Can a paste save infected baby teeth without extraction?
NCT ID NCT07773805
First seen Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time
Summary
This trial tests two different pastes—calcium hydroxide-iodoform and a modified triple antibiotic—used in a procedure called LSTR to treat severely infected baby molars in children aged 4 to 7. The goal is to see which paste better stops infection, relieves pain, and preserves the tooth over a 12-month follow-up. Children with restorable infected lower second baby molars are randomly assigned to one of the two treatments, and success is measured by clinical signs like mobility, swelling, and pain, as well as X-ray findings.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Calcium hydroxide-iodoform paste or modified triple antibiotic paste, used in the LSTR technique for treating infected baby molars.
- What this could lead to
- If one paste proves more effective, it could offer a simpler, less invasive way to save infected baby teeth and prevent early tooth loss in children.
- What could go wrong
- This is a small, early-stage trial, and results may not apply to all cases. There is a risk of allergic reactions or treatment failure, requiring further procedures.
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 50 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
-
Jan 2027
An estimate. Start dates often move.
- Expected to finish
-
Jan 2028
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
-
4 to 7 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 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: * Pediatric patients aged 4-7 years * Positive parental informed consent * Restorable necrotic mandibular second primary molars with peri-radicular/furcal involvement and/or pathologic root resorption (external or internal one-third to two-thirds of the root) * Presence of chronic apical abscess or sinus tract or furcation radiolucency Exclusion Criteria: * Medically compromised patient * Children with a known allergy to any of the components being utilized * Molars near exfoliation * Molars with severely resorbed roots more than two thirds, indicated for extraction * Molar with insufficient coronal structure disabling proper coronal seal * Presence of a periapical or interradicular radiolucent area which could compromise the permanent tooth bud
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Dental caries are added.
By submitting, you agree to our Terms of use
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.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
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.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a squeezable filling match the standard for cavities?
- Could toothbrushing drills in schools cut childhood cavities?
- Can a silver solution replace the drill for tooth decay in cancer patients?
- Can a Zirconia-Enriched filling outlast standard materials for Kids' cavities?
- Could a VR headset replace the Dentist's drill of dread?
- Which filling fights cavity bacteria best in Kids' teeth?