Salivary microbiota in periodontal health and disease and their changes following nonsurgical periodontal treatment

Youngkyung Ko, Eun Mi Lee, Joo Cheol Park, Man Bock Gu, Seongmin Bak, Suk Ji

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Purpose: The aims of this study were to examine the salivary microbiota in conditions of periodontal health and disease and to explore microbial changes following nonsurgical periodontal treatment. Methods: Non-stimulated saliva samples were collected from 4 periodontally healthy participants at baseline and from 8 patients with chronic periodontitis at baseline and 3 months following nonsurgical periodontal therapy. The V3 and V4 regions of the 16S rRNA gene from the DNA of saliva samples were amplified and sequenced. The salivary microbial compositions of the healthy participants and patients with periodontitis prior to and following nonsurgical treatment of periodontitis were compared based on the relative abundance of various taxa. Results: On average, 299 operational taxonomic units were identified in each sample. The phylogenetic diversity in patients with periodontitis was higher than that in healthy participants and decreased following treatment. The abundance of the phylum Spirochaetes and the genus Treponema in patients with periodontitis was 143-and 134-fold higher than in the healthy control group, respectively, but decreased significantly following treatment. The species that were overabundant in the saliva of patients with periodontitis included the Peptostreptococcus stomatisgroup, Porphyromonasgingivalis, the Fusobacterium nucleatum group, Parvimonas micra, Porphyromonas endodontalis, Filifactor alocis, and Tannerellaforsythia. The phylum Actinobacteria, the genus Streptococcaceae_xxc, and the species Streptococcus salivarius group were more abundant in healthy participants than in those with periodontitis. There was a trend toward a decrease in disease-associated taxa and an increase in health-associated taxa following treatment. Conclusions: Our results revealed differences in the taxa of salivary microbiota between conditions of periodontal health and disease. The taxa found to be associated with health or disease have potential for use as salivary biomarkers for periodontal health or disease.

Original languageEnglish
Pages (from-to)171-182
Number of pages12
JournalJournal of Periodontal and Implant Science
Issue number3
Publication statusPublished - 2020 Jun 1


  • Microbiota
  • Periodontitis
  • Porphyromonas tjintjiualis
  • Saliva
  • Treponema

ASJC Scopus subject areas

  • Oral Surgery
  • Periodontics


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