Qu Guanlin, Bu Lingtong, Li Xifeng, You Qingling, Luo Yi, Ma Zhigui, Yang Chi
Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, China.
Department of Stomatology, Heze Municipal Hospital, Shandong, China.
J Oral Rehabil. 2025 Jun;52(6):760-768. doi: 10.1111/joor.13924. Epub 2024 Dec 29.
Anterior disc displacement (ADD) is the most common type of temporomandibular joint (TMJ) internal derangement and may lead to condylar resorption (CR) during the adolescence period, but the specific malocclusion associated with ADD and CR remains unclear.
This study aimed to investigate the malocclusion associated with TMJ ADD and CR in adolescents.
This cross-sectional study included a clinical examination of adolescent patients aged 11-19 years. Magnetic resonance imaging (MRI) was used to diagnose both TMJ ADD and CR. Occlusal measurements were obtained and analysed using 3D scanning models.
A total of 242 adolescent patients (53 males and 189 females) underwent TMJ MRI examination and dental occlusion scanning. The prevalence of anterior disc displacement without reduction (ADDwoR) was higher in females than that in males (OR > 1, p < 0.05). Deep overbite and posterior scissor bite were significantly associated with anterior disc displacement with reduction (ADDwR), while Angle Class II malocclusion, anterior open bite and posterior scissor bite were significantly associated with ADDwoR (OR > 1, p < 0.05). Adolescents with excessive overjet and anterior open bite were at a higher risk of CR (OR > 1, p < 0.05), whereas those with deep overbite and individual crossbite had a lower risk of CR (OR < 1, p < 0.05).
Our study offers valuable insights into the association between deep overbite, posterior scissor bite, Angle Class II malocclusion, anterior open bite, excessive overjet and the ADD and CR in adolescents. Orthodontic treatment for adolescent patients should prioritise the health of the TMJ, particularly for these types of malocclusion.
关节盘前移位（ADD）是颞下颌关节（TMJ）内紊乱最常见的类型，在青春期可能导致髁突吸收（CR），但与ADD和CR相关的特定错牙合情况仍不清楚。
本研究旨在调查青少年中与TMJ ADD和CR相关的错牙合情况。
这项横断面研究包括对11至19岁青少年患者进行临床检查。采用磁共振成像（MRI）诊断TMJ ADD和CR。使用三维扫描模型获取并分析咬合测量数据。
共有242例青少年患者（53例男性和189例女性）接受了TMJ MRI检查和牙合扫描。女性不可复性关节盘前移位（ADDwoR）的患病率高于男性（OR>1，p<0.05）。深覆牙合和后牙剪刀状牙合与可复性关节盘前移位（ADDwR）显著相关，而安氏II类错牙合、前牙开牙合和后牙剪刀状牙合与ADDwoR显著相关（OR>1，p<0.05）。前牙深覆盖和前牙开牙合的青少年发生CR的风险较高（OR>1，p<0.05），而深覆牙合和个别反牙合的青少年发生CR的风险较低（OR<1，p<0.05）。
我们的研究为青少年深覆牙合、后牙剪刀状牙合、安氏II类错牙合、前牙开牙合、前牙深覆盖与ADD和CR之间的关联提供了有价值的见解。青少年患者的正畸治疗应优先考虑TMJ的健康，尤其是对于这些类型的错牙合。
