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	顎関節障害研究診断基準（RDC/TMD）	口腔乾燥症インベントリー (XI)
分野	歯学	歯学
系統	Process / pipeline	Process / pipeline
提唱年	1992 (original), 2014 (current DC/TMD)	1999
提唱者	Schiffman, Ohrbach, and International Consortium	Wayne M. Thomson et al.
種類	Structured diagnostic interview and clinical examination	Self-report questionnaire
原典	Schiffman, E., Ohrbach, R., Truelove, E., Look, J., Anderson, G., Goulet, J.-P., & Drangsholt, M. (2014). Diagnostic criteria for temporomandibular disorders (DC/TMD) for clinical and research applications: Recommendations of the International RDC/TMD Consortium Network and Orofacial Pain Special Interest Group. Journal of Oral & Facial Pain and Headache, 28(1), 6-27.	Thomson, W. M., Chalmers, J. M., Spencer, A. J., & Williams, S. M. (1999). The xerostomia inventory: A multi-item approach to measuring dry mouth. Community Dentistry and Oral Epidemiology, 27(6), 406-412.
別名	RDC/TMD, Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD)	Xerostomia Inventory (XI), XI Scale
関連	3	3
概要	The Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) is a comprehensive, evidence-based diagnostic system for identifying and classifying temporomandibular disorders (TMD)—a group of painful and functional conditions affecting the jaw joint, muscles of mastication, and related structures. Originally developed in 1992 by Schiffman and colleagues and updated to the Diagnostic Criteria for TMD (DC/TMD) in 2014, the RDC/TMD is the international gold standard for TMD diagnosis in research and clinical practice. It combines structured patient history, pain questionnaires, and standardized clinical examination to reliably diagnose muscle disorders, intra-articular disorders, and headache associated with TMD.	The Xerostomia Inventory (XI) is an 11-item self-report questionnaire designed to measure subjective perception of dry mouth (xerostomia). Developed by Thomson and colleagues in 1999, it has become the standard validated instrument for assessing dry mouth severity in clinical practice and research. The XI captures both the frequency and severity of oral dryness symptoms and their impact on daily functioning, distinguishing symptomatic xerostomia from objective salivary gland dysfunction.