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Prevalence of oromandibular dysfunction in a general population
R Jensen1, B K Rasmussen, B Pedersen
1The Glostrup Population Studies, Department of Internal Medicine C, Glostrup Hospital, Copenhagen, Denmark.
Journal of Orofacial Pain
|January 1, 1993
Summary
Oromandibular dysfunction, a subgroup of tension-type headache, affects 22% with clenching and 15% with teeth grinding. This study evaluates its role in headache prevalence.
Area of Science:
- Dentistry
- Neurology
- Public Health
Background:
- Oromandibular dysfunction (OMD) is often linked to tension-type headaches.
- Diagnostic criteria for OMD, particularly as a tension-type headache subgroup, require further population-based evaluation.
- Previous studies have not consistently excluded muscle tenderness, potentially affecting prevalence estimates.
Purpose of the Study:
- To determine the prevalence of oromandibular dysfunction in a general adult population.
- To identify common symptoms and signs of OMD.
- To establish a baseline for understanding OMD's contribution to tension-type headaches.
Main Methods:
- A random sample of 1,000 subjects aged 25-64 years was surveyed.
- 735 subjects participated in the study.
- Diagnosis of OMD followed International Headache Society criteria, excluding pericranial muscle tenderness.
Main Results:
- The prevalence of clenching was 22% and teeth grinding was 15%.
- Irregular jaw movements during opening and closing were the most common sign, observed in 29% of subjects.
- The male to female ratio for most OMD symptoms and signs ranged from 2:3 to 1:3.
Conclusions:
- Oromandibular dysfunction is a prevalent condition within the adult population.
- Specific symptoms like clenching and grinding, and signs like irregular jaw movements, are common indicators of OMD.
- This research provides a foundation for investigating OMD as a potential causative factor in tension-type headaches.