Methods Samples of subgingival plaque were detected by 3 kinds of oligonucleotide DNA probe from 60 sites of CP patients and 10 healthy sites of 10 healthy people.

• 方法利用3种寡核苷酸探针对60例慢性牙周炎患者60个患病位点、10例健康人的10个健康对照位点龈下菌斑中的牙龈卟啉单胞菌、福赛类杆菌、牙密螺旋体进行检测。