Lederman K H, Clayton J A
J Prosthet Dent. 1982 Mar;47(3):303-9. doi: 10.1016/0022-3913(82)90160-3.
Fifty subjects restored with fixed restorations were examined by means of pantographic tracings and the PRI in order to determine the prevalence of TMJ dysfunction. In addition to the prevalence of dysfunction, the PRI categorized subjects as to the degree of dysfunction and clinical and subjective symptoms were related to the varying degrees of dysfunction. There were positive relationships (X)2 between the PRI categories and any dysfunction and many of the variables at the 0.1 level. There were positive correlations (Spearman R) at the 0.5 level between PRI categories and any level of TMJ dysfunction and many variables. The absence of clinical symptoms did not always indicate the absence of dysfunction as determined by the PRI.
为了确定颞下颌关节功能障碍的患病率，对50例接受固定修复的受试者进行了下颌运动描记图描记和PRI检查。除了功能障碍的患病率外，PRI还对受试者的功能障碍程度进行了分类，并将临床和主观症状与不同程度的功能障碍相关联。PRI类别与任何功能障碍以及许多变量在0.1水平上存在正相关关系（X）2。PRI类别与任何程度的颞下颌关节功能障碍以及许多变量在0.5水平上存在正相关（Spearman R）。PRI确定，没有临床症状并不总是表明没有功能障碍。
