目的：研究伴放线菌放线杆菌在牙周炎患者和健康人龈下菌斑中的分布。

Objective: To determine the distribution of Actinobacillus actinomycetemcomitans (Aa) in subgingival plaques in the patients with chronic periodontitis(CP).

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方法：利用合成的寡核苷酸探针对60例慢性牙周炎患者60患病位点、10例健康人的10个对照位点龈下菌斑中伴放线菌放线杆菌进行检测。

Methods: Samples of subgingival plaque were detected for Aa distribution by oligonucleotide probe from 60 sites of CP patients and 10 healthy sites of healthy people.

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