State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, Sichuan, China.
Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
J Oral Rehabil. 2023 Aug;50(8):644-654. doi: 10.1111/joor.13463. Epub 2023 Apr 19.
Some orthodontic patients are associated with temporomandibular joint disorders (TMDs), and the differences between jaw function and psychological states in orthodontic patients with different types of TMDs remain unknown.
This cross-sectional study aimed to investigate the prevalence of different types of TMDs in orthodontic patients and to evaluate the relationship between different types of TMDs and jaw functional limitation and psychological distress in orthodontic patients.
A questionnaire was sent to patients willing to participate in this survey, which included questions about the demographic characteristics of the participants, the five TMD symptoms (5Ts) of the Diagnostic Criteria for TMDs, the Jaw Functional Limitation Scale-8 (JFLS-8) and the Patient Health Questionnaire for Depression and Anxiety (PHQ-4). The subjects were divided into three groups: painful TMDs (PT), non-painful TMDs (NPT), and TMD-free according to whether they had TMDs and its subtypes.
A total of 670 valid questionnaires were collected from 182 males and 488 females. The prevalence of TMDs was 35.4%, of which the prevalence of PT was 11.8% and the prevalence of NPT was 23.6%. The median JLFS-8 score of TMD patients was significantly higher than TMD-free, and PT patients were significantly higher than NPT (p = .026). After adjusting for confounding factors, the jaw function and psychological states of PT patients and NPT patients were worse than those of the TMD-free group.
Among the orthodontic patients surveyed, more than one-third had TMDs and the prevalence of PT was lower than NPT. Having TMDs is associated with more severe jaw functional limitation, and PT patients were more serious than NPT patients. At the same time, the psychological states of TMDs patients were also worse.
一些正畸患者与颞下颌关节紊乱症（TMD）有关，不同类型 TMD 的正畸患者的颌功能和心理状态差异尚不清楚。
本横断面研究旨在调查正畸患者 TMD 的不同类型的患病率，并评估不同类型的 TMD 与正畸患者的颌功能受限和心理困扰之间的关系。
向愿意参与这项调查的患者发送问卷，其中包括参与者的人口统计学特征、TMD 诊断标准的 5 个 TMD 症状（5Ts）、颌功能受限量表-8（JFLS-8）和抑郁和焦虑患者健康问卷（PHQ-4）。受试者根据是否患有 TMD 及其亚型分为三组：疼痛性 TMD（PT）、非疼痛性 TMD（NPT）和 TMD 无。
共收集了 182 名男性和 488 名女性的 670 份有效问卷。TMD 的患病率为 35.4%，其中 PT 的患病率为 11.8%，NPT 的患病率为 23.6%。TMD 患者的 JFLS-8 评分中位数明显高于 TMD 无，PT 患者明显高于 NPT（p = .026）。调整混杂因素后，PT 患者和 NPT 患者的颌功能和心理状态均较 TMD 无组差。
在所调查的正畸患者中，超过三分之一患有 TMD，PT 的患病率低于 NPT。患有 TMD 与更严重的颌功能受限相关，PT 患者比 NPT 患者更严重。同时，TMD 患者的心理状态也更差。
