New spinning tool may beat manual cleaning for kids' tooth infections
NCT ID NCT07472751
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a single rotary file system removes more bacteria from infected baby molars than traditional manual files. Thirty-four children aged 4 to 6 with irreversible pulpitis will have their root canals cleaned using one of the two methods. The main goal is to measure bacterial reduction before and after cleaning, with secondary checks on pain and child behavior.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Rotary file system (AF F One) and manual K-files
- What this could lead to
- If the rotary file works better, it could make root canal treatment for children faster and more effective at removing bacteria.
- What could go wrong
- This is a small, early study with only 34 children, so results may not apply to everyone. The rotary file might not reduce bacteria more than manual files, and pain or behavior issues could affect outcomes.
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
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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 34 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Apr 2026
An estimate. Start dates often move.
- Expected to finish
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Oct 2027
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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4 to 6 years
- Sex
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Anyone
- Healthy volunteers
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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 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: * Children age 4 to 6 years * Medically free children * Cooperative children * Restorable mandibular second primary molars with signs or symptoms of irreversible pulpitis * No internal root resorption on radiograph * No external root resorption on radiograph * No periapical radiolucency * No inter-radicular radiolucency Exclusion Criteria: * Uncooperative children * Children with systemic disease * Children with physical disability * Children with mental disability * Refusal to participate * Inability to attend follow-up visits * Refusal to sign consent form * Previously accessed teeth * Mobile mandibular primary molars * Pain on percussion * Swelling on palpation or in the vestibule
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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 dentistry, Cairo university
Cairo, Egypt, 11411, Egypt
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a Flat-Sided dental file mean less pain after a root canal?
- Can a gentler tooth treatment save painful baby molars?
- Could a new filling material save baby teeth when adult teeth are missing?
- Can a simpler procedure save children's aching baby teeth?