Effect of Oxidized Regenerated Cellulose on Vestibular Sulcus Depth After Clark Vestibuloplasty

August 12, 2026 updated by: Can Berk Arig, Izmir Katip Celebi University

The Effect of Using Oxidized Regenerated Cellulose Material in Addition to the Standard Clark Vestibuloplasty Technique on Increasing Vestibular Sulcus Depth

This randomized controlled clinical study will evaluate whether the use of oxidized regenerated cellulose (Reoxcel Sigma Knit) in addition to standard Clark vestibuloplasty improves vestibular sulcus depth and patient comfort in individuals with insufficient vestibular depth. A total of 36 participants will be assigned to either Clark vestibuloplasty with oxidized regenerated cellulose or standard Clark vestibuloplasty with periodontal dressing. Vestibular sulcus depth and keratinized gingival tissue will be assessed before treatment and at 1 and 3 months after surgery. Postoperative pain and analgesic use will also be evaluated during the first 7 days after surgery.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

36

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 Contact

Study Locations

  • Turkey (Türkiye)
    • Çiğli
      • Izmir, Çiğli, Turkey (Türkiye), 35620
        • Recruiting
        • Izmir Katip Celebi University
        • Contact:
        • Principal Investigator:
          • Can Berk Arığ, Research Assistant
        • Sub-Investigator:
          • Mehmet Sağlam, Professor

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
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Systemically healthy
  • Non-smoker
  • Insufficient vestibular sulcus depth
  • No regular medication use
  • Age 18 years or older
  • No previous vestibuloplasty in the same region
  • Not pregnant or breastfeeding
  • Willing to participate and able to provide written informed consent

Exclusion Criteria:

  • Presence of a systemic disease
  • Regular use of systemic medication
  • Pregnancy or lactation
  • Smoking or alcohol use
  • Previous vestibuloplasty in the same region

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: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Clark Vestibuloplasty + Oxidized Regenerated Cellulose
Participants in this arm will undergo standard Clark vestibuloplasty. In addition, oxidized regenerated cellulose (Reoxcel Sigma Knit) will be applied over the surgical wound in a double layer and secured with sutures.
Device: Oxidized Regenerated Cellulose (ORC)
Oxidized regenerated cellulose (Reoxcel Sigma Knit, 5 × 7.5 cm) will be applied in a double layer over the exposed gingival wound surface following standard Clark vestibuloplasty. The material will be secured with 4-0 polyglycolide-lactide sutures using crossed and simple suturing techniques.
Active Comparator: Standard Clark Vestibuloplasty
Participants in this arm will undergo standard Clark vestibuloplasty. Following surgery, the exposed gingival wound surface will be covered with a periodontal dressing (Coe-Pak) without the application of oxidized regenerated cellulose.
Device: Periodontal Dressing
Periodontal dressing (Coe-Pak) will be applied over the exposed gingival wound surface following standard Clark vestibuloplasty. The dressing will cover the surgical site during the postoperative healing period.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Vestibular Sulcus Depth
Time Frame: Baseline, 1 month, and 3 months after surgery
Vestibular sulcus depth will be measured using a UNC-15 periodontal probe from the gingival margin to the deepest point of the vestibular sulcus. Measurements will be recorded before surgery and repeated at follow-up visits to evaluate the change in vestibular sulcus depth.
Baseline, 1 month, and 3 months after surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Postoperative Pain Assessed by Visual Analog Scale (VAS)
Time Frame: Daily for 7 days after surgery
Postoperative pain intensity will be assessed using a Visual Analog Scale ranging from 0 (no pain) to 10 (unbearable pain). Participants will record their pain score daily after surgery.
Daily for 7 days after surgery
Postoperative Pain Assessed by Wong-Baker Faces Pain Rating Scale
Time Frame: Daily for 7 days after surgery
Postoperative pain will be assessed using the Wong-Baker Faces Pain Rating Scale, which consists of six facial expressions ranging from a happy face representing no pain to a distressed face representing the worst pain. At the end of each day, participants will select the face that best represents the pain they experienced that day.
Daily for 7 days after surgery
Postoperative Analgesic Consumption
Time Frame: Daily for 7 days after surgery
Participants will record the number of analgesic tablets taken each day after surgery. Total analgesic consumption will be used to compare postoperative discomfort between the study groups.
Daily for 7 days after surgery

Collaborators and Investigators

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

Sponsor

Izmir Katip Celebi 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)

April 9, 2026

Primary Completion (Estimated)

June 30, 2027

Study Completion (Estimated)

July 30, 2027

Study Registration Dates

First Submitted

August 12, 2026

First Submitted That Met QC Criteria

August 12, 2026

First Posted (Actual)

August 17, 2026

Study Record Updates

Last Update Posted (Actual)

August 17, 2026

Last Update Submitted That Met QC Criteria

August 12, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2026-KAE-0058

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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