研究放射性核素三相骨显像对颞颌关节紊乱综合征的早期诊断价值。方法　采用常规前位及张口上仰位对 2 2例颞颌关节综合征患者进行了三相骨显像。结果　常规前位及张口上仰位三相骨显像对颞颌关节紊乱综合征的阳性检出率分别为 70 .83%、87.50 %。张口上仰位三相骨显像患健侧颞颌关节放射性比值在血流相对峰值比为 1 .53± 0 .2 9,在延迟相时为 1 .57±0 .2 3,与常规前位采集均有显著性差异 ( P <0 .0 1 )。结论　张口上仰位三相骨显像能早期诊断颞颌关节紊乱综合征 To study the early diagnostic value of radionuclide three-phase bone imaging in the diagnosis of temporomandibular joint disorder. Methods Twenty-two cases of temporomandibular joint syndrome patients underwent three-phase bone scintigraphy with conventional anterior and upper mouth open position. Results The positive detection rates of conventional anterior and three-phase bone scans on the upper third of the mouth were 70.83% and 87.50% respectively. The ratio of the radioactive ratio of the contralateral temporomandibular joint to the three-phase bone scintigraphy in the upper Yang position was 1.53 ± 0.29 in the delayed phase, 1.57 ± 0.23 in the delayed phase, Bit collection were significant differences (P <0. 01). Conclusions The three-phase imaging of the upper third of the mouth can diagnose the temporomandibular joint disorder syndrome early