NCT03090906

Brief Summary

The goal of this study is to compare clinical and histologically the soft tissue changes in terms of volume gain and stability around dental implants in cases where a subepithelial connective tissue graft from the palate or from the tuberosity is used randomly

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
32

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2015

Typical duration for not_applicable

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2015

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

January 29, 2017

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2017

Completed
26 days until next milestone

First Posted

Study publicly available on registry

March 27, 2017

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2017

Completed
Last Updated

May 4, 2017

Status Verified

May 1, 2017

Enrollment Period

1.9 years

First QC Date

January 29, 2017

Last Update Submit

May 3, 2017

Conditions

Keywords

volume gainsoft tissue augmentationdental implantshistology

Outcome Measures

Primary Outcomes (2)

  • Soft tissue volume gain

    Following soft tissue augmentation procedure volume gain is registered using intraoral optical scan. Superposition between three dimensional images from baseline (before augmentation procedure) and 3 months postoperative is done.

    Baseline to 3 months postoperative

  • Soft tissue stability

    To evaluate soft tissue stability an intraoral optical scan is performed at 4 and 12 months postoperative. Also a superimposition between 4 months and 12 months optical images is done.

    4 months postoperative to 12 months postoperative

Secondary Outcomes (4)

  • Histology

    Baseline

  • Clinical periodontal parameters Plaque Index and Bleeding on probing

    Baseline, 3 months, 4 months, 12 months

  • Clinical periodontal parameters.Probing depth

    Baseline, 3 months, 4 months, 12 months

  • Clinical periodontal parameters. Width of keratinized tissue

    Baseline, 3 months, 4 months, 12 months

Study Arms (2)

Control group: SCTG from palate

EXPERIMENTAL

Soft tissue augmentation palate

Procedure: Soft tissue augmentation palateDevice: Intraoral optical scan

Test group: SCTG from tuberosity

EXPERIMENTAL

Soft tissue augmentation tuberosity

Procedure: Soft tissue augmentation tuberosityDevice: Intraoral optical scan

Interventions

Recipient site: Intrasulcular incision at the buccal side of the implant extending in one adjacent tooth for each side and a partial-thickness mucosal flap raised. The connective tissue was secured with suture. Allocation to either treatment was performed according to a randomization table. Donor site A double-bladed scalpel handle 1,5mm was used in both areas to obtain the same thickness. Palate (CG) The double incision was made approximately 2 to 3 mm apical to the gingival margins of premolars. The donor tissue was removed and cross-mattress sutures were used to approximate the wound on the palate. In both groups the epithelial collar removed. Graft required dimensions for both groups:10mm height, 12mm length and 1,5mm thick.

Also known as: subepithelial connective tissue graft
Control group: SCTG from palate

Recipient site: Intrasulcular incision at the buccal side of the implant extending in one adjacent tooth for each side and a partial-thickness mucosal flap raised. The connective tissue was secured with suture. Allocation to either treatment was performed according to a randomization table. Donor site A double-bladed scalpel handle 1,5mm was used in both areas to obtain the same thickness. Tuberosity (TG) The double incision was made from the distal of the terminal tooth. A second incision was made perpendicular to the linear incision at a distal point, which joined the two linear incisions. The graft was removed and a crossed horizontal suspension suture was used. Epithelial collar removed. Graft required dimensions for both groups:10mm height, 12mm length and 1,5mm thick.

Also known as: subepithelial connective tissue graft
Test group: SCTG from tuberosity

Intraoral optical scan was performed at both groups at baseline, 3 months, 4 months and 12 months to be able to compare volumetric changes.

Control group: SCTG from palateTest group: SCTG from tuberosity

Eligibility Criteria

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

You may qualify if:

  • Patient must be ≥18 years and able to understand the nature of the proposed surgery and to a signed informed consent.
  • Implant must be located between 2 fixed reference points i.e. clinical crowns.
  • All implants locations with a need of a soft tissue volume augmentation.
  • Palate must have ≥2mm of thickness at premolar area.
  • Tuberosity \> 12mm in length.
  • Full mouth plaque and bleeding score \<20%.

You may not qualify if:

  • Previous soft tissue augmentation in the area.
  • Heavy Smokers (\> 10 cigarettes per day).
  • Local or systemic conditions that would interfere with routine periodontal therapy (non controlled diabetes, liver function disorder, immunosuppressant disease, autoimmune disease).
  • Allergy to Non-Steroidal Anti-Inflammatory Drugs.
  • Patients taking medications that cause gingival enlargement
  • Gingival idiopatic overgrowth

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Tooth LossGingival Recession

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic DiseasesTooth DiseasesGingival DiseasesPeriodontal Atrophy

Study Design

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

Study Record Dates

First Submitted

January 29, 2017

First Posted

March 27, 2017

Study Start

April 1, 2015

Primary Completion

March 1, 2017

Study Completion

August 1, 2017

Last Updated

May 4, 2017

Record last verified: 2017-05

Data Sharing

IPD Sharing
Will not share