Lövgren Anna, Österlund Catharina, Ilgunas Aurelija, Lampa Ewa, Hellström Fredrik
a Clinical Oral Physiology, Department of Odontology Faculty of Medicine , University of Umeå , Umeå , Sweden.
b Centre for Musculoskeletal Research, Department of Occupational and Public Health Sciences, Faculty of Health and Occupational Studies , University of Gävle , Gävle , Sweden.
Acta Odontol Scand. 2018 Aug;76(6):387-393. doi: 10.1080/00016357.2018.1440322. Epub 2018 Feb 18.
Dental students have been identified as a group with high risks of developing both temporomandibular disorders (TMD) and psychosocial conditions. Our primary aim was to evaluate the cross-sectional prevalence of TMD diagnoses, as defined in the Diagnostic Criteria (DC)/TMD, among dental students. The secondary aim was to evaluate the prevalence and association of behavioural and psychosocial factors in relation to DC/TMD diagnoses.
The study was conducted among undergraduate dental students during the second semester of their third year at the Department of Odontology, Medical Faculty, Umeå University, Sweden. Three consecutive cohorts were recruited during August in 2013, 2014, 2015. In total, 54 students were included and examined according the DC/TMD procedure.
The prevalence of any DC/TMD diagnosis was 30%. The most prevalent TMD diagnosis was myalgia. Individuals with a TMD-pain diagnosis (i.e. myalgia or arthralgia) reported significantly higher pain intensity levels according to the Graded Chronic Pain Scale (GCPS) as compared to individuals without TMD-pain (Fisher's exact test p < .001, two-sided). In addition, individuals with any TMD scored significantly higher jaw functional limitations according to the Jaw Functional Limitation Scale 20 (JFLS-20, p < .001) and oral parafunctions according to the Oral Behavior Checklist (OBC, p = .005) as compared to individuals without TMD. The psychosocial factors evaluated did not differ between individual with or without a TMD diagnosis. The majority of the dental students reported symptoms that are already identified as risk factors for developing TMD and pain conditions. However, longitudinal data are needed to evaluate how this evolves over time.
牙科学生被认为是颞下颌关节紊乱病（TMD）和心理社会问题高发群体。我们的主要目的是评估牙科学生中符合诊断标准（DC）/TMD定义的TMD诊断的横断面患病率。次要目的是评估与DC/TMD诊断相关的行为和心理社会因素的患病率及关联性。
本研究在瑞典于默奥大学医学院牙科学系三年级本科牙科学生的第二学期进行。在2013年、2014年、2015年8月招募了连续三个队列。总共纳入54名学生，并根据DC/TMD程序进行检查。
任何DC/TMD诊断的患病率为30%。最常见的TMD诊断是肌痛。与无TMD疼痛的个体相比，根据分级慢性疼痛量表（GCPS），TMD疼痛诊断（即肌痛或关节痛）的个体报告的疼痛强度水平显著更高（Fisher精确检验p < 0.001，双侧）。此外，与无TMD的个体相比，任何TMD的个体根据下颌功能受限量表20（JFLS - 20，p < 0.001）和根据口腔行为检查表（OBC，p = 0.005）的口腔副功能得分显著更高。评估的心理社会因素在有或无TMD诊断的个体之间没有差异。大多数牙科学生报告了已被确定为TMD和疼痛状况发展危险因素的症状。然而，需要纵向数据来评估这如何随时间演变。
