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NCT Number: NCT06601608

Efficacy of Locally Delivered Rosemary Extract Gel in Management of Periodontitis

Rosemary extract is known for its antibacterial, anti-inflammatory and anti-oxidant properties that make it a promising therapeutic aid as a local delivery drug in deep periodontal pockets in adjunct to non-surgical periodontal therapy in management of periodontitis. These properties are due to the high content of phenolic compounds such as carnosic acid, urolic acid, rosmarinic acid or chlorogenic acid. Rosemary extract was previously investigated and proved its effectiveness against periodontopathogens in-vitro. Thus, its selected for this study to be administered in a gel form to assess its efficacy in management of periodontitis.

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Key information

Conditions

Periodontitis (Stage 3) Mouth Diseases Periodontal Diseases Periodontal Pocket Periodontitis Stomatognathic Diseases

Age range

25 year–45 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Faculty of Dentistry - Ain Shams University

Cairo, 02, Egypt

About this study

Forty eight patients with deep periodontal pockets more than 5 mm will be randomly assigned into 2 equal groups. The test group will receive the rosemary extract gel in adjunct to non-surgical periodontal therapy, while the control group will receive placebo gel.

Clinical evaluation of the clinical parameters including probing depth, gingival index, plaque index and clinical attachment level will be recorded.

Microbiological analysis using PCR test will be performed using perio-papers.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Both genders aged between 25-45 years.
  • Healthy adult patients as evidenced by Burket's oral medicine health history questionnaire.
  • Stage III grade B periodontitis with at least two non-adjacent sites in posterior teeth with PD ≥ 6 mm, CAL ≥ 5 mm showing BOP and ≤ 4 teeth lost due to periodontitis.
  • Patients ready to comply with oral hygiene measures.

Exclusion criteria

  • Smokers.
  • Pregnant or lactating females.
  • Drug abusers.
  • Patients taking antibiotics or performed any periodontal treatment in the previous 6 months.
  • Patients who have a known allergy or hypersensitivity to rosemary, its constituents, or other members of the Lamiaceae family.
  • Patients with parafunctional habits.

Treatment and study plan

Herbal therapy

Drug

rosemary extract gel is used for the first time as a local drug delivery as an adjunct to non-surgical periodontal therapy in management of stage III periodontitis patients.

Other names: rosemary extract gel, local delivery drug, phytotherapy

Placebo drug

Drug

a placebo gel will be applied in deep pockets (>5mm) in stage III periodontitis patients as an adjunct to non-surgical periodontal therapy

Primary outcomes

  1. probing depth

    Time frame: change from baseline at 3 months

    Will be measured from the gingival margin to the bottom of the periodontal pocket to the nearest mm. with use of UNC 15 periodontal probe.

Secondary outcomes

  1. clinical attachment level, plaque index and gingival index

    Time frame: change from baseline at 3 months

    • Clinical attachment level (CAL): Will be measured from the CEJ to the depth of the periodontal pocket in millimeters.
    • Plaque index:

    0 = No plaque in gingival area.

    • = A film of plaque adhering to the free gingival margin and adjacent area of tooth.

    The plaque may be recognized only by running a probe across the tooth surface.

    • = Moderate accumulation of soft deposit within the gingival pocket and on the gingival pocket and on the gingival margin and/or adjacent tooth surface that can be seen by naked eye.
    • = Abundance of soft matter within the gingival pocket and/or on the gingival margin and adjacent tooth surface.
    • Gingival index:

    0 = Normal gingiva

    • = Mild inflammation - slight edema. No bleeding on probing
    • = Moderate inflammation -redness, edema and glazing. Bleeding on probing.
    • = Severe inflammation - marked redness and edema. Ulceration. Tendency to spontaneous bleeding

  2. microbiological analysis

    Time frame: The bacterial load in the GCF sample will be assessed at baseline, 1 week and 1 month post-operatively.

    Microbiological analysis to evaluate the antibacterial effect of rosemary extract gel on quantitative change of P.gingivalis and A.actinomycetemcomitans in the gingival crevicular fluid (GCF) using perio-papers.

    Analyzed samples will be done using real time PCR technique.

Sponsors and collaborators

Lead sponsor

Ain Shams University

Other

Registry information

Official study title

Efficacy of Locally Delivered Rosemary Extract Gel as an Adjunct to Non-Surgical Periodontal Therapy in Management of Periodontitis (A Randomized Controlled Clinical Trial With Microbiological Analysis)

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Sep 19, 2024
Registry last updated
Apr 13, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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