Yu Yanfang, Wang Sijie, Wu Mengjie, Chen Xiaoyan, He Fuming
Key Laboratory of Oral Biomedical Research of Zhejiang Province, Department of Orthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Cancer Center of Zhejiang University, Hangzhou 310027, China.
Key Laboratory of Oral Biomedical Research of Zhejiang Province, Department of Prosthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Cancer Center of Zhejiang University, Hangzhou 310027, China.
J Clin Med. 2022 Jul 23;11(15):4289. doi: 10.3390/jcm11154289.
Background: Little is known about the clinical characteristics of idiopathic condylar resorption (ICR). The aim of this study was to examine the signs and symptoms of temporomandibular dysfunction (TMD) and evaluate the morphological characteristics of the condyles in patients with ICR. Methods: Sixty patients with ICR (41 in the bilateral ICR group and 19 in the unilateral ICR group) and forty-one healthy controls were examined. Signs and symptoms of TMD were described, and three-dimensional models of the condyles were measured and analyzed. Results: In total, 81.7% of ICR patients had self-reported symptoms and 78.3% of ICR patients had objective-found signs. The anteroposterior diameter, transverse diameter, height, maximal sectional area, volume of the condyles, axial angle, and the distance from the posterior point of the condyle to the Saggittal standard line were significantly smaller in the ICR condyles compared with the controls (p < 0.05). The condylar neck angle was significantly larger in the ICR condyles compared with the controls (p < 0.05). Conclusions: Most patients with ICR had signs and symptoms of TMD. The prevalence of clicking and opening−closing deviation was significantly different between the bilateral and the unilateral ICR groups. In patients with ICR, the size of the condyles decreased significantly; the condyles also rotated inward, moved forward, and inclined posteriorly.
关于特发性髁突吸收（ICR）的临床特征知之甚少。本研究的目的是检查颞下颌关节紊乱病（TMD）的体征和症状，并评估ICR患者髁突的形态特征。方法：对60例ICR患者（双侧ICR组41例，单侧ICR组19例）和41名健康对照者进行检查。描述TMD的体征和症状，并对髁突的三维模型进行测量和分析。结果：总体而言，81.7%的ICR患者有自我报告的症状，78.3%的ICR患者有客观发现的体征。与对照组相比，ICR患者髁突的前后径、横径、高度、最大截面积、体积、轴角以及髁突后点到矢状标线的距离显著更小（p < 0.05）。与对照组相比，ICR患者髁突的髁颈角显著更大（p < 0.05）。结论：大多数ICR患者有TMD的体征和症状。双侧和单侧ICR组之间弹响和开闭偏斜的发生率有显著差异。在ICR患者中，髁突尺寸显著减小；髁突还向内旋转、向前移动并向后倾斜。
