Figure 1.
(A) Frequency of detection and (B) copy numbers of 16S rRNA gene of total bacteria and P. gingivalis, and Hsp60 gene of P. endodontalis in total ALEOs (n = 64) including AALEOs (n = 29) and SALEOs (n = 35). ALEOs Apical lesions of endodontic origin; AALEO asymptomatic apical lesions of endodontic origin; SALEOs symptomatic apical lesions of endodontic origin. *p < 0.05.