方法用FR根充糊剂对慢性牙髓炎和（或）慢性根尖炎的患牙进行一次性根管治疗。
Method Root canals of chronic pulpitis and (or) apicitis were filled using the FR paste.
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：探讨慢性根尖周炎的x线诊断与临床病理诊断之间的关系。
OBJECTIVE: To study the comparison of X-ray diagnosis and clinic pathology diagnosis of chronic periapical periodontitis.
目的：比较奥硝唑碘仿糊剂和碘仿糊剂治疗乳牙慢性根尖周炎疗效的差异。
Objective: To compare the difference of effects between the ornidazole-iodoform past and the iodoform past on treatment of deciduous teeth chronic periapical periodontitis.
结论碘甲糊剂是较理想的治疗慢性根尖周炎的一次法根充糊剂。
Conclusion Indoform clont cataplasm is relatively ideal for the one time root canal infilling for chronic periapical periodontitis.
目的：探讨替硝唑复合糊剂和甲醛甲酚液对慢性根尖周炎根管治疗期间急症的疗效差异。
Objective: To observe the effects of tinidazole composite cataplasm and formaldehyde cresol solution on the incidence of acute inflammation in root canal treatment of chronic periodontitis patients.
随机选择急慢性根尖周炎患者，记录患者用药前各项临床体征。
Patients with acute or chronic apical periodontitis were randomly selected, and their symptoms were recorded before treatment.
目的探讨慢性根尖周炎的有效的治疗方法。
Objective Inquiry into the chronic root for sharp week valid treatment method of the inflammation.
结论三联药物糊剂一次性治疗慢性根尖周炎可达到常规多次治疗法同等疗效。
Conclusion The curative effect of Tri-medicament paste in one-time treatment for chronic periapical periodontitis can reach the same curative effect as regular many-time therapy.
结论：奥硝唑碘仿糊剂治疗乳牙慢性根尖周炎的疗效优于碘仿糊剂。
Conclusion: the effects of the ornidazole-iodoform past were better than the iodoform past's on the treatment of deciduous teeth chronic periapical periodontitis.
慢性牙周炎厌氧菌的检出率为100％，而慢性根尖周炎厌氧菌的检出率为97％，需氧菌的检出率为3％。
Rate of bacteria isolition in chronic periodontitis and chronic periapical are 100% and 97%, aerobes is 3%.
目的：评价慢性根尖周炎一次性根管治疗的临床效果和可靠性。
Objective: To investigate the effect of single-visit root canal treatment (RCT) on teeth with chronic apical periodontitis using contemporary technique of canal cleaning, shaping and obturation.
方法对98例患慢性根尖周炎的老年人在接受根管治疗或空管药物疗法2～10年后的116颗牙进行复查；以周期治疗的80例中青年人的100颗同类牙作对照复查。
Methods 116 teeth from 98 elderly and 100 teeth from 80 young patients were reexamined, which had received root canal therapy 2 to 10 years ago.
目的探讨活性玻璃陶瓷（BGC）为主要成分配制成根管充填剂治疗慢性根尖周炎的疗效。
Objective To investigate the effects of the paste of the bioactive glass ceramics(BGC paste)on treating chronic periapical periodontitis.
根尖周组织中以慢性炎细胞浸润为主，未见有微生物。
Infiltration of chronic inflammation cell was discovered in periapical tissues with no microorganism observed.
目的：探讨慢性根尖周炎患者进行一次性根管治疗术的急性发作原因和预防措施。
Objective To evaluate and compare the efficacy of calciun hydroxide or formocresol as an intracanal medicament in root canal therapy of periapical periodontitis teeth.
结论严格掌控适应症，一次性根管充填可以进行慢性牙髓炎及慢性根尖周炎的治疗。
Conclusions One-time root canal filling can be applied in the treatment of chronic pulpitis and periapical periodontitis with a strict control of indications.
目的探讨一次性根管充填治疗慢性牙髓炎、根尖周炎的方法和效果。
Objective To discuss the method and effect of one-time root canal filling in treating chronic pulpitis and chronic periapical periodontitis.
目的探讨一次性根管充填治疗慢性牙髓炎、根尖周炎的方法和效果。
Objective To discuss the method and effect of one-time root canal filling in treating chronic pulpitis and chronic periapical periodontitis.
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