NCT02882464

Brief Summary

Miller Class I Gingival Recessions (GR) have been treated by using Coronally Advanced Flap (CAF) with Platelet Rich Fibrin membrane (PRF membrane) or Connective Tissue Graft (CTG). The aim of this study was to evaluate the effect of different multiple layers of PRF membranes for the treatment of GR and compare the results with CTG procedure.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
21

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Apr 2014

Shorter than P25 for not_applicable

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2014

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2015

Completed
1.3 years until next milestone

First Submitted

Initial submission to the registry

June 5, 2016

Completed
3 months until next milestone

First Posted

Study publicly available on registry

August 29, 2016

Completed
Last Updated

August 29, 2016

Status Verified

August 1, 2016

Enrollment Period

10 months

First QC Date

June 5, 2016

Last Update Submit

August 24, 2016

Conditions

Keywords

gingival recessionmucogingival surgery

Outcome Measures

Primary Outcomes (3)

  • Change from baseline clinical measurement of gingival depth and gingival recession by periodontal Williams Type Probe as millimeter at postoperative 6 month

    All clinical measurement were recorded by same periodontal probe(Williams Probe)as height in meters. All measurement were calculated as mean ± standard deviation for per tooth. Clinical measurement following as: 1) Recession Depth: the distance from the CEJ to the most apical point of free gingival margin. 2) Recession Width: horizontal distance of recession in the mesio-distal direction at CEJ 3) Keratinized Tissue Height (KTH): the distance from the mucogingival junction to free gingival margin. 4)Probing Depth 5) Clinical Attachment Level

    before surgery and following surgery sixth month

  • Change from baseline measurement of keratinized tissue thickness on defects region by spreader and digital calliper at 6 months

    2\) Keratinized Tissue Thickness (KTT): Keratinized tissue thickness was measured under local anesthesia from a mid-point location between the gingival margin and mucogingival junction with a spreader and its stopper silicon

    before surgery and following surgery sixth month

  • Change from baseline measurement root coverage at 6 months in millimeters by periodontal probe and change from baseline measurement of root coverage percentage using calculate formula at 6 months

    Root Coverage: (RC) was calculated in millimeters and percentages according to the following formulas: \[(pre operative RD - post operative RD) / pre operative RD\]×100.

    before surgery and following surgery sixth month

Secondary Outcomes (1)

  • Number of participant with treatment related postoperative pain using Visual Analogue Scale on application of PRF and CAF+CTG

    first and seventh day

Study Arms (3)

2PRF+CAF

EXPERIMENTAL

Two tubes of blood samples were centrifuged by PC-02 Centrifuged device. This centrifuged device is used with 2700 rpm and for 12 minutes( PC-02 Centrifuge, Process,France). PRF were prepared for patients in 2 layer platelet rich fibrin membrane with coronally advanced flap group (2PRF+CAF). Following this, in test groups, a horizontal sulcular incision was designed at the buccal side of recession area at the level of CEJ. The incision was extended in the interdental area to be connecting CEJ. The root was planned and hard accumulations were removed but no chemical root treatment was performed. In 2PRF+CAF group: two layers of stacked PRF membranes were positioned over the recession area at the level of CEJ and flpa is positioned coronally.

Device: PC-02 Centrifuge device,2PRF+CAFDevice: PC-02 Centrifuge device, 4 PRF+CAFProcedure: CTG+CAF

4PRF+CAF

EXPERIMENTAL

Four tubes of blood samples were centrifuged by PC-02 Centrifuged device,four layers of PRF membranes were prepared for patients in 4 layer platelet rich fibrin membrane with coronally advanced flap.(4PRF+CAF). This centrifuged device is used with 2700 rpm and for 12 minutes( PC-02 Centrifuge, Process,France) Following this, in test groups, a horizontal sulcular incision was designed at the buccal side of recession area at the level of CEJ. The incision was extended in the interdental area to be connecting CEJ. The root was planned and hard accumulations were removed but no chemical root treatment was performed. In 4PRF+CAF group: four layers of stacked PRF membranes were positioned over the recession area at the level of CEJ and flap is coronally positioned.

Device: PC-02 Centrifuge device,2PRF+CAFDevice: PC-02 Centrifuge device, 4 PRF+CAFProcedure: CTG+CAF

CTG+CAF

ACTIVE COMPARATOR

The surgical technique in coronally advanced flap with subepithelial connective tissue graft (CTG+CAF) group was "envelope technique" as described by Raetzke. The papillae were dis epithelialized. The root was planned and hard accumulations were removed but no chemical root treatment was performed. The connective tissue graft was harvested from the palate using "trap-door technique" described by Edel. Epithelial layer was elevated with a horizontal and two vertical incisions. The connective tissue graft was harvested as 1 mm by using a standard caliper, then epithelial layer was sutured by resorbable suture. The connective tissue graft was sutured to the recipient bed by resorbable suture at the level of CEJ.

Device: PC-02 Centrifuge device,2PRF+CAFDevice: PC-02 Centrifuge device, 4 PRF+CAFProcedure: CTG+CAF

Interventions

In 2PRF+CAF group two layers of stacked PRF membranes were positioned over the recession area at the level of cemento-enamel junction(CEJ). In CAF+2PRF group,two layers of stacked PRF membranes were positioned over the recession area at the level of CEJ

Also known as: 2 layers Platelet rich fibrin+ coronally advanced flap
2PRF+CAF4PRF+CAFCTG+CAF

Following this, in test groups, a horizontal sulcular incision was designed at the buccal side of recession area at the level of CEJ. The incision was extended in the interdental area to be connecting CEJ. A split thickness flap was raised without vertical incision.18 The papillae were disepithelialized. The root was planned and hard accumulations were removed but no chemical root treatment was performed. In test group-1, two layers of stacked PRF membranes were positioned over the recession area at the level of CEJ. In test group-2, four layers of stacked PRF membranes were positioned over the recession area at the level of CEJ (Figure 2). Membranes were sutured to the recipient bed by a resorbable suture (polyglycolic acid 6/0, Doğsan, Turkey) at the level of CEJ.

Also known as: 4 layers Platelet Rich Fibrin + coronally advanced flap
2PRF+CAF4PRF+CAFCTG+CAF
CTG+CAFPROCEDURE

The connective tissue graft was sutured to the recipient bed by resorbable suture at the level of CEJ. Split thickness flap was coronally advanced and sutured by resorbable suture. Finally, periodontal dressing was fixed on the recipient surgical area.

Also known as: Connective Tissue Graft + Coronally Advanced Flap
2PRF+CAF4PRF+CAFCTG+CAF

Eligibility Criteria

Age18 Years - 52 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Periodontally and systemically healthy patient, ≥ 18 years.
  • Miller Class I gingival recession at the buccal aspect of lower and upper incisors, canines or premolars.
  • The presence of ≥ 2 mm keratinized tissue apical to the recession.
  • The presence of identifiable cemento enamel junction (CEJ).
  • ≤ 2 mm probing depth (PD)

You may not qualify if:

  • Smoking
  • Pregnancy
  • Periodontal surgery in the past six months.
  • Caries, deep abrasion, restoration or pulpal pathology on the involved tooth.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (4)

  • Eren G, Atilla G. Platelet-rich fibrin in the treatment of localized gingival recessions: a split-mouth randomized clinical trial. Clin Oral Investig. 2014 Nov;18(8):1941-8. doi: 10.1007/s00784-013-1170-5. Epub 2013 Dec 22.

  • Keceli HG, Kamak G, Erdemir EO, Evginer MS, Dolgun A. The Adjunctive Effect of Platelet-Rich Fibrin to Connective Tissue Graft in the Treatment of Buccal Recession Defects: Results of a Randomized, Parallel-Group Controlled Trial. J Periodontol. 2015 Nov;86(11):1221-30. doi: 10.1902/jop.2015.150015. Epub 2015 Jul 16.

  • Tunaliota M, Ozdemir H, Arabaciota T, Gurbuzer B, Pikdoken L, Firatli E. Clinical evaluation of autologous platelet-rich fibrin in the treatment of multiple adjacent gingival recession defects: a 12-month study. Int J Periodontics Restorative Dent. 2015 Jan-Feb;35(1):105-14. doi: 10.11607/prd.1826.

  • Culhaoglu R, Taner L, Guler B. Evaluation of the effect of dose-dependent platelet-rich fibrin membrane on treatment of gingival recession: a randomized, controlled clinical trial. J Appl Oral Sci. 2018 May 14;26:e20170278. doi: 10.1590/1678-7757-2017-0278.

MeSH Terms

Conditions

Gingival Recession

Condition Hierarchy (Ancestors)

Gingival DiseasesPeriodontal DiseasesMouth DiseasesStomatognathic DiseasesPeriodontal Atrophy

Study Officials

  • Rana Culhaoglu, PhD Dr

    PRINCIPAL INVESTIGATOR

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
Dr Dt

Study Record Dates

First Submitted

June 5, 2016

First Posted

August 29, 2016

Study Start

April 1, 2014

Primary Completion

February 1, 2015

Study Completion

February 1, 2015

Last Updated

August 29, 2016

Record last verified: 2016-08