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A dental showdown: which clip keeps dentures firmly in place?

NCT ID NCT07804823

Disease control Sponsor: Al-Azhar 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 04, 2026 · Last updated Sep 04, 2026

Summary

This trial compares two attachment systems, OT-Equator and Ball and Socket, used to hold a lower denture in place with a single dental implant. Researchers will measure how much force is needed to pull the denture off, along with gum health and bone levels, over 12 months. The goal is to see which system provides more stable and lasting retention for people with no natural teeth.

What this could mean

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

Active substance
OT Equator attachment system versus Ball and Socket attachment system, both used to retain a lower denture on a single dental implant
What this could lead to
If one attachment system proves more durable and stable, it could guide dentists toward a better option for people with full lower dentures, improving comfort and chewing ability.
What could go wrong
This is a small, early-stage comparison with only 18 participants, so results may not apply to everyone. Individual differences in bone quality and healing could also affect outcomes.

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

18 people

The number who actually took part.

Started

Oct 2024

Finished

May 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

50 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: * Completely edentulous patients * Non smokers * Patients free from intra oral diseases that may affect implant overdenture prognosis * Patients free from systemic conditions that may influence bone resorption or implant success * Able and willing to comply with study visits and follow up schedule Exclusion Criteria: * Smokers or tobacco users * Presence of active oral lesions, infections, or mucosal pathology * Systemic diseases affecting bone metabolism (e.g., uncontrolled diabetes, osteoporosis requiring bisphosphonates) * History of head and neck radiation * Severe parafunctional habits (e.g., bruxism) * Inability to attend follow up appointments or provide informed consent

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Conditions

The condition(s) this trial relates to.

anodontia

As listed by the trial registrant

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

Complete edentulism

Contacts and locations

Locations

  • Faculty of Dental Medicine, Al-Azhar University, (Assiut)

    Asyut, Egypt

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