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  • Title: Agreement of the International Classification of Sleep Disorders Criteria with polysomnography for sleep bruxism diagnosis: A preliminary study.
    Author: Stuginski-Barbosa J, Porporatti AL, Costa YM, Svensson P, Conti PC.
    Journal: J Prosthet Dent; 2017 Jan; 117(1):61-66. PubMed ID: 27460312.
    Abstract:
    STATEMENT OF PROBLEM: Validated questionnaires and guidelines for assessing sleep bruxism (SB) that can be administered by dentists in clinical practice are still lacking. PURPOSE: The purpose of this preliminary study was to compare the third edition of the International Classification of Sleep Disorders (ICSD-3) criteria for diagnosing SB with the results of the gold standard polysomnography (PSG) examination. MATERIAL AND METHODS: Twenty consecutive postgraduate students and staff at Bauru School of Dentistry, University of São Paulo, Bauru, Brazil, participated. Each participant underwent interview, clinical assessment, and a PSG evaluation. Bruxers and nonbruxers were identified based only on the PSG analysis. The validity of the ICSD-3 criteria was assessed by receiver operating characteristics curve analysis, area under the curve (AUC), likelihood ratios (LR), and the diagnostic odds ratio (DOR). RESULTS: The ICSD-3 diagnostic criteria items for SB had fair to moderate concordance with the PSG diagnosis, with AUC ranging from 0.55 to 0.75. The best value of agreement was the association of SB more than once a week with transient morning jaw muscle pain or fatigue with a moderate but significant agreement with the PSG diagnosis of SB (AUC=0.75), with 90% specificity, positive LR=6, and DOR=13.5. When the frequency of self-reported SB increased to more than 4 times a week, the combination of this finding with tooth wear also had high values of agreement with the PSG diagnosis of SB (AUC= 0.75, +LR=6, DOR=13.6). CONCLUSIONS: The report of regular or frequent SB and the presence of (1) incident of abnormal tooth wear or (2) incidents of transient morning jaw muscle pain or fatigue were the best discriminatory items of ICSD-3 for SB diagnosis.
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