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Dental showdown: which crown technique saves Kids' teeth best?

NCT ID NCT05220865

Disease control Sponsor: Ankara Yildirim Beyazıt 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study compared two dental procedures—Hall technique and modified Hall technique—for treating deep cavities in baby molars of 268 children aged 3-12. The goal was to see which method had better clinical and X-ray success. Researchers also looked at how the amount of tooth damage affected treatment outcomes.

What this could mean

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

Active substance
Dental crown procedure (Hall technique or modified Hall technique)
What this could lead to
If successful, this could show which dental procedure works best for treating deep cavities in children's baby teeth, helping dentists choose the most effective approach.
What could go wrong
This is a completed trial comparing two established techniques, so results are already known. The findings may not apply to all children or tooth types, and both procedures carry risks like crown failure or infection.

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

268 people

The number who actually took part.

Started

Feb 2022

Finished

Sep 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

3 to 12 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: * Medically healthy children * Participants attending follow-up appointments * Children having at least one primary molar tooth with deep dentin caries involving occluso proximal surfaces. Tooth inclusion criteria: * Vital pulp with symptom-free or reversible pulpitis * Presence of marginal ridge breakdown and accessible cavity with hand instruments, * Presence of active cavitated carious lesion (Code 3 with Nyvad criteria for caries lesion activity and severity assessment- Nyvad et al., 1999) * Absence of spontaneous or prolonged pain related with irreversible pulpitis * Absence of fistula or abscess near the tooth * Absence of pathological mobility * Absence of pain on percussion * Absence of pulp exposure * Caries lesion located in ½ inner part of dentin radiographically * Presence of sound dentin layer between the deepest part of the carious lesion and the pulp radiographically * Absence of periapical or furcation pathologies on radiographs * Absence of internal and external root resorption on radiographs * More than ½ of root remaining Exclusion Criteria: * Any systemic disease, physical or mental disorder * Children or parents who doesn't accept to participate and sign the informed consent * Clinical or radiographic signs of pulpal or peri-radicular pathology * Caries cavity which cannot be accessible to hand instruments * Physiological root resorption more than 1/2 of the root in primary molars

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Conditions

The condition(s) this trial relates to.

dental caries dentin caries Stomatognathic Diseases Tooth Demineralization tooth disorder tooth resorption

As listed by the trial registrant

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

Dental caries in children Stomatognathic diseases Tooth demineralization Tooth diseases

Contacts and locations

Locations

  • Ankara Yıldırım Beyazıt University Faculty of Dentistry

    Ankara, Turkey (Türkiye)

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