本文报告猴前牙根管开放术后X线片和组织病理学对比观察结果。将2只猴的前牙行根管开放,术后26和60天致死,照X线片后制作切片,光镜观察。结果表明,X线片上显示尖周病变,组织病理学检查也见尖周病变;X线片上未显示尖周病变组织病理学检查发现根管开放术后36天有54.54％、术后60天有85.71％的牙形成了尖周炎症,其形成率和炎症程度,都有随时间延长而不断升高和加重的趋势。 This article reports the results of X-ray films and histopathology of open anterior root canal of monkey. The anterior root canal of 2 monkeys was opened. After 26 and 60 days, they were killed. According to X-ray film, they were sliced ​​and observed with light microscope. The results showed that the X-ray film showed apical lesions, histopathological examination also see the periapical lesions; X-ray showed no apical lesions Histopathology examination revealed open root canal surgery 36 days after 54.54%, 60 days after 85.71% of the teeth formed periapical inflammation, the formation rate and degree of inflammation, there is a trend of increasing and increasing with time.