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Modulation of experimental facial pain via somatosensory stimuli targeting sensations of different valence

Taneja, P (author)
Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark; Scandinavian Centre for Orofacial Neurosciences (SCON), Aarhus, Denmark,Aarhus Univ, Denmark; SCON, Denmark
Olausson, Håkan (author)
Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Region Östergötland, Neurofysiologiska kliniken US
Trulsson, M (author)
Karolinska Institutet,SCON, Denmark; Karolinska Inst, Sweden
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Vase, L (author)
Department of Psychology and Behavioural Sciences, Aarhus University, Aarhus, Denmark,Aarhus Univ, Denmark
Svensson, Peter (author)
Malmö universitet,Odontologiska fakulteten (OD),Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark; Scandinavian Center for Orofacial Neurosciences (SCON),Aarhus Univ, Denmark; SCON, Denmark; Malmo Univ, Sweden
Baad-Hansen, L (author)
Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark; Scandinavian Centre for Orofacial Neurosciences (SCON), Aarhus, Denmark,Aarhus Univ, Denmark; SCON, Denmark
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 (creator_code:org_t)
2020-04-24
2020
English.
In: Journal of Oral Rehabilitation. - : John Wiley & Sons. - 1365-2842 .- 0305-182X. ; 47:6, s. 720-730
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • BACKGROUND: Knowledge of pain modulation from orofacial somatosensory stimuli with different valence (pleasant-unpleasant) is limited.OBJECTIVES: To investigate: (1) The modulatory effects of painful, pleasant and unpleasant somatosensory stimuli on 2 models of experimental facial pain, (2) If modulation could be changed by blocking peripheral nerves via application of a local anesthetic: EMLA, or blocking endogenous opioid receptors via naltrexone, (3) If pain ratings were significantly correlated with participant psychological profiles.METHODS: 38 healthy women received experimental facial skin burning pain or jaw myalgia for four randomised sessions on different days. The painful region was stimulated with mechanical or thermal painful, pleasant, unpleasant and control stimuli, with ratings recorded before and during stimulation. Sessions differed in pre-treatment: EMLA/naltrexone/placebo tablet/cream.RESULTS: Significant effects of thermal or mechanical stimuli (P<0.017), but not session (P>0.102), were found on pain ratings for both models. In myalgia, painful cold resulted in a greater reduction in pain ratings than unpleasant cold, pleasant cold, control and pleasant warmth (P<0.004). Decreases in pain ratings from painful, unpleasant and pleasant mechanical stimuli was greater than control (P<0.002). In burning pain, painful cold resulted in a greater reduction in pain ratings than all but one of the other thermal stimuli (P<0.033). The pleasant mechanical stimulus reduced pain ratings more than all other mechanical stimuli (P≤0.003). There were no significant correlations between pain and psychometrics.CONCLUSION: Valence targeted thermal and mechanical stimuli modulated experimental myalgia and skin burning pain (P<0.017). Partially blocking peripheral afferents or opioid receptors did not affect modulation.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Odontologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Dentistry (hsv//eng)

Keyword

Experimental pain
myalgia
nociception
orofacial pain
somatosensation
stimulus
trigeminal nerve

Publication and Content Type

ref (subject category)
art (subject category)

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