Effect of Nano-Hyaluronic Acid in Intrabony Defects Treated With Minimally Invasive Non-Surgical Technique

NCT07595757 · tracked via the Priya Life Science Egypt tracker

Sponsor

Cairo University

Phase

Phase 1/2

Started

2025-07-15

Last updated

2026-05-19

Condition(s) studied

Periodontal DiseasePeriodontitis

Investigational drug(s) / intervention(s)

Minimally invasive non-surgical technique (MINST)nano-hyaluronic acid

Minimally invasive non-surgical technique (MINST): Subgingival debridement using thin ultrasonic tips and additional instrumentation with Gracey mini-curettes, deliberately avoiding subgingival rinsing to support blood clot stabilization

nano-hyaluronic acid: Pockets associated with intrabony defects are filled with nano-HyA paste immediately after subgingival debridement

Study summary

This randomized controlled clinical trial aims to evaluate the effectiveness of using nano-hyaluronic acid (nano-HyA) gel alongside a minimally invasive non-surgical technique (MINST) to treat deep intrabony defects in patients with Stage II and III periodontitis. While MINST is a proven method for cleaning deep periodontal pockets without the need for traditional surgery , the addition of nano-HyA may further enhance soft tissue healing, reduce inflammation, and promote regeneration. Participants in the study will be randomly assigned to one of two groups. The test group will receive the MINST procedure combined with the application of nano-HyA gel into the periodontal pocket, while the control group will receive the MINST procedure alone. The primary goal of the study is to measure the decrease in probing pocket depth over a 6-month follow-up period to determine if the adjunctive use of nano-HyA provides superior clinical and radiographic outcomes compared to non-surgical treatment alone

Eligibility

Sex

ALL

Min age

18 Years

Max age

—

Healthy volunteers

Inclusion Criteria: 1. Males and females aged ≥ 18 years. 2. Patients with a diagnosis of periodontitis (stage II or III). 3. At least one tooth with ≥5 mm PPD and CAL and evidence of radiographic bone loss. 4. Presenting with at least 1 intrabony defect, with a radiographic intra-bony component ≥3 mm. Exclusion Criteria: 1. Patients with systemic diseases. 2. Pregnant or lactating females. 3. Tobacco smokers (≥ 10 cigarettes per day). 4. Multi-rooted teeth with class II and class III furcation defects. 5. Third molars. 6. Teeth with grade III mobility. 7. Peri-apical pathology and acute abscess. 8. Non-surgical or surgical periodontal treatment in the past 12 months. 9. Prolonged treatment with antibiotics or anti-inflammatory agents within 6 months before periodontal therapy.

Primary outcome measure(s)

Pocket Depth (PD) — "From enrollment to the end of treatment at 24 weeks"
Measured in millimeters (mm) from the gingival margin to the bottom of the gingival sulcus using a UNC-15 periodontal probe. Each tooth is probed at 6 sites with a light force not exceeding 25 grams.

Trial sites (1)

Facility	City	Region	Status
Faculty of Dentistry, Cairo University	Cairo	Cairo Governorate

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07595757 on ClinicalTrials.gov ↗ ← All trials in Egypt