NCT03584906

Brief Summary

The purpose of this study is to compare four different connective tissue graft harvesting technique in terms of graft quality and patient post-operative morbidity

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2018

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

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

First Submitted

Initial submission to the registry

June 19, 2018

Completed
23 days until next milestone

First Posted

Study publicly available on registry

July 12, 2018

Completed
1 month until next milestone

Study Start

First participant enrolled

August 16, 2018

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 28, 2020

Completed
18 days until next milestone

Study Completion

Last participant's last visit for all outcomes

June 15, 2020

Completed
Last Updated

June 30, 2020

Status Verified

June 1, 2020

Enrollment Period

1.8 years

First QC Date

June 19, 2018

Last Update Submit

June 29, 2020

Conditions

Outcome Measures

Primary Outcomes (2)

  • Patient morbidity (VAS)

    Patient post-operative pain measured using a VAS scale

    14 days

  • Mean root coverage (mRC)

    mRC measured as a percentage

    6 months

Secondary Outcomes (6)

  • Clinical attachment level (CAL) gain

    6 months

  • Gingival thickness (GT)

    6 months

  • Patient willingness for retreatment

    14 days

  • Painkillers consumption

    14 days

  • Root coverage Esthetic Score (RES)

    6 months

  • +1 more secondary outcomes

Study Arms (4)

De-epithelialized gingival graft (DGG)

EXPERIMENTAL

A harvesting approach where the a graft is obtained from the superficial palate and then extra-orally de-epithelialized in order to obtain a connective tissue graft (DGG harvesting approach) Then the DGG is used for treating gingival recessions (root coverage procedure)

Procedure: DGG Harvesting approachProcedure: Root coverage procedure

Envelope technique (ET)

EXPERIMENTAL

A harvesting approach where only one horizontal incision is performed on the palate (ET harvesting approach) for harvesting a connective tissue graft. Then the connective tissue graft is used for treating gingival recessions (root coverage procedure)

Procedure: ET harvesting approachProcedure: Root coverage procedure

Trap door technique (TDT)

EXPERIMENTAL

A harvesting approach where one horizontal and two vertical incisions are performed on the palate (TDT harvesting approach) for harvesting a connective tissue graft. Then the connective tissue graft is used for treating gingival recessions (root coverage procedure)

Procedure: TDT harvesting approachProcedure: Root coverage procedure

Maxillary tuberosity (MT)

EXPERIMENTAL

A harvesting approach that obtains an epithelialized gingival graft from the maxillary tuberosity (MT harvesting approach) which is then extra-orally de-epithelialized in order to obtain a connective tissue graft. Then the connective tissue graft is used for treating gingival recessions (root coverage procedure)

Procedure: MT harvesting approachProcedure: Root coverage procedure

Interventions

An epithelialized graft is harvested from the superficial palate and then extraorally de-epithelialized in order to obtain a connective tissue graft

De-epithelialized gingival graft (DGG)

A connective tissue graft is harvested from the palate after reflecting a primary palatal flap

Envelope technique (ET)

A connective tissue graft is harvested from the palate after reflecting a primary palatal flap

Trap door technique (TDT)

An epithelialized graft is harvested from the maxillary tuberosity and then extraorally de-epithelialized in order to obtain a connective tissue graft

Maxillary tuberosity (MT)

A single or multiple gingival recession is treated with a coronally advanced flap and a connective tissue graft

De-epithelialized gingival graft (DGG)Envelope technique (ET)Maxillary tuberosity (MT)Trap door technique (TDT)

Eligibility Criteria

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

You may qualify if:

  • years of age or greater,
  • Patients with no reported systemic diseases,
  • Healthy periodontium or demonstrating stable periodontal condition following conventional periodontal therapy,
  • Full mouth plaque score (FMPS) and full mouth bleeding score (FMBS) of \< 15%,
  • Clinical indication for periodontal plastic surgery utilizing CTG to treat either a single or a maximum of two recession defects (Miller class I, II) around natural teeth
  • No history of previous palatal harvesting

You may not qualify if:

  • Pregnancy
  • Systemic condition that generally precludes surgical therapy or that could influence the outcome of therapy (e.g. Diabetes with HbA1c \> 7%, INR \> 3 etc.)
  • Non-compensated systemic disease
  • Poor oral hygiene with full mouth plaque score (FMPS) and full mouth bleeding score (FMBS) \> 20% at baseline
  • Inadequate endodontic treatment or tooth mobility at the site of surgery
  • Radiographic evidence of bone loss

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of Milan

Milan, 20122, Italy

Location

Studio Odontoiatrico

Piacenza, 29121, Italy

Location

Related Publications (5)

  • Zucchelli G, Mele M, Stefanini M, Mazzotti C, Marzadori M, Montebugnoli L, de Sanctis M. Patient morbidity and root coverage outcome after subepithelial connective tissue and de-epithelialized grafts: a comparative randomized-controlled clinical trial. J Clin Periodontol. 2010 Aug 1;37(8):728-38. doi: 10.1111/j.1600-051X.2010.01550.x. Epub 2010 Jun 24.

    PMID: 20590963BACKGROUND
  • Tavelli L, Barootchi S, Nguyen TVN, Tattan M, Ravida A, Wang HL. Efficacy of tunnel technique in the treatment of localized and multiple gingival recessions: A systematic review and meta-analysis. J Periodontol. 2018 Sep;89(9):1075-1090. doi: 10.1002/JPER.18-0066. Epub 2018 Aug 13.

    PMID: 29761502BACKGROUND
  • Tavelli L, Ravida A, Saleh MHA, Maska B, Del Amo FS, Rasperini G, Wang HL. Pain perception following epithelialized gingival graft harvesting: a randomized clinical trial. Clin Oral Investig. 2019 Jan;23(1):459-468. doi: 10.1007/s00784-018-2455-5. Epub 2018 Apr 30.

    PMID: 29713890BACKGROUND
  • Wessel JR, Tatakis DN. Patient outcomes following subepithelial connective tissue graft and free gingival graft procedures. J Periodontol. 2008 Mar;79(3):425-30. doi: 10.1902/jop.2008.070325.

    PMID: 18315424BACKGROUND
  • Lorenzana ER, Allen EP. The single-incision palatal harvest technique: a strategy for esthetics and patient comfort. Int J Periodontics Restorative Dent. 2000 Jun;20(3):297-305.

    PMID: 11203571BACKGROUND

MeSH Terms

Conditions

Gingival RecessionWounds and Injuries

Condition Hierarchy (Ancestors)

Gingival DiseasesPeriodontal DiseasesMouth DiseasesStomatognathic DiseasesPeriodontal Atrophy

Study Officials

  • Giulio Rasperini, DDS

    University of Milan

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Periodontology

Study Record Dates

First Submitted

June 19, 2018

First Posted

July 12, 2018

Study Start

August 16, 2018

Primary Completion

May 28, 2020

Study Completion

June 15, 2020

Last Updated

June 30, 2020

Record last verified: 2020-06

Locations