Conditioned pain modulation in temporomandibular disorders (TMD) pain patients

The aims were to investigate (1) if temporomandibular disorders (TMD) patients with temporomandibular joint (TMJ) pain had different conditioned pain modulation (CPM) compared with healthy subjects and, (2) if clinical pain characteristics influenced CPM. Sixteen TMD pain patients and 16 age-matched...

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Bibliographic Details
Published in:Experimental brain research 2014-10, Vol.232 (10), p.3111-3119
Main Authors: Oono, Yuka, Wang, Kelun, Baad-Hansen, Lene, Futarmal, Simple, Kohase, Hikaru, Svensson, Peter, Arendt-Nielsen, Lars
Format: Article
Language:English
Subjects:
Adult
Age
Aged
Analysis
Biological and medical sciences
Biomedical and Life Sciences
Biomedicine
Chronic pain
Comparative analysis
Conditioning (Psychology) - physiology
Dentistry
Female
Forearm - physiopathology
Fundamental and applied biological sciences. Psychology
Humans
Male
Masseter Muscle - physiopathology
Middle Aged
Neurology
Neurosciences
Pain
Pain Measurement - methods
Pain Threshold - physiology
Physical Stimulation - methods
Physiology
Research Article
Temporomandibular Joint - physiopathology
Temporomandibular joint disorders
Temporomandibular Joint Disorders - physiopathology
Temporomandibular Joint Disorders - therapy
Vertebrates: nervous system and sense organs
Young Adult
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Summary:The aims were to investigate (1) if temporomandibular disorders (TMD) patients with temporomandibular joint (TMJ) pain had different conditioned pain modulation (CPM) compared with healthy subjects and, (2) if clinical pain characteristics influenced CPM. Sixteen TMD pain patients and 16 age-matched healthy subjects were participated. A mechanical conditioning stimulus (CS) was applied to pericranial muscles provoking a pain intensity of 5/10 on a visual analogue scale. Pressure pain thresholds (PPT) and pressure pain tolerance thresholds (PPTol) were assessed at masseter, forearm and painful TMJ (only PPT) before, during, and 20 min after CS. Data were analyzed with ANOVAs. The correlations between CPM effect and ratings of TMD pain intensity on a numerical rating scale (NRS) or the pain duration were calculated (correlation coefficient; R ). The relative PPT and PPTol increases (mean for the three assessment sites) during CS were significantly higher than baseline in healthy subjects (43.0 ± 3.6, 33.0 ± 4.0 %; P  
ISSN:0014-4819
1432-1106
DOI:10.1007/s00221-014-3997-7