Adjunctive Antioxidant Effect of Centella Asiatica Nanoemulsion Gel in Management of Periodontitis

July 6, 2026 updated by: Mansoura University

Adjunctive Antioxidant Effect of Centella Asiatica Nanoemulsion Gel in the Management of Periodontitis

The aims of the current study are:

  1. Evaluation of the clinical efficacy of local delivery of nanoemulsion gel containing Centella asiatica extract as an adjunct to conventional non-surgical periodontal therapy in periodontitis patients.
  2. Evaluation of the antioxidant effect of this treatment by the assessment of nuclear factor erythroid 2-related factor 2 (NrF2) and glutathione peroxidase 1 (GPX1) in the gingival crevicular fluid (GCF) samples.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Forty-five healthy patients with periodontitis and healthy subjects with healthy periodontium will be included in the current study. At the beginning of the treatment, all selected patients will be motivated about the benefit of plaque control and periodontal prophylaxis.

The participants will be selected from the Outpatient Clinic of the Department of Oral Medicine and Periodontology, Faculty of Dentistry, Mansoura University. The patients will be informed about the treatment that they will receive and steps that will be taken. This includes the possible effects or risks and other treatment options according to the rules of the ethical committee of the Faculty of Dentistry, Mansoura University. The subjects must understand this explanation in broad terms. They must be legally competent to give written consent before performing any required steps. The research protocol will be presented to the ethical committee at the Faculty of Dentistry, Mansoura University, to get its approval.

Study Type

Interventional

Enrollment (Actual)

45

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
      • Al Mansurah, Egypt
        • faculty of dentistry Mansoura university, Mansoura, 35516

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age 25-55 years, either sex
  • Diagnosis of periodontal health OR Stage III periodontitis (per 2017 World Workshop Classification)

Exclusion Criteria:

  • Known allergy or sensitivity to any component of the study medication
  • Systemic antibiotics or anti-inflammatory medications within the preceding 6 months
  • Uncontrolled diabetes mellitus
  • Cardiovascular disease
  • Rheumatoid arthritis
  • Renal disease
  • Pulmonary disease
  • Thyroid disease
  • Malignancy
  • Current smokers
  • Pregnant or lactating women
  • Unable or unwilling to comply with prescribed oral hygiene instructions

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: group I treated with C. asiatica nanoemulsion as an adjunct to SRP
Group I (study group): 15 Patients with periodontitis Stage III will be treated with C. asiatica nanoemulsion as an adjunct to SRP.
Drug: Centella asiatica nanoemulsion gel
Following scaling and root planing, patients in Group 1 received local subgingival application of Centella asiatica nanoemulsion gel via disposable syringe with a blunt-ended cannula, applied once weekly for 3 months.
Procedure: Scaling and Root Planing (SRP)
Full-mouth scaling and root planing using ultrasonic instrumentation and Gracey curettes, plus standardized oral hygiene instructions.
Active Comparator: Group II (positive control group) treated with SRP
Group II (positive control): 15 patients with periodontitis Stage III will be treated with scaling and root planing (SRP) alone, with no adjunctive gel application.
Procedure: Scaling and Root Planing (SRP)
Full-mouth scaling and root planing using ultrasonic instrumentation and Gracey curettes, plus standardized oral hygiene instructions.
No Intervention: Group III (negative control group): no intervention
Group III (negative control/healthy control): 15 periodontally healthy participants who will receive no active periodontal intervention; assessed at baseline only

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Plaque Index
Time Frame: Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Full-mouth plaque accumulation scored at the mesial, distal, buccal, and lingual/palatal surfaces of each examined tooth on a 0-3 scale, with higher scores indicating greater plaque accumulation. The participant-level score is the average of all recorded surface scores.
Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Gingival Index
Time Frame: Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Gingival inflammation was scored at each examined surface on a 0-3 scale based on gingival color, consistency, and presence/absence of bleeding on probing, with higher scores indicating more severe inflammation (0 = clinically healthy gingiva, 3 = severe inflammation with marked redness, edema, ulceration, or spontaneous bleeding).
Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Gingival Bleeding Index
Time Frame: Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Presence or absence of bleeding recorded following gentle probing of the gingival margin at each examined site, calculated as the number of bleeding sites divided by the total number of examined sites and expressed as a percentage. Higher percentages indicate greater gingival bleeding.
Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Periodontal Probing Depth (PPD)
Time Frame: Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Distance in millimeters from the free gingival margin to the base of the periodontal pocket, measured at multiple sites per tooth using a calibrated periodontal probe. Higher values indicate deeper pockets and greater periodontal destruction.
Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Clinical Attachment Level (CAL)
Time Frame: Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)
Distance in millimeters from the cemento-enamel junction to the base of the periodontal pocket, measured at multiple sites per tooth using a calibrated periodontal probe. Higher values indicate greater loss of periodontal attachment
Baseline and 3 months (Groups 1 and 2); baseline only (Group 3)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Mansoura University

Investigators

  • Principal Investigator: Majed M Alshammari, bachelor, Faculty of Dentistry Mansoura University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 21, 2025

Primary Completion (Actual)

September 8, 2025

Study Completion (Actual)

September 8, 2025

Study Registration Dates

First Submitted

January 18, 2026

First Submitted That Met QC Criteria

July 6, 2026

First Posted (Actual)

July 13, 2026

Study Record Updates

Last Update Posted (Actual)

July 13, 2026

Last Update Submitted That Met QC Criteria

July 6, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • M0602025OM

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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