Burning mouth syndrome (BMS) is an orofacial chronic pain disorder affecting approximately 2-3% of the population. It is associated with burning pain of the oral mucosa, particularly the tongue, buccal mucosa, hard palate, and lips. The disease is thought to have multifactorial influences, including of small fiber pathology, sex hormone levels, anxiety, and stress. However, the central nervous system (CNS) mechanisms of the disease remain largely unknown. In our ongoing work, we have found a link between ongoing pain levels in BMS and brain dysfunction in a small sample of patients. We propose a study that will take into account multiple potential CNS abnormalities that could explain the symptomatology of BMS. The study will include 40 patients with BMS and 20 healthy controls. The patients will include 20 with BMS type 1, in which patients describe increasing burning pain as the day progresses, and 20 with BMS type 2, which is associated with constant pain throughout the day. Participants will undergo testing for two days, which will include electroencephalograph (EEG), functional MRI, and quantitative sensory testing (QST). In each BMS patient, we will perform QST and EEG in the morning and in the afternoon to capture the effects of ongoing pain levels (which is expected to vary most in BMS type 1 patients). If our study is successful, it would provide the beginnings of a long-term program to examine the effects of treatment and ultimately improve available treatments for BMS.

Public Health Relevance

The proposed study will advance our understanding of burning mouth syndrome, a disease whose cause is unknown. We will approach the problem by investigating the disease as one affecting primarily the central nervous system, assessing perception and brain function in patients over three days of testing. The discoveries made in this project could help identify treatment targets.

Agency
National Institute of Health (NIH)
Type
Exploratory/Developmental Grants (R21)
Project #
1R21DE023964-01A1
Application #
8770260
Study Section
Somatosensory and Chemosensory Systems Study Section (SCS)
Program Officer
Fischer, Dena
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2014
Total Cost
Indirect Cost
Name
University of Maryland Baltimore
Department
None
Type
Schools of Dentistry/Oral Hygn
DUNS #
City
Baltimore
State
MD
Country
United States
Zip Code
21201