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  • Title: Do psychological factors and general health influence the short-term efficacy of resilient appliance therapy in patients with temporomandibular disorder pain?
    Author: Nilsson H, Ekberg E.
    Journal: Acta Odontol Scand; 2010 May; 68(3):141-7. PubMed ID: 20113145.
    Abstract:
    OBJECTIVES: To study how sense of coherence (SOC), grade of depression and non-specific physical symptoms and general health influence the efficacy of intraoral appliance therapy in patients with temporomandibular disorder (TMD) pain. A second objective was to study the association between SOC, grade of depression, grade of non-specific physical symptoms and general health. MATERIAL AND METHODS: A total of 73 TMD pain patients participated; 36 were treated with a resilient appliance and 37 with a non-occluding control appliance in a randomized controlled trial for a period of 10 weeks. All patients had at least one pain diagnosis according to the research diagnostic criteria for TMD, including both the Symptom Checklist-90-Revised (Axis II) measuring grade of depression and non-specific physical symptoms, and general health (physical characteristics). Patients also filled in the 29-item SOC questionnaire. RESULTS: A low grade of SOC was found in eight of the patients in the treatment group and in 17 of the control group at baseline, with a statistically significant difference between the groups. Logistic regression analyses revealed that, after correcting for the background variables, the resilient appliance did not differ from the non-occluding control appliance in terms of treatment outcome. No statistically significant differences were found when correlating mean SOC with grade of depression, grade of non-specific physical symptoms and general health. CONCLUSIONS: These findings indicate that none of the studied background variables (age, gender, SOC, depression, non-specific physical symptoms or general health) seemed to influence the short-term efficacy of intraoral appliances. No association was found between SOC and depression, non-specific physical symptoms or general health in TMD pain patients.
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