华西口腔医学杂志

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3种寡核苷酸探针对龈下菌斑中牙周致病菌的检测

张贤华,张斌,吴织芬   

  1. 610041 四川大学华西口腔医院牙周科(张贤华),第四军医大学基础部生物化学与分子生物学教研室(张 斌),第四军医大学口腔医院牙周科(吴织芬)
  • 收稿日期:2003-08-25 修回日期:2003-08-25 出版日期:2003-08-20 发布日期:2003-08-20

Distribution of 3 Kinds of Periodontal Pathogens in Subgingival Plaques of Patients with Chronic Periodontitis

ZHANG Xianhua*,ZHANGBin,WUZhifen.   

  1. *Department ofPeriodontics,West China College ofStomatology,Sichuan Uni- versity,Chengdu610041,China
  • Received:2003-08-25 Revised:2003-08-25 Online:2003-08-20 Published:2003-08-20

摘要:

目的 采用寡核苷酸探针研究龈下菌斑中3种牙周致病菌的分布。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。结果 牙周炎位点龈下菌斑中的牙龈卟啉单胞菌、福赛类杆菌、牙密螺旋体的检出率分别为91·67%,90·00%和95·67%,明显高于健康对照位点;有83·33%的牙周炎位点同时检出3种致病菌,3种细菌检出情况为两两正相关(P<0·01)。结论 牙龈卟啉单胞菌、福赛类杆菌、牙密螺旋体在慢性牙周炎患者龈下菌斑中的检出率很高,它们间可能存在相互协同致病作用。

关键词: 牙周炎, 牙龈卟啉单胞菌, 福赛类杆菌, 牙密螺旋体, 寡核苷酸探针

Abstract:

Objective To observe the prevalence ofPorphyromonas gingivalis(Pg),Treponema denticola(Td) andBac- teridesforsythus(Bf) subgingivally in diseased sites of chronic periodontitis (CP) patients.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 peo- ple.Results The positive rates ofPg,BfandTdin patients were 91·67%, 90·00% and 95·67% respectively;Pg,Bfand Tdwere detected simultaneously in 83·33% patients andPg,BfandTdwere found to be related with each other(P<0·01). Conclusion Pg,BfandTdwere prominent periodontopathic bacteria and related each other, might exist in complexes in sub- gingival plaque and coaggretate together.

Key words: periodontitis, Porphyromonas gingivalis, Treponema denticola, Bacteridesforsythus, oligonucleotide DNA probe