J Orofac Pain
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Randomized Controlled Trial
Effects of local serotonin administration on pain and microcirculation in the human masseter muscle.
To investigate whether exogenously administered 5-hydroxytryptamine (5-HT) at high or low concentration influences pain and microcirculation in the human masseter muscle. ⋯ Intramuscular administration of 5-HT at 1,000 micromol/L into the human masseter muscle induced pain, but 5-HT did not have any effect on local blood flow at either concentration.
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Comparative Study
Increased pain sensitivity to intraoral capsaicin in patients with atypical odontalgia.
To use 2 well-characterized stimuli, the intraoral capsaicin model and the "nociceptive-specific" electrode, to compare superficial nociceptive function between patients with atypical odontalgia (AO) and matched healthy controls. Furthermore, the authors aimed to describe the sensitivity, specificity, and positive predictive values (PPV) of the techniques if group differences could be established. ⋯ AO patients show increased sensitivity to intraoral capsaicin but normal sensitivity to "nociceptive-specific" electrical stimulation of the face in an area proximal to the painful site. The use of the intraoral pain-provocation test with capsaicin as a possible adjunct to the diagnostic workup is hampered by the only moderately good sensitivity and specificity.
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To describe patients' daily coping with the pain of chronic temporomandibular disorders (TMD), the conservative treatment received, and the self-care strategies used, and to examine the relationships between these strategies and daily pain intensity, activity interference, and jaw use limitations. ⋯ TMD clinic patients use a variety of treatment, self-care, and coping strategies to contend with daily pain. Inquiring about a broad range of strategies might help clinicians better understand how individual patients approach pain management. Research is needed to examine whether decreasing activity reduction and emotional support coping results in improved outcomes.
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To study the age- and gender-related prevalence of signs of temporomandibular disorders (TMD) in the Finnish adult population. ⋯ Signs of TMD may be more common among the elderly than is usually reported.