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Clinical Trial Summary

Oral burning can have a multitude of reasons. Recent neurophysiologic study results suggest that a primary burning mouth disorder (BMD) may be a peripheral and/or a central neuropathic disorder. The aim of this study is to first identify patients with a primary burning mouth disorder by excluding other possible causes for oral burning. By means of qualitative and quantitative sensory testing and a gustatory examination in the individual patient the investigators want to find out whether neurosensory differences exist between patients with a primary BMD and controls and whether gustatory and neurosensory deficits always coexist in BMD-patients.


Clinical Trial Description

Oral burning can have many different etiologies. Secondary burning mouth disorders (BMD) due to systemic (i.e. diabetes, nutritional deficiencies, allergies), local (i.e. Candidiasis, Lichen planus) or functional factors (i.e. tongue parafunctional activities, mouth breathing) are usually fairly easy to identify and are treated by eliminating the respective cause. A primary BMD as a specific disease is a challenging disorder with regard to assessment and treatment for both, the patient and the dentist. The prevailing hypothesis of a predominantly psychological cause is questioned by recent research results. The typical burning sensation, the partly efficacy of medication that is usually used in chronic, neuropathic pains and recent neurophysiologic studies and finally the finding of a degeneration of epithelial nerve fibers in BMD patients give reason to assume a peripheral and/or central neuropathic etiology. That is, the transduction of nociceptive stimuli in the orofacial region and the transmission and modulation of the nociceptive input might be altered. The hypothesis of a disorder of the gustatory system assumes that gustatory input has an inhibitory influence on the trigeminal nociceptive system. A hypogeusia or ageusia, maybe caused by peripheral nerve degeneration that has been found in BMD patients would therefore lead to a decreased gustatory input which in turn gives way to a central disinhibition of trigeminal nociception, leading to a more painful perception in the oral region. The aim of this study is to first identify patients with a primary burning mouth disorder by excluding other possible causes for oral burning. By means of qualitative and thermal quantitative sensory testing and a gustatory examination in the individual patient we want to find out whether neurosensory differences exist between patients with a primary BMD and controls and whether gustatory and neurosensory deficits always coexist in BMD-patients. ;


Study Design

Time Perspective: Prospective


Related Conditions & MeSH terms


NCT number NCT00504387
Study type Observational
Source Charite University, Berlin, Germany
Contact Markus R Fussnegger, Dr.
Phone +49 30 450 562713
Email markus.fussnegger@charite.de
Status Recruiting
Phase N/A
Start date April 2007
Completion date December 2013

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