NCT07162207

Bi-layer Collagen Membrane Versus Subepithelial Connective Tissue Graft in the Treatment of Localized Gingival Recession

Modified Pinhole Surgical Technique Using Bi-layer Collagen Membrane Versus Subepithelial Connective Tissue Graft in the Treatment of Localized Gingival Recession: A Randomized Clinical Trial

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 18 (actual)
• Sponsor: Ain Shams University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

The goal of this clinical trial is evaluation of the change in depth and width of gingival recession in terms of gingival thickness and esthetics, and evaluation of patient satisfaction in terms of postoperative pain and final esthetic appearance. The study will be conducted on twelve Egyptian healthy patients with localized gingival recession. Researchers will compare clinical effectiveness of collagen membrane to connective tissue graft in treatment of localized gingival recession. The study hypothesis is that no difference exists between Bilayer collagen membrane combined with Pinhole approach and CT graft combined with Pinhole approach used for root coverage in treatment of localized gingival recession.

Detailed description

Twenty patients with localized gingival recession were randomly assigned into two equal groups. The control group received treatment with modified Pinhole surgical approach using connective tissue graft material, while the comparison group received treatment with Pinhole surgical approach using collagen membrane. Patients were followed up after 3 and 6 months from treatment.

Conditions

• Gingival Recession, Localized

Interventions

Type	Name	Description
PROCEDURE	Pinhole surgical technique	A pinhole is created in the site of recession, the grafting material (Bi-layer collagen membrane versus connective tissue graft) is trimmed to fit the size of the recession defect, followed by graft insertion in the tunnel.

Timeline

• Start date: 2024-06-01
• Primary completion: 2026-04-30
• Completion: 2026-12-01
• First posted: 2025-09-09
• Last updated: 2026-04-09

Locations

1 site across 1 country: Egypt