Investigation of actual use of the new classification for temporomandibular disorders 2013 using a self-administered questionnaire

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  • DANJO Atsushi
    Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saga University
  • KAKUDO Kenji
    Second Department of Oral and Maxillofacial Surgery, Osaka Dental University
  • KUBOTA Eiro
    Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saga University Kubota Oral and Maxillofacial Clinic
  • YATANI Hirofumi
    Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
  • TSUKIYAMA Yoshihiro
    Section of Dental Education, Faculty of Dental Science, Kyushu University
  • ARIMA Taro
    Section of International Affairs, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University
  • MATSUKA Yoshizo
    Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University
  • YAMASHITA Yoshio
    Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saga University

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Other Title
  • アンケート調査による顎関節症の病態分類（2013年）の利用状況

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Abstract

<p>In 2013, the Japanese Society for the Temporomandibular Joint announced a new classification of temporomandibular disorders (2013) based on the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD). Three years later, we investigated how the classification was viewed by 153 chief medical instructors at Japanese training institutions involved in TMD treatments. We explored the usage situation, methods employed, diagnostic overlaps, treatment priorities, availability of clinical statistics, utility of the new classification, and education of students and residents. We found that 87% of facilities used the new classification. In terms of diagnosis, the new classification was used by 73% of facilities, while 13% used the original DC/TMD. Multiple diagnoses were made in 88% of facilities, many of which prioritized treatment of arthralgia and myalgia. Overall, 23% of facilities considered the DC/TMD "useful" and 67% considered it "somewhat useful". The new classification was used to educate students and residents in 76% of facilities. Thus, the new classification is spreading widely as a result of its usefulness. Guidance in terms of treatment priority and a Japanese version of the DC/TMD including imaging criteria are required.</p>

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