Sapienza University of Rome, Department of Oral and Maxillofacial Sciences, Rome, Italy.
Eur J Paediatr Dent. 2022 Jun;23(2):106-110. doi: 10.23804/ejpd.2022.23.02.05.
Temporomandibular disorders (TMD), in particular disc displacement, are recognised to have a multifactorial aetiology. Ligamentous laxity has been suggested as a potential risk factor for TMD. Ligamentous laxity can lead to generalised joint hypermobility (GJH) involving multiple joints, including the temporomandibular joint (TMJ). The aim of this work is to evaluate the correlation between GJH and disc displacement (DD) assessed on magnetic resonance images (MRI) of the TMJ in adolescent patients.
The study was included 40 adolescent patients (10-16 years), divided into two groups, a Study Group (SG), composed of 20 subjects with GJH, and a Control Group (CG), composed of 20 subjects without GJH. The GJH was assessed by the Beighton test with a threshold value of ≥ 4. The severity of the TMD was determined using the Fonseca Questionnaire and a clinical evaluation of the type of TMD. The condylar-discal relationship and the condylar mobility of the TMJ were evaluated by MRI. Pearson's χ2 Test was performed for the analysis of the statistical correlation.
This study suggests that adolescents with GJH have a greater risk of developing TMJ disc displacement, especially disc displacement without reduction.
颞下颌关节紊乱病（TMD），特别是盘移位，被认为具有多因素病因。韧带松弛被认为是 TMD 的一个潜在危险因素。韧带松弛可导致包括颞下颌关节（TMJ）在内的多个关节的广泛性关节过度活动（GJH）。本研究旨在评估青少年患者 TMJ MRI 上评估的 GJH 与盘移位（DD）之间的相关性。
本研究纳入了 40 名青少年患者（10-16 岁），分为两组，研究组（SG）由 20 名 GJH 患者组成，对照组（CG）由 20 名无 GJH 患者组成。GJH 通过 Beighton 测试评估，阈值≥4。TMD 的严重程度使用 Fonseca 问卷和 TMD 类型的临床评估来确定。TMJ 的髁突-盘关系和髁突活动度通过 MRI 评估。采用 Pearson χ2 检验进行统计相关性分析。
本研究表明，患有 GJH 的青少年发生 TMJ 盘移位的风险更高，特别是无复位的盘移位。
