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CompletedNCT02380872Updated Mar 5, 2015

Cytokine and MMP Levels in Gingival Crevicular Fluid in the Treatment of Localized Gingival Recessions

An interventional study of Connective tissue graft and Platelet Rich Fibrin in Gingival Recession, sponsored by Ege University. Completed at 1 site in Turkey. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-03-05.

Sponsored by Ege University · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
24
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The main objective of this study was to evaluate the matrix metalloproteinase (MMP)-8, and -9, tissue inhibitor of matrix metalloproteinase and interleukin-1beta levels in gingival crevicular fluid during the early and late stages of healing for gingival recession sites treated by coronally advanced flap plus platelet rich fibrin (PRF) compared to CAF plus connective tissue graft. As PRF consists of several growth factors, it may enhance the healing potential of soft tissues, the investigators hypothesized that using PRF in the treatment of gingival recessions might regulate inflammation and promote wound healing.

Read the detailed description

The aim of this study was to evaluate the effect of PRF by assessing gingival crevicular fluid (GCF) levels of MMP-8, MMP-9, tissue inhibitor of matrix metalloproteinase (TIMP-1) and interleukin-1beta (IL-1β) during the early and late stages of healing following coronally advanced flap (CAF) plus PRF or CAF plus connective tissue graft (CTG) treatment.

Primary outcome variables were biochemical parameters, such as: GCF MMP-8, -9, TIMP-1 and IL-1β levels. The secondary outcome variables were change in gingival recession expressed as recession reduction in millimeters at follow-up visits.

Sample size has been estimated in 24 subjects per treatment groups. Random allocation of the treatment sites to test (CAF+ PRF) and control (CAF + SCTG) groups will be performed using a computerized selection of random numbers for allocation of the study groups.

Biochemical parameters: GCF samples were obtained from each recession defect in each subject immediately prior to treatment of recessions and at 10 days, 1 month, 3 months and 6 months after surgery.

Periodontal parameters including probing depth (PD), clinical attachment level (CAL), and gingival recession parameters including recession depth (RD), recession width (RW), and keratinized tissue width (KTW),were assessed by a calibrated examiner. At baseline and at 6 months, PD, RD, RW and KTW were evaluated by clinical assessment.

Follow-up of subjects: 6 months.

02

Conditions studied

  • Gingival Recession

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Keywords

  • Gingival recession
  • fibrin
  • connective tissue
  • gingival crevicular fluid
  • matrix metalloproteinase
  • cytokine
03

In context

Gingival Recession

402 studies on the registry are indexed under Gingival Recession; 98 are open to participants now.

This study's enrollment of 24 is below the median of 30 across 368 interventional studies indexed under Gingival Recession.

Browse Gingival Recession studies →

Lead sponsor

Ege University is the lead sponsor of 365 studies on the registry; 46 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Similar bilateral Miller Class I or II localized gingival recessions at least ≥ 2 mm located on incisors, canines or premolars on both jaws
  • Identifiable cementoenamel junction
  • Age ≥ 18 years
  • Presence of tooth vitality and absence of restorations and superficial caries in the area to be treated
  • No periodontal surgical treatment in the previous 24 months on the involved sites
  • Sufficient palatal donor tissue for the indicated SCTG.

Exclusion criteria

Exclusion Criteria:

  • Smoking
  • Patients with a pregnancy or lactation period or self-reported history of antibiotic medication within three months
  • Molar, mobile or teeth with crown or filling were also excluded.
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Randomized
Intervention model
Single group
Masking
Single (Outcomes assessor)
Enrollment
24 participants (actual)

Study arms

  • Active comparator
    Connective tissue graft

    Connective tissue graft Soft tissue harvested from palatum of the subjects.

    Procedure: Connective tissue graft

  • Experimental
    Platelet Rich Fibrin

    Autogenous platelet and leukocyte fibrin material was obtained from blood.

    Procedure: Platelet Rich Fibrin

Interventions

  • ProcedureConnective tissue graft

    gingival recession treated with connective tissue graft

  • ProcedurePlatelet Rich Fibrin

    gingival recession treated with platelet rich fibrin

06

What researchers measure

Primary outcomes

  1. Change from Baseline in MMP-8 gingival crevicular fluid level at 10 days, 1, 3 and 6 months

    Time frame: Baseline, 10 days, 1, 3 and 6 months

  2. Change from Baseline in MMP-9 gingival crevicular fluid level at 10 days, 1, 3 and 6 months

    Time frame: Baseline, 10 days, 1, 3 and 6 months

  3. Change from Baseline in TIMP-1 gingival crevicular fluid level at 10 days, 1, 3 and 6 months

    Time frame: Baseline, 10 days, 1, 3 and 6 months

  4. Change from Baseline in IL-1beta gingival crevicular fluid level at 10 days, 1, 3 and 6 months

    Time frame: Baseline, 10 days, 1, 3 and 6 months

Secondary outcomes

  1. Gingival recession depth

    Time frame: 6 months

07

Study locations

1 site
  • Ege University School of Dentistry Department of Periodontology
    İzmir, 35100, Turkey
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 5, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02380872
Lead sponsor
Ege University
Responsible party
Gülnihal Eren, Research Asisstant (Research Assistant, Ege University) — Principal investigator
First posted
Mar 5, 2015
Start date
Oct 2012
Primary completion
Sep 2013
Completion
Oct 2013
Last update
Mar 5, 2015

Study contacts

Gülnihal Eren, PhD. Dr.
principal investigator · Ege University School of Dentistry
Gül Atilla, Professor
study director · Ege University School of Dentistry

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2015. You cannot join it, but the record below documents what was studied.

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