Which root canal filling eases pain best? new study tests three options
NCT ID NCT07603934
First seen Jun 27, 2026 · Last updated Jul 22, 2026 · Updated 2 times
Summary
This study tests whether placing ibuprofen, nitrofurantoin, or calcium hydroxide inside a tooth after root canal treatment can lower pain. About 111 adults with dead nerves in their back teeth will rate their pain on a 0-10 scale. The goal is to find which medication works best to make recovery more comfortable.
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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Early phase 1
The earliest testing in people: a first look at safety, in a very small group.
- Participants
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About 111 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Mar 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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18 to 40 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: 1. Patients with necrotic pulps. 2. Adult, healthy patients, older than 18 years old 3. Males and females. 4. Patient with the ability to understand and use pain scales. 5. Patient who accepts enroll to the study. Exclusion Criteria: 1. Patients' allergies or any other contraindication to any of the medications used. 2. Pregnant and lactating females. 3. Patients have been taking pain medication 12 hours earlier. 4. Patients who have more than one symptomatic mandibular tooth in the same quadrant. 5. Patients with contributory medical history (ASA\>II).
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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 Oral and Dental Medicine, Egyptian Russian University
RECRUITINGCairo, Cairo Governorate, 4450113, Egypt
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