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Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice
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The Longitudinal Relationship between Jaw Catching/Locking and Pain
A Ilgunas1,2, B Häggman-Henrikson1,2, C M Visscher3
1Department of Odontology/Clinical Oral Physiology, Faculty of Medicine, University of Umeå, Umeå, Sweden.
Journal of Dental Research
|March 20, 2023
Summary
Jaw catching and locking are more common in women than men, with higher incidence and persistence rates. These jaw dysfunctions often develop independently of orofacial pain.
Area of Science:
- Temporomandibular joint disorders
- Orofacial pain research
- Epidemiology of jaw dysfunction
Background:
- Orofacial pain and jaw dysfunction significantly impair daily activities.
- Limited understanding exists regarding the development and natural progression of jaw catching/locking and its link to orofacial pain.
Purpose of the Study:
- To determine the incidence, prevalence, and gender disparities in jaw catching/locking over time.
- To investigate the relationship between jaw catching/locking and the onset and course of orofacial pain in the general population.
Main Methods:
- Utilized data from validated screening questions on orofacial pain and jaw catching/locking.
- Collected data from routine dental checkups in Sweden between 2010 and 2017.
- Employed logistic generalized estimating equations and Poisson regression for statistical analysis.
Main Results:
- Prevalence of jaw catching/locking was higher in women (3.2%) than men (1.5%) in 2010, a disparity sustained throughout the study.
- Annual incidence rates were 1.1% for women and 0.5% for men.
- Women exhibited a 2.3 times higher risk for both the initial onset and persistent occurrence of jaw catching/locking compared to men.
Conclusions:
- Gender differences observed in orofacial pain are also apparent in jaw catching/locking, with women experiencing higher incidence, prevalence, and persistence.
- The onset of jaw catching/locking and orofacial pain frequently occurs independently, suggesting distinct pathophysiological mechanisms.
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