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Dental implant shape linked to bone loss risk

NCT ID NCT06636097

Knowledge-focused Sponsor: University of Pittsburgh Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Sep 11, 2026 · Updated 3 times

Summary

This study examines whether the inner shape (concave or convex) of full-arch implant-supported dental prostheses is linked to bone loss around implants. Researchers will scan the prostheses and measure bone levels in 50 adults who have had these implants for at least a year. The goal is to see if certain shapes lead to more plaque buildup and bone loss, which could guide better implant design.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
full-arch implant-supported prosthesis with concave or convex intaglio shape
What this could lead to
If it works, this could help dentists design better-fitting dental prostheses to reduce bone loss around implants.
What could go wrong
This is a small, observational study that only looks at associations, not cause and effect. It may not lead to clear design guidelines.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jun 2024

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

All patients treated with a full-arch implant-supported prothesis from the University of Pittsburgh will be screened for inclusion in the study.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * ≥ 18 years old; * Rehabilitated with a full-arch screw-retained supported prosthesis in the maxilla, in function for at least 1 year; * Good overall health (ASA I or ASA II). Exclusion Criteria: * Individuals with motricity problems who cannot clean the prosthesis; * Patients treated or maintained in centers outside the University of Pittsburgh; * Incomplete dental records; * Misfit at the prosthesis-implant interface; * Cemented prosthesis; * Individuals rehabilitated with over dentures; * Individuals with uncontrolled chronic diseases or immunocompromised; * Pregnant Patients.

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Conditions

The condition(s) this trial relates to.

Peri-Implantitis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Peri-implantitis

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Pittsburgh, School of Dental Medicine

    Pittsburgh, Pennsylvania, 15213, United States

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