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Sensory dysfunction in burning mouth syndrome.
Heli Forssell1, Satu Jääskeläinen, Olli Tenovuo
1Department of Oral Diseases, Turku University Central Hospital, Lemminkäisenkatu 2, FIN-20520 Turku, Finland. heli.forssell@tyks.fi
Pain
|September 19, 2002
Summary
Burning mouth syndrome (BMS) may stem from nerve damage. This study found evidence of neuropathic changes in 76% of patients using quantitative sensory tests and blink reflex recordings, suggesting new treatment avenues.
Area of Science:
- Neurology
- Pain Medicine
- Oral Medicine
Background:
- Burning mouth syndrome (BMS) is a complex condition with an unclear etiology.
- Preliminary studies suggest a potential neuropathic origin for BMS.
- Understanding the neural mechanisms is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the neural mechanisms underlying BMS pain.
- To further explore the hypothesis of a neuropathic etiology in BMS patients.
- To categorize BMS patients based on electrophysiologic and sensory findings.
Main Methods:
- Quantitative sensory tests (QST) were employed to assess sensory function.
- Blink reflex (BR) recordings were used to evaluate trigeminal nerve pathways.
- A cohort of 52 BMS patients underwent both QST and BR assessments.
Main Results:
- Electrophysiologic findings classified BMS patients into four categories.
- Ten patients (19%) showed BR abnormalities suggesting trigeminal system changes.
- Abnormal sensory thresholds, indicating thin fiber dysfunction, were found in 76% of tested patients.
Conclusions:
- The study provides strong evidence for a neuropathic background in BMS.
- Findings highlight the prevalence of thin fiber dysfunction in BMS patients.
- Results may guide the development of novel therapeutic strategies for BMS.