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New plastic bar for dentures may save jaw bone, study finds

NCT ID NCT07323628

Symptom relief Sponsor: Sherif Aly Sadek 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested two types of bars that connect a lower denture to two implants in the jaw. One bar was made of metal, the other of a flexible plastic called PEEK. Twenty adults who had trouble with their lower denture took part. The goal was to see which bar made patients happier and caused less bone loss around the implants. Results showed both bars worked well, but the PEEK bar led to slightly less bone loss and similar patient satisfaction.

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

20 people

The number who actually took part.

Started

May 2024

Finished

Nov 2025

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

40 to 70 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Adults aged 40 to 70 years * Mandibular single complete denture with complaints of poor retention or stability * Adequate bone volume in the mandibular canine regions to receive two dental implants without the need for bone grafting * Good general health allowing dental implant surgery * Willingness to participate and comply with study procedures and follow-up visits * Signed written informed consent Exclusion Criteria: * Presence of uncontrolled systemic diseases (e.g., uncontrolled diabetes mellitus) * History of head and neck radiotherapy * Metabolic bone diseases or conditions affecting bone healing * Current smokers or tobacco users * Poor oral hygiene or inability to maintain oral hygiene * Active oral infections or untreated periodontal disease * Bruxism or severe parafunctional habits * Previous implant placement in the mandible * Pregnant or lactating women

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Conditions

The condition(s) this trial relates to.

Patient Satisfaction

As listed by the trial registrant

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

Edentulism in lower jaw

Contacts and locations

Locations

  • Nahda University

    Banī Suwayf, Egypt

More trials for these conditions

Other studies related to the condition(s) this trial covers.