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Jambu to the rescue: natural film may soothe whitening pain

NCT ID NCT07478640

Symptom relief Sponsor: Universidade Federal do Para 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested a bioadhesive film made from Acmella oleracea (jambu), a plant with natural pain-relieving properties, to reduce tooth sensitivity during teeth whitening. 72 healthy adults received the film, a standard desensitizing gel, or a placebo before bleaching with hydrogen peroxide. The goal was to see if the jambu film could ease discomfort without affecting whitening results.

What this could mean

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

Active substance
Acmella oleracea (jambu) extract in a bioadhesive film
What this could lead to
If it works, this could provide a natural, effective way to reduce pain from teeth whitening, making the process more comfortable.
What could go wrong
This is a small, completed Phase 3 trial with 72 participants. The jambu film may not work better than existing desensitizers, and natural products can sometimes cause allergic reactions.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

72 people

The number who actually took part.

Started

Apr 2024

Finished

Mar 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

18 to 40 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: * Participants must have at least 28 teeth in the cavity * good oral and general health Exclusion Criteria: * active caries or periodontal disease * visible cracks in front teeth upper or lower * with evident malocclusion * restorations and prosthetics in teeth anterior teeth * gastroesophageal disorders * severe internal tooth discoloration (tetracycline , fluorosis or pulped teeth) * dentin exposure in anterior teeth and /or later * parafunctional habits * tooth sensitivity * whitening treatment prior to or undergoing orthodontic treatment * Furthermore, smokers, pregnant or breastfeeding women do not will be included.

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Conditions

The condition(s) this trial relates to.

dentin sensitivity

As listed by the trial registrant

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

Teeth whitening Tooth sensitivity

Contacts and locations

Locations

  • Faculdade de Odontologia da Universidade Federal do Pará

    Belém, Pará, 66075-110, Brazil

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