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CompletedNCT06821425Updated Aug 29, 2025

Melatonin Gel as an Adjuvant in the Surgical Management of Intrabony Defects

A Phase 4 interventional study of Melatonin gel mixed with xenograft and Xenograft in Periodontal Disease, AVDC Stage 3, sponsored by Ain Shams University. Completed at 1 site in Egypt. Open to participants aged 35 Years to 55 Years. Per ClinicalTrials.gov, last updated 2025-08-29.

Sponsored by Ain Shams University · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
35 Years to 55 Years
Sex
All
01

Study summary

Surgical periodontal therapy is a commonly employed treatment approach aimed at arresting disease progression and promoting tissue regeneration. Despite advancements in surgical techniques, adjunctive therapies are being explored to enhance the outcomes of periodontal surgical debridement. Melatonin, a hormone primarily known for its role in regulating the sleep-wake cycle, has emerged as a promising candidate for periodontal therapy. It possesses potent antioxidant, anti-inflammatory, and immunomodulatory properties, which make it an attractive therapeutic agent for treating periodontitis. Additionally, melatonin has been linked to bone metabolism, with evidence suggesting its involvement in bone formation and remodeling processes. Bone regeneration is a vital aspect of periodontal therapy, as the restoration of lost osseous structures is crucial for long-term stability of affected teeth. Previous studies have suggested that melatonin may exert positive effects on bone formation by promoting osteoblast differentiation, stimulating matrix synthesis, and inhibiting osteoclast activity. However, limited research has been conducted to specifically evaluate its influence on bone regeneration in the context of surgical periodontal flap therapy.

02

Conditions studied

  • Periodontal Disease, AVDC Stage 3

Keywords

  • Stage III periodontitis
  • Melatonin gel
  • Xenograft
03

In context

Periodontal Diseases

830 studies on the registry are indexed under Periodontal Diseases; 188 are open to participants now.

This study's enrollment of 20 is below the median of 45 across 530 interventional studies indexed under Periodontal Diseases.

Browse Periodontal Diseases studies →

Lead sponsor

Ain Shams University is the lead sponsor of 1,876 studies on the registry; 423 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
35 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Both genders within age range of 35-55 years.
  2. Patients diagnosed with periodontitis Stage III (Caton et al., 2018; Papapanou et al., 2018).

    Test site criteria: (probing pocket depth ≥6mm and CAL ≥5mm and 3-wall intrabondy defect). All these criteria will be determined after phase I conventional periodontal therapy.

  3. Patients with three-wall intrabony defects.
  4. Systemically free patients as evidenced by Burket's oral health history questionnaire (Glick et al., 2008)
  5. Ability to attend the treatment sessions and comply with the procedures, recall visits and oral hygiene measures.

Exclusion criteria

Exclusion Criteria:

  1. Smokers. (Reynolds et al., 2015)
  2. Drug abusers.
  3. Pregnant or lactating females.
  4. Patients under any medication that affect periodontal healing.
  5. Vulnerable individuals.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Melatonin gel with Xenograft group

    Ten patients with stage III periodontitis with vertical bone defects will be subjected to application of particulate xenograft mixed with 5% melatonin gel.

    Drug: Melatonin gel mixed with xenograft

  • Active comparator
    Xenograft Only group

    Ten patients with stage III periodontitis with vertical bone defects will be subjected to application of particulate xenograft alone.

    Other: Xenograft

Interventions

  • DrugMelatonin gel mixed with xenograft

    This study will be conducted to evaluate the effect of melatonin (5% gel) when used as an adjunct to xenograft for the surgical management of intrabony periodontal defects.

  • OtherXenograft

    Application of Xenograft alone for the surgical management of intrabony periodontal defects.

06

What researchers measure

Primary outcomes

  1. - Radiographic evaluation of the changes in the intrabony defect

    The amount of bone gain in millimeters in follow up radiograph compared to preoperative radiograph

    Time frame: 6 months

Secondary outcomes

  1. Clinical evaluation of the changes in periodontal parameters

    The amount of reduction in Probing pocket depth (PD) in mm The new level of clinical attachment (CAL) in relation the CEJ in mm

    Time frame: Baseline and 6 months

  2. Evaluation of surgical wound healing

    Early Healing Index (EHI) to assess the quality of a wound in the days or weeks following a procedure, developed by Wachtel et al. to evaluate flap closure, the presence and amount of fibrin (a blood clot component), and the degree of tissue necrosis. A lower EHI score (such as 1-3) indicates better, complete healing, whereas higher scores (e.g., 4-5) suggest incomplete or poor healing.

    Time frame: 1 and 2 weeks after surgery.

07

Study locations

1 site
  • Faculty of Dentistry, Ain Shams University
    Cairo, 11511, Egypt
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 29, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06821425
Lead sponsor
Ain Shams University
Responsible party
Muhammad Abdelnasser Ali Elnaggar (Principal investigator, Ain Shams University) — Principal investigator
First posted
Feb 12, 2025
Start date
Jan 1, 2025
Primary completion
Aug 1, 2025
Completion
Aug 1, 2025
Last update
Aug 29, 2025

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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