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Can a glowing dye reveal hidden tooth decay?

NCT ID NCT04748913

Diagnosis Sponsor: Universidad Rey Juan Carlos 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 07, 2026 · Last updated Aug 07, 2026

Summary

This study tests whether a special light-based scanner, called DIAGNOcam, can better detect early cavities between teeth when used with a dye. Researchers will compare this method to standard X-rays and a visual-tactile exam. The goal is to see if the dye improves the ability to tell whether a cavity has formed a hole (cavitation), which helps decide the best treatment.

What this could mean

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

Active substance
Near-infrared transillumination with indocyanine green dye (DIAGNOcam)
What this could lead to
If successful, this could lead to more accurate, less invasive detection of early cavities, potentially reducing the need for fillings.
What could go wrong
The dye may not improve detection enough to be clinically useful, and the study is relatively small, so results may not apply broadly.

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

153 people

The number who actually took part.

Started

Nov 2020

Finished

Nov 2023

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

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: * E1, E2 and D1 proximal carious lesions in permanent posterior teeth (E1: outer half of enamel; E2: inner half of enamel; D1: outer half of dentin) Exclusion Criteria: * estructural abnormalities * visible clinical cavitation * restorations on the proximal surfaces * open contact points * overlapping structures on the X-ray that prevent a clear view of the proximal area

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Conditions

The condition(s) this trial relates to.

enamel caries

As listed by the trial registrant

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

Initial proximal caries

Contacts and locations

Locations

  • Santiago De Vega Calleja

    Alcorcón, Madrid, 28922, Spain