方法：采用产色基质法鲎试验对33例根尖周炎治疗前后根管内的内毒素含量变化进行了检测。
Methods: the limulus lysate test of chromogenic substrate method was applied to detect the change of endotoxin content in 33 teeth with periodontitis before and after root canal treatment.
方法：采用产色基质法鲎试验对33例根尖周炎治疗前后根管内的内毒素含量变化进行了检测。
Methods: the limulus lysate test of chromogenic substrate method was applied to detect the change of endotoxin content in 33 teeth with periodontitis before and after root canal treatment.
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