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Dental implant showdown: which zirconia material lasts longer?

NCT ID NCT01974362

Disease control Sponsor: Implantology Institute Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two types of zirconia materials used in full-mouth dental implants: monolithic zirconia (a single, solid ceramic) and zirconia-feldspathic (a ceramic with a porcelain veneer). Researchers will track complications like chipping, cracking, or other issues over at least one year. The goal is to see which material is more durable and requires fewer repairs.

What this could mean

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

Active substance
Monolithic zirconia (a type of ceramic) and zirconia-feldspathic (ceramic with a veneer) dental implant materials
What this could lead to
If successful, this study could help dentists choose a more durable material for full-mouth dental implants, reducing the need for repairs.
What could go wrong
This is a relatively small, single-center study. Results may not apply to all patients or dental practices. Complications like chipping or breakage can still occur with either material.

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 90 people

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

Started

Jan 2014

Expected to finish

Dec 2029

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

Patients from a dental office that did a full-mouth (bimaxillary - maxilla and/or mandible) implant-supported rehabilitation and made the final rehabilitation with either monolithic zirconia or in feldspathic-zirconia

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: * Maxilla and/or Mandible Implant full-mouth restoration * Monolithic ceramic or zirconia-feldspathic restoration * be at least 18 years of age; * present no systemic or local absolute contraindications for endosseous implant placement; * at least 1 Year Follow-up Exclusion Criteria: * the presence of any systemic disease or condition that could compromise postoperative healing or osseointegration. * Not full mouth rehabilitation

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Conditions

The condition(s) this trial relates to.

bone fracture

As listed by the trial registrant

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

Accident caused by broken ceramic Endosseous dental implant failure

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

    ClinicalTrials.gov lists the study team's own contact details, including names. We don't republish those.

    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

  • Artur Simões

    RECRUITING

    Lisbon, Lisbon District, 1070-061, Portugal