J Orofac Pain
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As there is a high correspondence between the experience of trauma and posttraumatic stress disorder (PTSD) symptoms among chronic orofacial pain patients, study objectives included: (1) to document the nature of traumatic experiences and severity of PTSD symptoms among a female sample of orofacial pain patients, (2) to examine the relationship between PTSD symptoms and both pain-related and psychosocial outcomes, and (3) to use structural equation modeling (SEM) to test hypotheses of mediation derived from the Mutual Maintenance Model of chronic pain and PTSD. ⋯ PTSD and depression screening as well as thorough sleep evaluations should be included in the routine assessment for orofacial pain patients and, if appropriate, referrals for treatment of PTSD symptoms should be considered part of the standard of care.
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To evaluate the prevalence of pain associated with temporomandibular disorders (TMD) in obstructive sleep apnea syndrome (OSAS) patients referred for oral appliance therapy. ⋯ The high prevalence of TMD in the current study indicates that patients with OSAS referred for oral appliance therapy require specific evaluation related to TMD.
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Time courses of myofascial temporomandibular disorder complaints during a 12-month follow-up period.
To investigate the time courses of myofascial temporomandibular disorder (TMD) pain and mandibular function impairment (MFI), and to identify predictive factors associated with these time courses. ⋯ Baseline reports of pain and impairment, oral parafunctional activities, pain elsewhere in the body, and somatization are associated with the severity and time course of myofascial TMD complaints following treatment.
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Recent evidence suggests that the purinoceptor P2X7 may be involved in the development of dysesthesia following nerve injury, therefore, the aim of the present study was to investigate whether a correlation exists between the level of P2X7 receptor expression in damaged human lingual nerves and the severity of the patients' symptoms. ⋯ These data show that P2X7 is expressed in human lingual nerve neuromas from patients with and without dysesthesia. It therefore appears that the level of P2X7 expression at the injury site may not be linked to the maintenance of neuropathic pain after lingual nerve injury.
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The lack of standardized diagnostic criteria for defining clinical subtypes of temporomandibular disorders (TMD) was the main motive to create the Research Diagnostic Criteria for TMD (RDC/TMD), which were provided to allow standardization and replication of research into the most common forms of muscle- and joint-related TMD. The RDC/TMD offered improvement compared to the older literature: the use of one system classifying TMD subgroups and the introduction of a dual-axis classification. The aim of this Focus Article is to appraise the RDC/TMD Axis I (physical findings). ⋯ It is also noted that in the 2004 mission statement of the International Consortium For RDC/TMD-Based Research, the RDC/TMD are also advocated for clinical settings. Clinicians may eagerly embrace the RDC/TMD, believing that the clinical use of the RDC/TMD as a diagnostic procedure is already supported by evidence, but its application is not indicated in clinical settings. The article concludes that given the research developments, there is a need to update the RDC/TMD Axis I in the clinical research setting.