Schiffman E L, Anderson G C, Fricton J R, Lindgren B R
Department of Diagnostic and Surgical Sciences, School of Dentistry, University of Minnesota, Minneapolis 55455.
J Dent Res. 1992 Nov;71(11):1812-5. doi: 10.1177/00220345920710110901.
Temporomandibular joint internal derangement (TMJ ID) is the most common intra-articular TM disorder and can progress from TMJ ID with reduction to TMJ ID without reduction. It is not known whether this anatomical progression is associated with increasing levels of mandibular dysfunction. The objective of this study was to determine whether the level of clinically detectable mandibular dysfunction was related to the stage of TMJ ID. Two clinicians examined 42 subjects prior to bilateral TMJ arthrographic evaluation. The level of mandibular dysfunction was calculated by Helkimo's Clinical Dysfunction Index (Di) and the Craniomandibular Index (CMI). Statistical analysis revealed that the level of mandibular dysfunction as determined by the Di and CMI was not related to the arthrographic presence or absence of TMJ ID. Therefore, the clinician cannot assume that the level of mandibular dysfunction is directly related to the absence or presence of TMJ ID. Epidemiologically, the CMI and Di can be used only for estimation of the degree of mandibular dysfunction, since they do not provide direct information on a specific TM disorder.
颞下颌关节内紊乱（TMJ ID）是最常见的关节内颞下颌疾病，可从可复性TMJ ID发展为不可复性TMJ ID。目前尚不清楚这种解剖学进展是否与下颌功能障碍程度的增加有关。本研究的目的是确定临床可检测到的下颌功能障碍水平是否与TMJ ID的阶段相关。两名临床医生在双侧颞下颌关节造影评估前检查了42名受试者。下颌功能障碍水平通过Helkimo临床功能指数（Di）和颅下颌指数（CMI）计算得出。统计分析表明，由Di和CMI确定的下颌功能障碍水平与造影检查中TMJ ID的有无无关。因此，临床医生不能认为下颌功能障碍水平与TMJ ID的有无直接相关。从流行病学角度来看，CMI和Di仅可用于估计下颌功能障碍的程度，因为它们不能提供关于特定颞下颌疾病的直接信息。
