NCT03020732

Brief Summary

Platelet concentrates(PC) are used in the field of periodontology and implantology for the content necessary key cells and growth factors to accelerate healing and to provide regeneration. Concentrated Growth Factors(CGF) is defined as an innovative method or a new generation PC. The purpose of this clinical study was to evaluate the clinical effectiveness of Concentrated Growth Factor(CGF) membrane with coronally advanced flap(CAF) procedure's and subepithelial connective tissue graft(SCTG) with CAF in the treatment of Miller class I gingival recessions (GR).

Trial Health

100
On Track

Trial Health Score

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

Enrollment
19

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2013

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

February 1, 2013

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2014

Completed
2.9 years until next milestone

First Submitted

Initial submission to the registry

December 30, 2016

Completed
14 days until next milestone

First Posted

Study publicly available on registry

January 13, 2017

Completed
Last Updated

February 11, 2019

Status Verified

February 1, 2019

Enrollment Period

1 year

First QC Date

December 30, 2016

Last Update Submit

February 7, 2019

Conditions

Keywords

growth factormucogingival surgerygingival recession

Outcome Measures

Primary Outcomes (5)

  • recession depth

    recession depth was measured distance from cemento-enamel junction(CEJ) to the gingival margin, using periodontal probe at the mid-facial surface and rounded to the nearest millimeters.

    change from baseline at following surgery first, third and sixth month respectively

  • root coverage

    Root coverage(RC) was calculated for multiple recession defects groups with a formula.

    change from baseline at following surgery first, third and sixth month respectively

  • keratinized tissue thickness

    Keratinized tissue thickness(KTT) value was obtained from a digital caliper with the accuracy of 0.01 mm and using a 15 endodontic reamer, on mid-point localization of keratinized tissue or the alveolar mucosa, at level bottom of the gingival crevice.

    change from baseline at following surgery first, third and sixth month respectively

  • keratinized tissue weight

    keratinized tissue weight was measured distance from the free gingival margin to the mucogingival junction, using periodontal probe at the mid-facial surface and rounded to the nearest millimeters.

    change from baseline at following surgery first, third and sixth month respectively

  • clinical attachment level

    clinical attachment level was mesured distance from CEJ to the bottom of the gingival crevice

    change from baseline at following surgery first, third and sixth month respectively

Secondary Outcomes (2)

  • wound healing

    after surgery first, second and third week

  • VAS scores for pain evaluation

    after surgery first seven days

Other Outcomes (3)

  • Plaque index

    change from baseline at following surgery first, third and sixth month respectively

  • Gingival index

    change from baseline at following surgery first, third and sixth month respectively

  • Probing pocket depth

    change from baseline at following surgery first, third and sixth month respectively

Study Arms (2)

test groups

EXPERIMENTAL

In this split mouth study, bilaterally gingival recession defects were randomly treated in test(CGF+CAF) or control(SCTG+CAF) groups.In test groups, a special centrifuge machine(Medifuge) and subjects venous blood were used to obtain Concentrated growth factor. A special compress was used to transform Concentrated growth factor membrane.

Procedure: test groups

control groups

ACTIVE COMPARATOR

In this split mouth study, bilaterally gingival recession defects were randomly treated in test(CGF+CAF) or control(SCTG+CAF) groups. In control groups, subepithelial connective tissue graft was taken from the palatal canine teeth-first molar teeth area with a trap door technique according to the width of the exposed root surface and the adjacent bone margins. The graft's thickness was adjusted between 1.5 and 2 mm.

Procedure: control groups

Interventions

test groupsPROCEDURE

Coronally advanced flap procedure is a mucogingival surgery technique that was used to prepare recipient sites. Concentrated growth factor(CGF) membranes were placed over the exposed root surface. The flap was advanced 1 mm coronally from CEJ to completely cover.

Also known as: CGF+ CAF groups
test groups

Coronally advanced flap procedure is a mucogingival surgery technique that was used to prepare recipient sites. Subepithelial connective tissue graft was placed over the exposed root surface. The flap was advanced 1 mm coronally from CEJ to completely cover.

Also known as: SCTG+CAF
control groups

Eligibility Criteria

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

You may qualify if:

  • age≥18
  • systemically and periodontally healthy non-smoker patients
  • multiple, adjacent, bilaterally Miller class I
  • recession depth ≥2 and ≤5 mm, probing depth≤3 mm, located lateral, canine or premolars on same arch(maxilla or mandibula)
  • identifiable cemento-enamel junction
  • absence caries or restoration on buccal surface, endodontic treatment or problem
  • palatal donor tissue thickness ≥3 mm for SCTG

You may not qualify if:

  • patients have smoking habit or systemic diseases that might be contraindication for periodontal surgery
  • the presence of using medication affect that blood clotting mechanism and wound healing
  • previous periodontal surgeries in gingival recession areas
  • pregnancy, lactation,or oral contraceptive drug intake for female patients
  • insufficient oral hygiene (full- mouth plaque and bleeding scores ≥15% after phase I periodontal treatment)
  • unchanged traumatic tooth-brushing habit

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (7)

  • Bozkurt Dogan S, Ongoz Dede F, Balli U, Atalay EN, Durmuslar MC. Concentrated growth factor in the treatment of adjacent multiple gingival recessions: a split-mouth randomized clinical trial. J Clin Periodontol. 2015 Sep;42(9):868-875. doi: 10.1111/jcpe.12444. Epub 2015 Sep 22.

  • 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.

  • 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.

  • Jankovic S, Aleksic Z, Klokkevold P, Lekovic V, Dimitrijevic B, Kenney EB, Camargo P. Use of platelet-rich fibrin membrane following treatment of gingival recession: a randomized clinical trial. Int J Periodontics Restorative Dent. 2012 Apr;32(2):e41-50.

  • Jankovic S, Aleksic Z, Milinkovic I, Dimitrijevic B. The coronally advanced flap in combination with platelet-rich fibrin (PRF) and enamel matrix derivative in the treatment of gingival recession: a comparative study. Eur J Esthet Dent. 2010 Autumn;5(3):260-73.

  • Aroca S, Keglevich T, Barbieri B, Gera I, Etienne D. Clinical evaluation of a modified coronally advanced flap alone or in combination with a platelet-rich fibrin membrane for the treatment of adjacent multiple gingival recessions: a 6-month study. J Periodontol. 2009 Feb;80(2):244-52. doi: 10.1902/jop.2009.080253.

  • Del Corso M, Sammartino G, Dohan Ehrenfest DM. Re: "Clinical evaluation of a modified coronally advanced flap alone or in combination with a platelet-rich fibrin membrane for the treatment of adjacent multiple gingival recessions: a 6-month study". J Periodontol. 2009 Nov;80(11):1694-7; author reply 1697-9. doi: 10.1902/jop.2009.090253.

MeSH Terms

Conditions

Gingival Recession

Interventions

Control Groups

Condition Hierarchy (Ancestors)

Gingival DiseasesPeriodontal DiseasesMouth DiseasesStomatognathic DiseasesPeriodontal Atrophy

Intervention Hierarchy (Ancestors)

Epidemiologic Research DesignEpidemiologic MethodsInvestigative TechniquesResearch DesignMethods

Study Officials

  • Fatma Berrin Ünsal

    affiliated

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
phd doctor

Study Record Dates

First Submitted

December 30, 2016

First Posted

January 13, 2017

Study Start

February 1, 2013

Primary Completion

February 1, 2014

Study Completion

February 1, 2014

Last Updated

February 11, 2019

Record last verified: 2019-02