Detection of Treponema denticola in saliva obtained from patients with various periodontal conditions.

The aim of the study was to determine the prevalence of Treponema denticola in saliva of periodontally diseased and healthy patients and its relationship with the periodontal status. A 16S rRNA-based polymerase chain reaction detection method was used to determine the prevalence of T. denticola in whole saliva samples from patients with chronic periodontitis (CP, n = 37), aggressive periodontitis (AgP, n = 24), and healthy subjects (n = 28).