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PeriodontitisNCT05548361

The Use of Chlorhexidine and a Probiotic Lozenge in the Nonsurgical Therapy of Periodontitis

A study testing active chlorhexidine and active probiotic in people with Periodontitis and Chlorhexidine, run by Cukurova University at 1 site in Turkey (Türkiye).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study is determining the additional effect of a 2-week home usage of chlorhexidine in periodontitis patients undergoing scaling and root planing supplemented with a dual-strain probiotic lozenge. Read more about this study

Who is it for?
Ages 18 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Periodontitis, Chlorhexidine, Probiotic
What is being tested?
active chlorhexidine and active probiotic
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
90 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 Apr 2022to 1 Dec 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Diagnosed with generalized (>30% of teeth affected) periodontitisstage III and IV periodontitis, grade B or C (C only with smoker modifier) = generalized chronic periodontitis including smokers
  • A minimum of three natural teeth in each quadrant, excluding third molars
  • Willing and able to give informed consent
  • Not more than 50% of the patients in each group will be smokers.
  • Smokers should smoke between 10 to 40 cigarettes a day

Who cannot join

  • Patients with localized periodontitis or periodontitis stage I or II or grade A or grade C or grade C with diabetes modifier
  • Patients with orthodontic appliances (removable or fixed)
  • Pregnant or lactating woman
  • Patients with a history of systemic diseases that may correlate with periodontal health, such as diabetesrheumatic fever, liver or kidney disease, and neurological deficiencies
  • Patients taking medication which may affect the periodontium (bisphosphonates, phenytoin, cyclosporin, nifidepine, chronic use of non-steroidal anti-inflammatory drugs)
  • Patient who had taken systemic antibiotics up to 3 months prior to treatment or medical conditions requiring prophylactic antibiotic coverage
  • Participation in any other clinical study
  • Tobacco chewing or sniffing

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Cukurova university Faculty of Dentistry

    Adana

Other trials in Turkey (Türkiye)

About this study

The aim of this study is determining the additional effect of a 2-week home usage of chlorhexidine in periodontitis patients undergoing scaling and root planing supplemented with a dual-strain probiotic lozenge.

Being tested
active chlorhexidine and placebo probiotic, placebo chlorhexidine and active probiotic, active chlorhexidine and active probiotic
Medical subject headings
Periodontitis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • active chlorhexidine and placebo probioticCombination product

    the randomized patients will be receive active chlorhexidine rinse and placebo probiotic

  • placebo chlorhexidine and active probioticCombination product

    the randomized patients will receive placebo chlorhexidine rinse and active probiotic

  • active chlorhexidine and active probioticCombination product

    the randomized patients will receive active chlorhexidine rinse and active probiotic

Study groups in NCT05548361
Study groupRoleWhat they receive
Active ChxExperimentalThis group will receive active chlorhexidine and placebo probiotics
Receives: Combination Product: active chlorhexidine and placebo probiotic
Active probioticsExperimentalThis group will receive placeo chlorhexidine and active probiotics
Receives: Combination Product: placebo chlorhexidine and active probiotic
Active Chx & probioticsExperimentalThis group will receive active chlorhexidine and active probiotics
Receives: Combination Product: active chlorhexidine and active probiotic

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. probing pocket depth

    the distance between gingival margin and pocket base in millimeters

    Measured: 6 months

Secondary outcomes (5)
  1. percentage of patients in low risk for disease progression

    having less than 5 sites with probing pocket depth of 5 mm or more at the end of the trial.

    Measured: 6 months

  2. gingival recession

    the distance between cementoenamel junction and gingival margin in millimeters

    Measured: 6 months

  3. clinical attachment level

    the distance between cementoenamel junction and pocket base in millimeters

    Measured: 6 months

  4. full mouth bleeding and plaque score

    the scores of bleeding on probing (positive or negative)

    Measured: 6 months

  5. microbial outcomes

    pcr analysis of plaque samples (mean log10 cfg/ml)

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Sep 2022
  2. Study start1 Apr 2022
  3. Primary completion1 Dec 2024
  4. Study completion1 Dec 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05548361
Sponsor's protocol ID
CukurovaU-PerII
Status last verified
Jun 2025
First submitted
12 Sep 2022
Last updated
15 Jun 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing active chlorhexidine and active probiotic in people with Periodontitis and Chlorhexidine, run by Cukurova University at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

probing pocket depth (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Jun 2025.

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