Objective To provide bacteriological basis for curing infected root canals with sensitive drugs.
目的为临床应用敏感药物治疗感染根管提供细菌学依据。
Objective To observe the antibacterial effect of calcium hydroxide in sterilization of infected root canals.
目的观察氢氧化钙对感染根管消毒的抗菌效果。
Methods We have made bacterial cultivation for 56 cases with infected root canals and drug sensitive test with agar dilution.
方法对5 6例感染根管进行细菌培养，并用琼脂稀释法，对细菌进行药敏试验。
The result showed that metronidazole paste was effective in treating infected root canals, and ineffective in treating chronic apical periodontitis.
结果表明，甲硝唑糊剂可以作为一种根管充填剂使用。
Objective To evaluate the bactericidal effect for anaerobes of infected root canals using Chinese medicine agent Jieeryin combing with ultrasonic technique.
目的评价中药制剂洁尔阴与超声波联合应用杀灭感染根管内厌氧菌的效果。
OBJECTIVE To study the colonization of Black-pigmented bacteria(BPB)in infected root canals and discuss the correlation between Black-pigmented bacteria and clinical symptoms in chronic periodontitis.
目的：了解感染根管内产黑色素类杆菌（BPB）的定植情况，进一步探讨BPB与慢性根尖周炎临床症状的相关性。
OBJECTIVE To study the colonization of Black-pigmented bacteria(BPB)in infected root canals and discuss the correlation between Black-pigmented bacteria and clinical symptoms in chronic periodontitis.
目的：了解感染根管内产黑色素类杆菌（BPB）的定植情况，进一步探讨BPB与慢性根尖周炎临床症状的相关性。
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