Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Comparing different implant abutment connections for dental prostheses

Official title: Comparison of Abutments Engagement Configurations in Implant Supported Fixed Partial Dentures: a Randomized Clinical Trial

Run by University of Jordan · NCT06715722 · Data updated 2026-11-12

This study is testing which type of dental implant connection works better for people getting fixed prostheses to replace missing teeth, focusing on how well they heal and how satisfied patients are.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment24 (estimated)
SponsorUniversity of Jordan
Academic / other
Locations1 site (Amman)
StatusRecruiting
StartedNovember 11, 2024
Main results expectedJuly 20, 2025
Study endsNovember 10, 2025
Registry record updatedDecember 4, 2024
Trial IDNCT06715722 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with three missing teeth in the posterior mandible who are suitable for implant-supported fixed dental prostheses.

Probably not a fit

Patients with less than three missing teeth, extensive bone grafting needs, or systemic diseases affecting bone healing may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial compares various configurations of implant abutment connections in screw-retained fixed dental prostheses to assess their clinical and radiographic outcomes. It involves a randomized controlled design with patients receiving two internal connection dental implants to replace three missing posterior teeth in the mandible. Participants will be divided into two groups, one receiving engaging abutments and the other non-engaging abutments, with outcomes measured over time for bone levels, complications, and patient satisfaction. The study aims to identify which configuration results in fewer complications.

Why it matters

Potential benefit: If successful, this study could lead to improved outcomes and reduced complications for patients receiving dental implants.

How similar studies have gone: Previous studies have shown varying success with different implant abutment configurations, making this approach both relevant and potentially beneficial.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patients with edentulous span in the posterior mandible of 3 missing teeth.
* Candidates for an implant supported FDP in the posterior mandible.
* Teeth in area of interest extracted at least 3 months prior.
* Bone grafting not needed or only minor GBR needed.
* Controlled oral hygiene.
* Sufficient bone volume.

Exclusion Criteria:

* Patients with edentulous span of less than 3 missing teeth (not eligible to receive a 3 unit 2 implant supported FDP)
* Patients with healing period of extraction sites less than 3 months.
* Extensive bone grafting required prior to or during implant placement.
* Active Bruxism.
* Heavy smoker (\> 10 cigarettes).
* Systemic diseases that might affect bone healing.
* Patients who are not willing or unable to give consent.

Where it's running

  • Jordan University Hospital
    Amman, Jordan
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.