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A post made to measure: can a custom fiber post save damaged front teeth?

NCT ID NCT07827755

Disease control Sponsor: Cairo 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 18, 2026 · Last updated Sep 18, 2026

Summary

Researchers at Cairo University compare two ways to rebuild root canal treated front teeth that have lost one or two side walls. Each participant receives either a custom-fit UHMWPE fiber post, shaped to their canal at the chair, or a standard prefabricated fiber post, both finished with a composite core and crown. The team measures the gap between the post and the remaining root canal filling on X-rays, then checks how well the post and crown stay in place over six months.

What this could mean

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

Active substance
a custom-fit UHMWPE fiber post with a composite core, compared with a prefabricated fiber post
What this could lead to
If the custom-fit post holds better, dentists could rebuild badly damaged front teeth with fewer replacements and retreatments.
What could go wrong
This is a small, short six-month study in one dental school. Fit on an X-ray may not predict how long a restoration lasts, and results may not apply to other teeth or clinics.

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

About 84 people

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

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Mar 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.

Ages

20 to 40 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: * Endodontically treated maxillary anterior teeth (incisors and/or canines) * Presence of 1-2 missing coronal axial walls (mesial, distal, labial, and/or palatal), assessed at the cementoenamel junction (CEJ) * Remaining sound tooth structure meeting minimum ferrule criteria: wall height ≥1.5-2 mm and circumferential thickness ≈1 mm * Adequate root canal filling with no radiographic signs of periapical pathology * Root length and canal morphology suitable for post space preparation * Patients aged 20-40 years * Willing and able to provide informed consent and attend follow-up visits Exclusion Criteria: * Teeth with 3 or more missing coronal axial walls (insufficient ferrule) * Evidence of active periapical pathology, root fracture, or root resorption * Insufficient remaining root length for adequate post retention * Signs of periodontal disease affecting tooth prognosis (e.g., mobility, inadequate periodontal support) * Systemic conditions contraindicating routine dental treatment * Pregnancy (if radiographic follow-up is required) * Inability to attend scheduled follow-up visits

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As listed by the trial registrant

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

Cairo university

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 and phone numbers. 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

  • Faculty of Dentistry Cairo University

    Cairo, Manial, 11553, Egypt