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

Clinical Evaluation of Nano-Hyaluronic Acid as an Adjunctive to Minimally Invasive Non-Surgical Technique in the Treatment of Deep Intrabony Defects: Randomized Controlled Clinical Trial

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07595757
Enrollment
28
Registered
2026-05-19
Start date
2025-07-15
Completion date
2026-08-29
Last updated
2026-05-19

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

Conditions

Periodontal Disease, Periodontitis

Brief 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

Interventions

Subgingival debridement using thin ultrasonic tips and additional instrumentation with Gracey mini-curettes, deliberately avoiding subgingival rinsing to support blood clot stabilization

BIOLOGICALnano-hyaluronic acid

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

Sponsors

Cairo University
Lead SponsorOTHER

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
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.

Secondary

MeasureTime frameDescription
Full-Mouth Plaque Score (FMPS)From enrollment to the end of treatment at 24 weeksAssessed as the percentage of sites with plaque.
Full-Mouth Bleeding Score (FMBS)From enrollment to the end of treatment at 24 weeksAssessed as the percentage of sites with bleeding upon probing.
Clinical Attachment Level (CAL)From enrollment to the end of treatment at 24 weeksMeasured in millimeters (mm) from the cemento-enamel junction to the bottom of the pocket.
Gingival Recession (GR)From enrollment to the end of treatment at 24 weeksMeasured in millimeters (mm) from the cemento-enamel junction to the gingival margin.
Radiographic Defect Angle (RDA)From enrollment to the end of treatment at 24 weeksMeasured in degrees (°).
Patient SatisfactionFrom enrollment to the end of treatment at 24 weeksAssessed via a Likert-scale questionnaire. The scale ranges from 1 to 5, where 1 indicates "Very Dissatisfied" and 5 indicates "Very Satisfied". Higher scores represent a better outcome.
Cost EffectivenessFrom enrollment to the end of treatment at 24 weeksEvaluated through a health economic analysis, measured as currency per unit effect.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 20, 2026