Toothpaste showdown: which paste best repairs tiny tooth cracks?

NCT ID NCT07069218

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests two kinds of toothpaste that contain hydroxyapatite, a mineral that helps rebuild tooth enamel. Forty children and teens with early signs of enamel damage will brush with one of the pastes twice a day for six months. Researchers will measure if the enamel gets stronger and if tooth sensitivity or other issues improve.

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 40 people

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

Started

Jul 2025

Expected to finish

Jun 2026

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

6 to 18 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: * Subjects aged between 6 and 18 years * Ability to understand and follow instructions in Italian or English * Signed written informed consent provided by the parent/legal guardian and assent from the minor * Good cooperation and adherence to clinical instructions * Fully erupted permanent first molars and upper central incisors in good general condition * DIAGNOdent Pen baseline values in the C1 (0-12) or C2 (13-24) range Exclusion Criteria: * DIAGNOdent Pen values greater than 25 * Ongoing systemic antibiotic therapy * Presence of sealants or composite restorations on first permanent molars or upper central incisors * Severe enamel alterations such as molar-incisor hypomineralization (MIH), fluorosis, or extensive white/brown spot lesions * Poor motivation or limited compliance with study procedures

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Conditions

The condition(s) this trial relates to.

Dental Enamel Hypomineralization Dental Plaque dentin sensitivity enamel caries tooth erosion, non-bacterial

As listed by the trial registrant

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

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.

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  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

  • Unit of Orthodontics and Pediatric Dentistry - Section of Dentistry - Department of Clinical, Surgical, Diagnostic and Pediatrics - University of Pavia

    RECRUITING

    Pavia, Lombardy, 27100, Italy

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