多项选择题

A.牙龈卟啉单胞菌(porphyromonas gingivalis,Pg)
B.福塞类杆菌(bacteroides forsythus,Bf)
C.伴放线聚集杆菌(aggregatibacter actinomycetemcomitans,Aa)
D.核梭杆菌(fusobacterium nucleatum,Fn)
E.牙密螺旋体(treponema denticola,Td)