Can a smartphone app make teens brush better? new study aims to find out
NCT ID NCT07276191
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study is testing a new mobile app designed to help teenagers in Portugal take better care of their teeth and gums. About 150 teens aged 15 to 18 will use the app alongside regular dental visits, and researchers will check if their brushing habits, plaque levels, and gum health improve compared to teens who don't use the app. The goal is to see if a fun, science-based app can make a real difference in everyday oral care.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 150 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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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
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15 to 19 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * Be aged between 15 and 18 years at baseline. * Be fluent in Portuguese. * Have access to a mobile phone or computer/tablet with internet. * Be willing to participate in the study by providing signed assent/consent. For participants under 18 years old, consent must be signed by a legal guardian. * Use of the app at least twice during the first month of the study. Exclusion Criteria: * Current or previous use of any oral health-related mobile application. * Not being responsible for their own oral hygiene.
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Conditions
The condition(s) this trial relates to.
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.
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The places running it
1 site. The list below names each one and where it is.
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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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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
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Faculty of Dental Medicine, University of Lisbon
RECRUITINGLisbon, Lisbon District, 1600-277, Portugal
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