Universidade Federal de São Paulo (UNIFESP), Rua Guilherme Moura, São Paulo, 95, Brazil.
Adv Rheumatol. 2018 Jun 19;58(1):7. doi: 10.1186/s42358-018-0006-z.
The purposes of this study were to assess the prevalence of temporomandibular disorders symptoms and signs and the bite force in pediatric patients with idiopathic musculoskeletal pain syndrome and to compare to healthy control individuals paired by gender and age.
Forty consecutive patients (32 girls) from our outpatient pediatric rheumatology pain clinic with diagnosis of idiopathic musculoskeletal pain syndrome were included in this study. Twenty healthy subjects (16 girls) were considered the control group. All individuals were interviewed according to a standardized questionnaire concerning the presence of orofacial pain and functional impairment, and were submitted to a clinical evaluation following a structured protocol. After that the bite force was measured.
Twelve patients met the ACR criteria for fibromyalgia, and 28 presented the diagnosis of pain amplification syndrome. The mean age of patients was 13.1 years (range, 6-18 years) and of controls was 12.8 years (range, 6-18 years) with no significant difference. Orofacial symptoms occurred in 25 patients (62.5%) and in 3 controls (15%) (p = 0.0014). Sixteen (40%) patients and four (20%) controls presented pain during mandibular function with no significant difference. Although both pain groups presented separately more frequently orofacial symptoms and pain on palpation than the controls, maximal voluntary bite force was similar between patients and controls, between both patient groups and between the two pain groups and controls.
Our findings indicate that temporomandibular disorders symptoms were more prevalent in patients with idiopathic musculoskeletal pain syndrome than in healthy controls. However the bite force was not different among the groups.
本研究旨在评估特发性肌肉骨骼疼痛综合征患儿的颞下颌关节紊乱症状和体征以及咬合力的发生率，并与性别和年龄相匹配的健康对照组进行比较。
本研究纳入了 40 例连续就诊于我院儿科风湿病疼痛门诊的特发性肌肉骨骼疼痛综合征患儿（32 例女孩），并选择了 20 名健康儿童（16 例女孩）作为对照组。所有个体均根据标准化问卷接受了关于口颌疼痛和功能障碍的访谈，并按照结构化方案进行了临床评估。之后测量了咬合力。
12 例患者符合纤维肌痛的 ACR 标准，28 例患者诊断为疼痛放大综合征。患者的平均年龄为 13.1 岁（范围 6-18 岁），对照组的平均年龄为 12.8 岁（范围 6-18 岁），两组之间无显著差异。25 例患者（62.5%）和 3 例对照组（15%）出现口颌症状（p = 0.0014）。16 例（40%）患者和 4 例（20%）对照组在进行下颌功能时出现疼痛，但无显著差异。尽管两组疼痛患者均较对照组更频繁地出现口颌症状和触压痛，但最大自主咬合力在患者与对照组之间、两组患者之间以及两组患者与对照组之间均无差异。
我们的研究结果表明，特发性肌肉骨骼疼痛综合征患儿的颞下颌关节紊乱症状较健康对照组更为常见。然而，各组之间的咬合力并无差异。
