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CompletedNCT01431144Updated Feb 1, 2017Results posted

Implant Placement With Simultaneous Gum Grafting

An interventional study of connective tissue autograft and connective tissue allograft in Edentulous, sponsored by University of Louisville. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-02-01.

Sponsored by University of Louisville · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
27
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is a comparison of implant placed and simultaneously grafted with either autogenous connective tissue or a connective tissue allograft. The objective is to determine the change in soft tissue thickness and determine if a better result is obtained with the autograft or the allograft. The hypothesis is that there will be no difference in soft tissue thickness over the implant between the autograft and the allograft technique.

02

Conditions studied

  • Edentulous

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Keywords

  • soft tissue thickness
  • dental implant
  • soft tissue recession
  • implant exposure
03

In context

Mouth, Edentulous

244 studies on the registry are indexed under Mouth, Edentulous; 37 are open to participants now.

This study's enrollment of 27 is close to the median of 30 across 187 interventional studies indexed under Mouth, Edentulous.

Browse Mouth, Edentulous studies →

Lead sponsor

University of Louisville is the lead sponsor of 284 studies on the registry; 53 are open to participants now.

Of its 20 completed or terminated interventional studies of FDA-regulated products, 7 (35%) have results posted.

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

  • One edentulous site bordered by 2 teeth needing a dental implant

Exclusion criteria

Exclusion Criteria:

  • Systemic diseases that affect the periodontium
  • Previous head and neck radiation
  • Smoking more that 1/2 pack per day
  • Requires prophylactic antibiotics
  • Allergy to meds used in study
  • Previous chemotherapy
  • Pregnancy
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
27 participants (actual)

Study arms

  • Active comparator
    Connective tissue autograft

    A connective tissue autograft harvested from the palate was grafted onto the facial of a simultaneously placed dental implant and soft tissue thickness was measured at baseline and Time 4.

    Procedure: connective tissue autograft

  • Experimental
    connective tissue allograft

    An acellular dermal matrix allograft was grafted on the facial surface of a simultaneously placed dental implant and soft tissue thickness was measured at baseline and Time 4.

    Procedure: connective tissue allograft

Interventions

  • Procedureconnective tissue autograft

    A connective tissue autograft is harvested from the palate and grafted at the site of implant placement on the facial surface.

  • Procedureconnective tissue allograft

    An acellular dermal matrix allograft (Alloderm, BioHorizons, Inc, Birmingham, AL, USA) is grafted at the site of implant placement on the facial surface.

06

What researchers measure

Primary outcomes

  1. Soft Tissue Thickness Over the Implant

    Soft tissue thickness at the facial osseous crest.

    Time frame: 1 year

07

Results

Posted Sep 13, 2013
Limitations and caveats
There were no adverse events. There were 2 cases of implant mobility and these was treated as a potential expected complication and handled with routine clinical practice guidelines.

Participant flow

27 patients were entered, 13 for the test allograft group and 14 for the positive control connective tissue autograft group

Participant flow — Overall Study
MilestoneConnective Tissue AllograftConnective Tissue Autograft
Started1314
Completed1114
Not completed20
Withdrew: Implant mobility and removal20

Outcome measures

PrimarySoft Tissue Thickness Over the Implant

Soft tissue thickness at the facial osseous crest.

Time frame:
1 year
Reported as:
Mean · mm
Soft Tissue Thickness Over the Implant
mmConnective Tissue AllograftConnective Tissue Autograft
Soft Tissue Thickness Over the Implant0.6 ± 1.20.4 ± 0.7

Adverse events

Collected over Baseline to final, no adverse events. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Connective Tissue Allograft—0/13 (0%)0/13 (0%)
Connective Tissue Autograft—0/14 (0%)0/14 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Connective Tissue AllograftConnective Tissue AutograftTotal
<=18 years000
Between 18 and 65 years10919
>=65 years358
Age, Continuous
Age, Continuous(years)Connective Tissue AllograftConnective Tissue AutograftTotal
Mean46 ± 2157 ± 1052 ± 16
Gender
Gender(Participants)Connective Tissue AllograftConnective Tissue AutograftTotal
Female7916
Male6511
Region of Enrollment
Region of Enrollment(participants)Connective Tissue AllograftConnective Tissue AutograftTotal
United States131427
08

Study locations

1 site
  • Graduate Periodontics Clinic, School of Dentistry, University of Louisville
    Louisville, Kentucky 40202, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 1, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01431144
Lead sponsor
University of Louisville
Collaborators
BioHorizons, Inc.
Responsible party
Henry Greenwell (Principal Investigator, University of Louisville) — Principal investigator
First posted
Sep 9, 2011
Start date
Sep 2011
Primary completion
Jun 2013
Completion
Jun 2013
Results posted
Sep 13, 2013
Last update
Feb 1, 2017

Study contacts

Henry Greenwell, DMD
principal investigator · University of Louisville

Oversight

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

Not currently enrolling

This study is completed, as verified in Jul 2013. You cannot join it, but the record below documents what was studied.

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