Flossing face-off: water flosser beats string in kids' plaque battle
NCT ID NCT07469839
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether water flossing or regular string flossing is better at removing dental plaque in children aged 10 to 15. Each child tried both methods on separate visits, and researchers measured plaque levels. The goal was to see which tool keeps kids' teeth cleaner.
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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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55 people
The number who actually took part.
- Started
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Nov 2024
- Finished
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Apr 2025
- 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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10 to 15 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * The inclusion criteria included children aged 10-15 years, medically fit and systemically healthy, with no active orthodontic treatment or space maintainer with no use of any type of dental floss within the previous 24 hours. Exclusion Criteria: * Children with fewer than four posterior proximal contacts were excluded from the study
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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.
Contacts and locations
Locations
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King Abdulaziz University- Peditaric dentistry clinics
Jeddah, Saudi Arabia