Assessing soft tissue changes around dental implants with small bone defects

Peri-implant Soft Tissue Volume Changes After Treatment of Small Buccal Dehiscence With Volume-stable Collagen Matrix or Connective Tissue Graft: a Randomized Controlled Clinical Trial

NA · University of Turin, Italy · NCT05466006

This study is testing whether using a connective tissue graft or a collagen matrix can improve the health of soft tissue around dental implants with small bone defects.

Quick facts

PhaseNA
Study typeInterventional
Enrollment28 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Turin, Italy (other)
Locations1 site (Turin)
Trial IDNCT05466006 on ClinicalTrials.gov

What this trial studies

This study evaluates the health and stability of soft tissue around dental implants that have small buccal bone dehiscences of less than 3mm at the time of insertion. Patients will be randomly assigned to receive either a connective tissue graft or a volume stable collagen matrix to augment the soft tissue. The outcomes will be assessed at three months post-surgery and again at twelve months after crown placement to determine the effectiveness of each intervention.

Who should consider this trial

Good fit: Ideal candidates are adults with a single tooth edentulous space and a small buccal bone dehiscence of 3mm or less.

Not a fit: Patients under 18, pregnant or lactating women, heavy smokers, and those with contraindications for surgery will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the outcomes of dental implant procedures by enhancing soft tissue health and stability.

How similar studies have performed: Similar studies have shown promising results in soft tissue augmentation techniques, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Single tooth edentulous space
* Expected small buccal bone dehiscence (≤3mm evaluated in a vertical direction) assessed according to the prosthetically guided position of an implant of 4 mm in diameter planned using the pre-surgical CBCT
* Completed non-surgical periodontal therapy (if needed)
* FMPS and FMBS \< 20%

Exclusion Criteria:

* Age \< 18 years old
* Pregnancy or lactation
* Heavy smokers (\> 10 cigarette/day)
* Conditions or diseases contraindicating surgical interventions
* Absence of the expected small buccal bone dehiscence (≤3mm evaluated in a vertical direction) verified after implant placement
* Need for bone regeneration at the implant site

Where this trial is running

Turin

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Dental Implants

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.