Filho Jov, Manzi F R, de Freitas D Q, Bóscolo F N, de Almeida S M
Oral Radiology, University of Fortaleza, Fortaleza, Ceará, Brazil.
Dentomaxillofac Radiol. 2007 Sep;36(6):336-40. doi: 10.1259/dmfr/17973079.
The aetiology of temporomandibular disorders (TMD) is presently considered to be multifactorial, and stress has been regarded as an important factor in their onset. Many studies have evaluated the importance of stress in TMD; however, only patients with TMD and stress have been assessed. This study aimed at evaluating signs and symptoms of TMD in stress-free patients.
The temporomandibular joints (TMJs) of 40 stress-free patients were evaluated during clinical examination and in MRI.
The individuals lived in an area without electric power supply or telephone services. They worked in agriculture and fishery. 77.5% of the patients presented normal mandibular function; 70% presented normal mandibular trajectory; 61.25% did not present sounds in TMJ and 93.75% did not present joint pain during palpation. Image screening showed that 70% of TMJ presented normal disc position. Only one patient (1.25%) presented TMD.
The absence of stress is a strong factor for the non-development of TMD.
目前认为颞下颌关节紊乱病（TMD）的病因是多因素的，压力被视为其发病的一个重要因素。许多研究评估了压力在TMD中的重要性；然而，仅对患有TMD和压力的患者进行了评估。本研究旨在评估无压力患者的TMD体征和症状。
在临床检查和MRI检查期间对40名无压力患者的颞下颌关节（TMJ）进行了评估。
这些个体生活在一个没有供电或电话服务的地区。他们从事农业和渔业工作。77.5%的患者下颌功能正常；70%的患者下颌轨迹正常；61.25%的患者颞下颌关节未出现弹响，93.75%的患者在触诊时未出现关节疼痛。影像学筛查显示，70%的颞下颌关节盘位置正常。只有一名患者（1.25%）患有TMD。
无压力是TMD不发生的一个重要因素。
