NCT07471386

Brief Summary

This study aims to increase the width and thickness of peri-implant keratinized mucosa (KM) by transferring a properly dimensioned free gingival graft (FGG) from the palatal donor site and to evaluate its effect as an adjunctive approach to non-surgical peri-implantitis therapy. The procedure is indicated for patients diagnosed with peri-implantitis who present with an inadequate KM (midbuccal KM height \< 2 mm). One month after non-surgical therapy, patients in the test group will undergo keratinized mucosa augmentation using an FGG, while patients in the control group will continue with supportive periodontal therapy and regular follow-up visits. The primary outcome measure of the study is the change in probing depth (PD) at 12 months following peri-implantitis treatment.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
11mo left

Started Mar 2026

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress23%
Mar 2026Jun 2027

Study Start

First participant enrolled

March 1, 2026

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

March 10, 2026

Completed
3 days until next milestone

First Posted

Study publicly available on registry

March 13, 2026

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2027

Expected
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

March 13, 2026

Status Verified

January 1, 2026

Enrollment Period

1.1 years

First QC Date

March 10, 2026

Last Update Submit

March 10, 2026

Conditions

Keywords

Peri-implantitisFree gingival graftInflamationSoft tissue deficiency

Outcome Measures

Primary Outcomes (1)

  • Change in PPD

    Following at 12. months post-treatment

Secondary Outcomes (4)

  • Bleeding on Probing

    Following at 12. months post-treatment

  • Plaque index

    Following at 12. months post-treatment

  • Keratinized mucosa width

    Following at 12. months post-treatment

  • Keratinized mucosa thickness

    Following at 12. months post-treatment

Study Arms (2)

Control group

ACTIVE COMPARATOR

Non-surgical treatment of peri-implantitis alone

Other: Submucosal debridman + saline irrigation

Test Group

ACTIVE COMPARATOR

Non-surgical treatment of perı-implantitis + Free gingival graft procedure

Procedure: Free gingival graft surgery

Interventions

Participants diagnosed with peri-implantitis and presenting with insufficient keratinized mucosa (width and thickness \<2 mm) will first receive non-surgical peri-implant therapy. Mechanical debridement of the peri-implant surfaces will be performed using titanium curettes and implant-specific ultrasonic tips in order to remove bacterial biofilm without damaging the implant surface. Additionally, sterile saline solution will be used for submucosal irrigation after mechanical debridement. Patients will receive individualized oral hygiene instructions, including proper brushing techniques, and be suitable for implant-supported restorations. Participants in this group will not receive any surgical or soft tissue grafting procedures.

Control group

Participants diagnosed with peri-implantitis and presenting with insufficient keratinized mucosa (width and thickness \<2 mm) will first receive non-surgical peri-implant therapy. Mechanical debridement of the peri-implant surfaces will be performed using titanium curettes and implant-specific ultrasonic tips in order to remove bacterial biofilm without damaging the implant surface. Additionally, sterile saline solution will be used for submucosal irrigation after mechanical debridement. Patients will receive individualized oral hygiene instructions, including proper brushing techniques, and be suitable for implant-supported restorations. In this group, a free gingival graft (FGG) will be harvested from the palatal donor site under local anesthesia after completion of non-surgical therapy and resolution of acute inflammation.FGG will be stabilized using interrupted or continuous sutures. Participants will be followed for clinical and radiographic evaluations.

Test Group

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Non-smoker
  • Systemically healthy
  • Keratinized mucosa witdh \< 2 mm

You may not qualify if:

  • İntake of medications that impede periodontal tissue health and healing
  • Pregnancy or lactation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Gazi University Faculty of Dentistry

Ankara, Turkey (Türkiye)

RECRUITING

MeSH Terms

Conditions

Peri-Implantitis

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic Diseases

Study Officials

  • Sila Cagri Isler, Prof Dr

    Gazi University Faculty of Dentistry

    STUDY DIRECTOR

Central Study Contacts

Sila Cagri Isler, Prof. Dr.

CONTACT

Berrin Unsal, Prof Dr

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor Dr

Study Record Dates

First Submitted

March 10, 2026

First Posted

March 13, 2026

Study Start

March 1, 2026

Primary Completion (Estimated)

April 1, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

March 13, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations