Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, India.
Department of Periodontology, Faculty of Dental Sciences, King George's Medical University, Lucknow, India.
J Prosthodont. 2019 Jan;28(1):e445-e449. doi: 10.1111/jopr.12704. Epub 2017 Nov 14.
To determine the prevalence of temporomandibular disorders (TMD) in medical university students and to analyze the relationship of TMD with psychological and functional occlusal parameters.
200 students (mean age 21.81 ± 1.99) were screened for TMD with the TMD Pain Screener. Clinical examinations identified the participants with TMD. Based on their diagnostic criteria for TMD (DC/TMD) axis I diagnosis, participants were divided into three groups: group 1- non-TMD, group 2- pain related TMD and headaches, and group 3- intra-articular joint disorders. Further study was continued involving patients diagnosed with TMD as the study group, and an equal number of age- and sex-matched participants were selected in control group. Among these, emotional distress was evaluated using the "hospital anxiety and depression scale" (HADS). Occlusal evaluations were done by using the T-Scan computerized occlusal analysis system. Occlusion time, left lateral disclusion time, right lateral disclusion time, and protrusion disclusion time were measured with T-Scan III. These parameters were compared among the groups with ANOVA test at a significance level of 0.05.
17% of the population were affected by TMD. The mean HADSd (depression) and HADSa (anxiety) scores were significantly higher (p < 0.05) in group 2 (7.67 ± 3.68; 10.60 ± 3.33) and group 3 (6.89 ± 3.23; 9.26 ± 4.05) as compared to group 1 (3.18 ± 2.33; 5.29 ± 3.21). The mean values of occlusion time, left lateral disclusion time, right lateral disclusion time, and protrusion-disclusion time were also higher for group 2 and group 3 as compared to group 1.
This study found that the prevalence of TMD in this university student population was 17%. There were significant associations of TMD with psychological parameters and functional occlusal parameters.
确定医科大学生颞下颌关节紊乱病（TMD）的患病率，并分析 TMD 与心理和功能性咬合参数的关系。
用 TMD 疼痛筛查器对 200 名学生（平均年龄 21.81±1.99 岁）进行 TMD 筛查。临床检查确定了 TMD 患者。根据 TMD（DC/TMD）轴 I 诊断的诊断标准，将参与者分为三组：组 1-非 TMD，组 2-疼痛相关 TMD 和头痛，组 3-关节内紊乱。进一步的研究继续涉及被诊断为 TMD 的患者作为研究组，并且在对照组中选择了数量相等的年龄和性别匹配的参与者。其中，使用“医院焦虑和抑郁量表”（HADS）评估情绪困扰。使用 T-Scan 计算机化咬合分析系统进行咬合评估。使用 T-Scan III 测量咬合时间、左侧侧方分离时间、右侧侧方分离时间和前伸分离时间。在 0.05 的显著性水平下，通过 ANOVA 检验比较组间这些参数。
17%的人群受 TMD 影响。组 2（7.67±3.68；10.60±3.33）和组 3（6.89±3.23；9.26±4.05）的 HADSd（抑郁）和 HADSa（焦虑）评分均显著高于组 1（3.18±2.33；5.29±3.21）（p<0.05）。与组 1 相比，组 2 和组 3 的咬合时间、左侧侧方分离时间、右侧侧方分离时间和前伸分离时间的平均值也更高。
本研究发现，该大学生人群中 TMD 的患病率为 17%。TMD 与心理参数和功能性咬合参数存在显著关联。
