Darkfield microscopic spirochete count in the differentiation of endodontic and periodontal abscesses,10.1016/S0099-2399(06)81376-2,Journal of Endodon

• ...Spirochaetes are present in elevated numbers in subgingival plaque of subjects with a variety of oral diseases that include gingivitis (1 9, 25), acute necrotizing ulcerative gingivitis (ANUG) (8, 14, 1 S), juvenile periodontitis (3,28), chronic periodontitis (20, 21), rapidly progressing periodontitis (27, 29, 38), periocoronitis (6) and endodontic abscesses (43)...

B. J. Paster, et al. Phylogenetic analysis of cultivable oral treponemes from the Smibert c...