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Gingival RecessionNCT03616197

The Effect of Different Gingival Biotypes on Dimensional Stability of Free Gingival Graft

A study testing free gingival graft in people with Gingival Recession and Atrophy, run by Istanbul Aydın University.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study is to compare the effect of mesial and distal adjacent gingival biotypes of the tooth / teeth region of free gingival graft (FGG) on the shrinkage ratio of graft at 6 months postoperatively. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Gingival Recession, Atrophy
What is being tested?
free gingival graft
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
No sites listed yet
Study dates
Aug 2016to Jul 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • In the mandibular incisor tooth / teeth, the attached keratinized gingival width is <1 mm,
  • No periodontal surgery has been performed previously on the involved tooth.
  • In the absence of any systemic condition or illness (pregnancy, breastfeeding, mental retardation, diabetes, etc.) that may interfere with the patient's approval and dental treatment.
  • Do not use any of the drug groups that may cause gingival overgrowth.

Who cannot join

  • Previous periodontal surgery in the operation area
  • Restoration of the buccal surface of the tooth and no pathology in the apical region of the tooth.
  • In the presence of any systemic condition or illness (pregnancy, breastfeeding, mental retardation, diabetes, etc.) that may interfere with the patient's approval and dental treatment.

About this study

Official title: The Effect Of Different Gingival Biotypes On Dimensional Stability Of Free Gingival Graft: A Comparative 6 Month Clinical Study

The aim of this study is to compare the effect of mesial and distal adjacent gingival biotypes of the tooth / teeth region of free gingival graft (FGG) on the shrinkage ratio of graft at 6 months postoperatively.

Read the detailed description

The concept of gingival and periodontal phenotype was established as a result of clinical observation of changes in facial keratinized tissue width and thickness .It has been reported that gingival or periodontal diseases may develop more frequently in patients with thin gingival biotypes and that thick-flat biotype in implant restorations is important in achieving a successful aesthetic treatment outcome.

Free gingival graft (FGG) is a mucogingival surgical procedure that is successfully used in the presence of inadequate keratinized gingival width and gingival recession. It is thought that factors that may adversely affect the continuity of graft nutrition may be effective in graft shrinkage. These reasons can be listed as follows; graft thickness, traumatic surgical procedure, graft dehydration, and suturing procedure.

There was no study investigating the effect of periodontal biotypes on graft contraction in the region adjacent to the FGG operation.

Being tested
free gingival graft
Keywords
gingival biotype of adjacent teeth, free gingival graft, shrinkage of graft
Medical subject headings
Gingival Recession, Atrophy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • free gingival graftProcedure or surgery

    A horizontal incision was made along the mucogingival line with a scalpel number 15 to prepare a bed of periosteum and a thin immobilized connective tissue. The moving gingival tissues were removed coronally, and the bed was prepared so that the immobilized keratinized gingival tissue was preserved and the graft was placed apically. The template of the recipient region was placed in the donor region to be 2-3 mm more apically than the gingival margins of the teeth. The number of 15 scalpel was used to make incision at the template border and perpendicular to the keratinized tissue. The graft thickness was standardized in all patients between 1.5-2 mm. FGG was placed over the recipient bed and 5/0 non-resorbable monofilament sutures were used for fixing the four corners of the graft.

Study groups in NCT03616197
Study groupRoleWhat they receive
Group 1Active comparatorThin Biotype group has described as Group 1. The biotypes of the terminal teeth adjacent to the free gingival graft region were determined by the "Probe transparency method". The mesial terminal tooth (MTT) was defined as the first tooth adjacent to the mesial side of the tooth / teeth to which the FGG will be applied. The distal terminal tooth (DTT) was defined as the first tooth adjacent to the distal side of the tooth / teeth to which the FGG will be applied. If MTT and DTT had thin biotype, the patient was assigned to the thin biotype group.
Receives: Procedure: free gingival graft
Group 2Active comparatorThick biotype group has described as Group 2. The biotypes of the terminal teeth adjacent to the free gingival graft region were determined by the "Probe transparency method". The mesial terminal tooth (MTT) was defined as the first tooth adjacent to the mesial side of the tooth / teeth to which the FGG will be applied. The distal terminal tooth (DTT) was defined as the first tooth adjacent to the distal side of the tooth / teeth to which the FGG will be applied. If MTT and DTT had thick biotype, the patient was assigned to the thick biotype group.
Receives: Procedure: free gingival graft

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The graft shrinkage ratio

    Graft shrinkage = Preoperative area - Postoperative area X 100 Preoperative area

    Measured: baseline - 6th months postoperatively

Secondary outcomes (1)
  1. keratinized ginigival width

    Keratinized Gingival Width(KGW) was measured using a lugol solution (10% potassium iodide and 5% iodine) with a manual caliper spaced 0.5 mm from the mid-buccal point of the tooth, the distance between the gingival margin and mucogingival junction from MTT, DTT and the teeth/tooth in operation area.

    Measured: baseline - 6th months postoperatively

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Aug 2018
  2. Study startAug 2016
  3. Primary completionApr 2018
  4. Study completionJul 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03616197
Sponsor's protocol ID
2016-9/7
Status last verified
Aug 2018
First submitted
31 Jul 2018
Last updated
9 Aug 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hatipoglu H, Keceli HG, Guncu GN, Sengun D, Tozum TF. Vertical and horizontal dimensional evaluation of free gingival grafts in the anterior mandible: a case report series. Clin Oral Investig. 2007 Jun;11(2):107-13. doi: 10.1007/s00784-006-0084-x. Epub 2007 Feb 9.

    PubMed 17294229
  • Gumus P, Buduneli E. Graft stabilization with cyanoacrylate decreases shrinkage of free gingival grafts. Aust Dent J. 2014 Mar;59(1):57-64. doi: 10.1111/adj.12149. Epub 2014 Feb 4.

    PubMed 24494804
  • Barbosa FI, Correa DS, Zenobio EG, Costa FO, Shibli JA. Dimensional changes between free gingival grafts fixed with ethyl cyanoacrylate and silk sutures. J Int Acad Periodontol. 2009 Apr;11(2):170-6.

    PubMed 19431956

Questions about this trial

What is this clinical trial studying?

A study testing free gingival graft in people with Gingival Recession and Atrophy, run by Istanbul Aydın University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The graft shrinkage ratio (time frame: baseline - 6th months postoperatively). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03616197, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Aug 2018.

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