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Evaluation of the Effect of Streptococcus Salivarius K12 Probiotic in the Treatment of Periodontitis

Evaluation of the Effect of Streptococcus Salivarius K12 Probiotic in the Treatment of Periodontitis: a Randomized Controlled Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06871540
Enrollment
30
Registered
2025-03-12
Start date
2023-10-01
Completion date
2024-06-30
Last updated
2025-03-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Periodontitis Stage III, Probiotic

Keywords

Microbiology, Periodontitis, Probiotics, Cytokines

Brief summary

Aims: The use of oral probiotics as an adjunct to the treatment of periodontal diseases is known to be beneficial in antagonizing pathogenic microflora and regulating the host immune response. The aim of this clinical study was to evaluate the clinical, microbiologic and biochemical effect of Streptococcus salivarius (S. salivarius) K12 probiotic tablet as an adjunct to scaling and root planing (SRP) treatment in stage 3 periodontitis patients. Methods: The study included 30 systemically healthy stage 3 periodontitis patients. After non-surgical periodontal treatment, participants were randomly assigned to the test (SRP+Probiotic, n=15) or control (SRP, n=15) group. Patients in the test group used probiotic tablets once daily for 30 days. Clinical (Plaque index (PI), gingival index (GI), bleeding on probing (BOP), probing depth (PD), clinical attachment level (CAL)), microbiological (Porphyromonas gingivalis, Treponema denticola, Tannerella forsythia, Prevotella intermedia, Aggregatibacter actinomycetemcomitans, Fusobacterium nucleatum) and biochemical (IL-6, IL-8, IL-10) measurements were performed at baseline (before SRP), 30. and 90th days. Data were analyzed statistically. Keywords: Microbiology, Periodontitis, Probiotics, Cytokines

Interventions

Patients in the test group were instructed to take one tablet immediately after tooth brushing (before bedtime) once daily for 30 consecutive days. Probiotic was administered in tablets containing 1x109 cfu/g S. salivarius K12.

Patients in the control group received non-surgical periodontal treatment only.

Sponsors

AYŞENUR ŞAHİN
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

* Male or female aged 18-60 years, * No systemic disease, * No periodontal treatment in the last 6 months, * No antibiotic therapy in the last 6 months, * Diagnosed with stage 3 periodontitis according to the 2017 periodontal disease classification

Exclusion criteria

* Periodontal treatment within sixteen months, * Smoking, * Patients with systemic health problems such as diabetes, rheumatoid arthritis, neurological diseases, lung and kidney diseases, * Pregnancy or lactation, * Acute oral lesions or necrotizing ulcerative periodontitis.

Design outcomes

Primary

MeasureTime frame
Reduction in Porphyromonas gingivalis at 3 monthsFrom enrollment to the end of treatment at 12 weeks

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026