Bäck Karin, Ahlqwist Margareta, Hakeberg Magnus, Dahlström Lars
Department of Behavioral and Community Dentistry, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden.
Department of Oral and Maxillofacial Radiology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden.
Community Dent Oral Epidemiol. 2017 Oct;45(5):478-484. doi: 10.1111/cdoe.12312. Epub 2017 Jul 12.
To determine the prevalence and incidence of radiographic signs of osteoarthritis/osteoarthrosis (OA) in the temporomandibular joint (TMJ) among middle-aged and older women.
Data were collected from ongoing representative, longitudinal and repeated cross-sectional studies in Gothenburg, Sweden. Panoramic radiographs (PAN) have been taken regularly since 1968. The cohorts were systematically selected from the female population at the ages of 38, 50, 62 and 74. Condylar alterations indicative of OA (flattening/osteophyte/erosion) were evaluated in a total of 5234 PANs by one examiner under standardized conditions. Intra-examiner reliability was good. Sensitivity was poor, and specificity was acceptable in relation to computed tomography.
The prevalence of signs of OA in the TMJ was 18% on panoramic radiographs at the age of 38, gradually increasing with age. At the age of 62, the prevalence was 38%, and it was stable around 45% in the older age groups. The highest incidence rate of OA was between the ages of 55 and 65. Bilateral OA was uncommon. Flattening was the most prominent finding.
The prevalence of signs of OA in the TMJ, including remodeling, evaluated on panoramic radiographs in representative cohorts of women, increases substantially with age. Around one in every five middle-aged women and almost every second woman of older ages can be expected to have some radiographic alteration in the TMJ. The highest proportion with new findings of OA is to be found among older middle-aged women.
确定中老年女性颞下颌关节（TMJ）骨关节炎/骨关节病（OA）影像学征象的患病率和发病率。
数据收集自瑞典哥德堡正在进行的具有代表性的纵向和重复横断面研究。自1968年以来定期拍摄全景X线片（PAN）。这些队列是从38岁、50岁、62岁和74岁的女性人群中系统选取的。由一名检查者在标准化条件下对总共5234张PAN进行评估，以确定提示OA的髁突改变（变平/骨赘/侵蚀）。检查者内可靠性良好。与计算机断层扫描相比，敏感性较差，特异性尚可。
在38岁时，全景X线片上TMJ的OA征象患病率为18%，随年龄逐渐增加。62岁时，患病率为38%，在老年组中稳定在45%左右。OA的最高发病率在55岁至65岁之间。双侧OA不常见。变平是最突出的表现。
在具有代表性的女性队列中，通过全景X线片评估的TMJ中OA征象的患病率，包括重塑，随年龄大幅增加。预计每五名中年女性中约有一名以及几乎每两名老年女性中就有一名TMJ会有一些影像学改变。OA新发现比例最高的是中老年女性。
