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 type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 24 (estimated) |
| Sponsor | University of Jordan Academic / other |
| Locations | 1 site (Amman) |
| Status | Recruiting |
| Started | November 11, 2024 |
| Main results expected | July 20, 2025 |
| Study ends | November 10, 2025 |
| Registry record updated | December 4, 2024 |
| Trial ID | NCT06715722 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
- Study coordinator: Mohammad A AL-Rababáh
- Email: malrababah@ju.edu.jo
- Phone: 00962792131548
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Dental Abutments With Different Surfaces in Two-Unit Implant Bridges
This study tests whether two different abutment surface types affect outcomes for people needing two-implant-supported, two-unit bridges in the back of the mouth.
-
Lactoferrin Gel for Healing and Implant Stability in Immediate Mandibular Molars
A 4% bovine lactoferrin nanohydrogel is being tested to see if it helps soft tissue and bone heal better and improve implant stability after immediate mandibular molar implants.
-
Melatonin Gel in Immediate Molar Implants in the Back of the jaw
In this small study, researchers test whether applying a 1% melatonin gel during immediate molar implant placement in the back of the lower jaw helps with healing and bone formation.
-
Vitamin D and dental implant osseointegration in adults with deficiency
This study tests whether giving vitamin D helps improve how well dental implants fuse with bone in adults who are deficient.
-
Buccal fat pad versus palatal pedicle flap for soft tissue coverage over zygomatic implants in a severely atrophied upper jaw
This trial will test whether using the buccal fat pad or a palatal pedicle flap gives thicker, more stable soft tissue around zygomatic implants in adults with a severely atrophied upper jaw.
-
Comparing metal versus resin surgical guides for placing zygomatic implants in severely atrophic upper jaws
This trial will test whether fully metallic surgical guides or resin 3D‑printed guides give more accurate implant placement for adults who need zygomatic implants because of severe upper‑jaw bone loss.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.