Experimental Jaw Muscle Pain Increases Pain Scores and Jaw Movement Variability in Higher Pain Catastrophizers

2014 ◽  
Vol 28 (3) ◽  
pp. 191-204 ◽  
Author(s):  
Rahena Akhter ◽  
Janet Benson ◽  
Peter Svensson ◽  
Michael K. Nicholas ◽  
Christopher C. Peck ◽  
...  
Keyword(s):  
Muscle Pain ◽  
Movement Variability ◽  
Jaw Movement ◽  
Pain Scores ◽  
Jaw Muscle

Influence of emotionally loaded visual and gustatory stimuli on pain perception

2012 ◽  
Vol 3 (3) ◽  
pp. 191-192
Author(s):  
E. Horjales ◽  
N.B. Finnerup ◽  
T.S. Jensen ◽  
P. Svensson
Keyword(s):  
Hypertonic Saline ◽  
Muscle Pain ◽  
Healthy Subjects ◽  
Positive Emotions ◽  
Pain Perception ◽  
Negative Emotions ◽  
International Affective Picture System ◽  
Pain Scores ◽  
Jaw Muscle ◽  
Conditioning Stimuli

AbstractBackground/aimsPrevious studies have focused on the effect of negative emotions generated by music, pictures or odours on pain perception. This study tested whether emotionally loaded visual and gustatory stimuli could influence experimental tonic jaw muscle pain in healthy subjects.Methods32 healthy subjects (16 men, 16 women; 18–39 years old) participated. In two sessions experimental jaw muscle pain was evoked by injection of 0.2 ml hypertonic saline into the masseter muscle. In the first session with each injection an emotion (positive, negative or neutral) was generated by visual stimuli (pictures taken from International Affective Picture System). In the second session, emotions were generated by gustatory stimuli (75% sucrose = sweet, 0.1% quinine = bitter, or tasteless gelatine). The participants continuously rated pain intensity (electronic visual analogue scale – VAS) as well as mood and unpleasantness/pleasantness of the conditioning stimuli (visual/ gustatory).Results and conclusionHypertonic saline evoked moderate levels of pain in all subjects (mean peak VAS = 5.2 ± 2.4). During conditioning with negatively loaded pictures VAS pain scores were increased (19.3%) compared with neutral (p = 0.03) and positive emotions (p = 0.001). There was a linear relation between negative emotions and VAS pain scores (r = 0.40, p = 0.02). Although there was a tendency, no significant effect was observed during positive pictures in comparison with neutrals (p = 0.1). Surprisingly no effect on VAS pain scores was observed during neither negative (p = 0.1) nor positive (p = 0.2) gustatory stimuli. This may be due to failure of the gustatory stimuli to generate a change in emotions. These results suggest that not all conditioning stimuli are potent modifiers of emotions, which seem to be a prerequisite for effects on pain perception.

Short Communication Motor activity in sleep bruxism with concomitant jaw muscle pain. A retrospective pilot study

1997 ◽  
Vol 105 (1) ◽  
pp. 92-95 ◽  
Author(s):  
Gilles J. Lavigne ◽  
Pierre H. Rompré ◽  
Jacques Y. Montplaisir ◽  
Frank Lobbezoo
Keyword(s):  
Pilot Study ◽  
Motor Activity ◽  
Muscle Pain ◽  
Short Communication ◽  
Sleep Bruxism ◽  
Jaw Muscle

Effect of experimental jaw muscle pain on occlusal contacts

2010 ◽  
Vol 38 (6) ◽  
pp. 404-409 ◽  
Author(s):  
N. MOBILIO ◽  
S. CATAPANO
Keyword(s):  
Muscle Pain ◽  
Jaw Muscle

Effects of muscle fatigue induced by low-level clenching on experimental muscle pain and resting jaw muscle activity: gender differences

2006 ◽  
Vol 174 (3) ◽  
pp. 566-574 ◽  
Author(s):  
Tetsurou Torisu ◽  
Kelun Wang ◽  
Peter Svensson ◽  
Antoon De Laat ◽  
Hiroyuki Fujii ◽  
...  
Keyword(s):  
Gender Differences ◽  
Muscle Fatigue ◽  
Muscle Activity ◽  
Muscle Pain ◽  
Low Level ◽  
Experimental Muscle Pain ◽  
Jaw Muscle
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