Associations between temporomandibular disorders, pain, jaw and masticatory function in dentofacial deformity patients: A cross-sectional study

Sivaranjani Madhan*, Gustavo G. Nascimento, Janne Ingerslev, Marie Cornelis, Else Marie Pinholt, Paolo M. Cattaneo, Peter Svensson

*Kontaktforfatter

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Abstract

Background and objective: Patients with dentofacial deformity often present with impaired masticatory function, orofacial pain and temporomandibular disorders (TMD). This study investigates the relationship between TMD, pain, jaw and masticatory function at different stages of orthognathic surgical (OS) treatment. Methods: A total of 120 OS patients were prospectively recruited and grouped as pre-orthodontic (group 1), pre-surgery (group 2), 4-month post-surgery (group 3), 24-month post-surgery (group 4), in addition to 30 controls (group 0). Outcomes were assessed using: Jaw Function Limitation Scale (JFLS), McGill pain questionnaire, DC/TMD instrument, voluntary maximum bite force (MVBF), and masticatory efficiency (ME) using two-coloured chewing gum. Data were analysed using structural equation modelling. Results: The prevalence of non-painful TMD did not differ between groups (p =.827). However, the prevalence of painful TMD differed between groups (p =.001). Among the painful TMDs, the highest prevalence was observed for masseter myalgia in group 2 (p =.031), and importantly group 4 did not differ from group 0 (p =.948). The MPQ score was significantly higher in group 1 (p =.001) compared to group 0, and the JFLS score was significantly higher in groups 1, 2 and 3 compared to group 0. Notably, MPQ (p =.756) and JFLS (p =.572) scores in group 4 were not different from group 0. However, MVBF (p =.996) and ME (p =.991) did not differ between groups 1 and 4. The association of self-reported pain and jaw function with the masticatory function was observed in OS patients. Conclusion: OS was not associated with a negative impact on TMD. Jaw function and pain levels were similar to controls at the 24-month follow-up. The masticatory function was further affected by the surgery and seems to require a longer recovery time. Moreover, it was confirmed that pain and TMD were associated with limitations in jaw function and impacts on masticatory function.

OriginalsprogEngelsk
TidsskriftJournal of Oral Rehabilitation
Vol/bind50
Udgave nummer9
Sider (fra-til)746-757
ISSN0305-182X
DOI
StatusUdgivet - sep. 2023

Bibliografisk note

Funding Information:
This study was supported by the Sections for Orthodontics and Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University; and Department of Oral Maxillofacial Surgery, University Hospital of Southern Denmark Esbjerg.

Funding Information:
No external funding was obtained for this study. This study was supported by the research fellowship awarded from Aarhus University.

Publisher Copyright:
© 2023 The Authors. Journal of Oral Rehabilitation published by John Wiley & Sons Ltd.

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