Merve Damla ; Karacay, Basak Cigdem
  • Subjects: Bruxism ; Chronic Pain ; Cross-Sectional Studies ; Humans ; Masseter Muscle ; MEDICINE, GENERAL & INTERNAL ; Myofascial Pain Syndromes - diagnosis ; Prospective Studies ; Trigger Points
  • Is Part Of: Revista da Associacao Medica Brasileira (1992), 2023, Vol.69 (12), p.e20230622
  • Description: The aim of this study was to demonstrate the effect of myofascial pain with referral from the trigger points in the masseter muscles on the clinical symptoms and functional limitations of the temporomandibular joint in participants with disc displacement with reduction. This prospective, cross-sectional study recruited participants aged 18-45 years with disc displacement with reduction with/without myofascial pain with referral in the masseter muscles based on the inclusion criteria. Maximum mouth opening and the presence of probable awake bruxism were assessed. The "Graded Chronic Pain Scale version 2.0" and "Jaw Function Limitation Scale-8" were used to evaluate Diagnostic Criteria for Temporomandibular Disorders Axis II. Pain levels were measured using the Visual Analog Scale. A comparison between the disc displacement with reduction and disc displacement with reduction+myofascial pain with referral groups revealed statistically significant differences in Visual Analog Scale (p<0.001), the presence of awake bruxism (p=0.038), and Graded Chronic Pain Scale version 2.0 (p=0.010). However, no statistically significant difference was observed between the two groups concerning maximum mouth opening and Jaw Function Limitation Scale-8. Participants with both disc displacement with reduction and myofascial pain with referral in the masseter muscle exhibited higher pain intensity, a higher prevalence of awake bruxism, and increased pain-related disability compared to those with disc displacement with reduction alone.
  • Publisher: Brazil: Associação Médica Brasileira
  • Language: English;Portuguese
  • Identifier: ISSN: 0104-4230
    ISSN: 1806-9282
    EISSN: 1806-9282
    DOI: 10.1590/1806-9282.20230622
    PMID: 37971122
  • Source: Open Access: PubMed Central
    SciELO
    MEDLINE
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