Skip to main content
OpenTrials
Completed

NCT Number: NCT07204717

Ring Free Gingival Techniqea

Objective Peri-implant keratinized mucosa deficiency is a significant factor affecting implant success. Therefore, it is crucial to choose a suitable technique for increasing the width of the keratinized mucosa. This study aims to compare two different approaches of free gingival graft (FGG) application in the treatment of insufficient peri-implant keratinized mucosa and to determine the most effective and predictable technique.

Materials and Methods A total of 38 systemically healthy patients with ≤2 mm of keratinized mucosa in the mandibular anterior region (teeth 33-43) and 38 dental implants were included. Patients were randomly assigned to two groups: Test ( Ring FGG) and Control (Conventional FGG). Clinical parameters including Bleeding on Probing (BOP), Gingival Index (GI), Plaque Index (PI), Probing Depth (PD), Width of Keratinized Mucosa (KMW), Peri-implant Mucosal Thickness (PMT), and Graft Surface Area (GSA) were recorded at baseline, and at 1, 3, and 12 months postoperatively.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Free Gingival Graft Volume Change

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Department of Periodontology, Faculty of Dentistry, Bolu Abant İzzet Baysal University,

Bolu, 14100, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 1. Systemically healthy individuals 2. Age over 18 years 3. Non-smokers 4. No antibiotic therapy for any reason in the past 6 months 5. No previous soft tissue surgery performed in the region of interest 6. KMW≤ 2 mm 7. Presence of inadequate keratinized tissue in the vestibular and/or lingual area of the anterior mandibular implant region 8. Mentally competent to understand the study purpose and procedures explained both verbally and in writing

Exclusion criteria

  • 1. Presence of peri-implantitis in the implant(s) planned for FGG application (defined as probing depth ≥ 5 mm, pus discharge, mobility, or severe bone loss) 2. Inability to maintain oral hygiene or presence of implant body and/or abutment fractures in the related region 3. Presence of pathological conditions in the palate that prevent harvesting of a free gingival graft 4. History of systemic diseases such as Diabetes Mellitus, Chronic Renal Failure, Cancer, Bleeding Disorders, Connective Tissue Diseases, etc.
  • Use of anticoagulant and/or antiplatelet medications

Treatment and study plan

Free gingival graft

Procedure

standard free gingival technique

ring free gingival greft

Procedure

ring free gingival greft technique

Other names: ring free gingival

Primary outcomes

  1. keratinize gingiva

    Time frame: 2 week

    increasing the amount of keratinized gingiva

Sponsors and collaborators

Lead sponsor

Esra ATEŞ

Other

Registry information

Official study title

Ring Free Gingival Techniqea :A Randomized Controlled Trial

Important dates

Study start
2018
Primary completion
2020
Study completion
2020
First posted
Oct 2, 2025
Registry last updated
Oct 2, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.