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Dental implant study tests which metal framework lasts longest

NCT ID NCT07489027

Disease control Sponsor: Mansoura University 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 27 people who had full-arch dental implants (six in the upper jaw and six in the lower jaw) to compare three different methods for making the metal framework that holds the false teeth. The methods were traditional casting, computer-aided milling (CAD/CAM), and 3D printing (selective laser melting). Researchers tracked problems like screw loosening or breakage, tooth wear, and how well the framework fit.

What this could mean

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

Active substance
Cobalt-Chromium framework (conventional casting, CAD/CAM milling, or selective laser melting)
What this could lead to
If one method proves clearly better, it could lead to fewer broken screws or teeth and a more comfortable fit for people with full-arch dental implants.
What could go wrong
This is a small, completed study with only 27 participants, so results may not apply to everyone. The findings are about short-term complications, not long-term success.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

27 people

The number who actually took part.

Started

Jan 2024

Finished

Feb 2026

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.

Ages

45 to 70 years

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: * • Six osseointegrated maxillary and six mandibular implants * No clinical or radiographic signs of implant failure * Good systemic health * Normal maxillomandibular relationship and acceptable oral hygiene Exclusion Criteria: * • Implant failure * Unfavorable occlusal relationships * Poor compliance or inability to attend follow-up

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As listed by the trial registrant

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

Prosthesis (internal) complications

Contacts and locations

Locations

  • Mansoura University , Faculty Of Dentistry

    Al Mansurah, Dakahlia Governorate, P.O.Box:35516, Egypt