Which root canal filling hurts less? new study aims to find out
NCT ID NCT07310212
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares two common root canal filling techniques—cold lateral condensation and warm vertical obturation—to see which causes less pain afterward. About 80 adults with infected but pain-free teeth will be randomly assigned to one method. Researchers will measure pain levels and patient satisfaction to help dentists choose the best approach for comfort.
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 80 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2024
- 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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18 years and older
- 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.
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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: * Adults aged 18 years or older. * Patients requiring endodontic treatment for single-rooted necrotic teeth. * Radiographic and clinical diagnosis of asymptomatic apical periodontitis. * Ability to understand the study and provide written informed consent. Exclusion Criteria: * Teeth diagnosed with symptomatic apical periodontitis. * Pregnant or lactating women. * Patients with systemic diseases affecting pain perception (e.g., uncontrolled diabetes, chronic pain conditions). * Teeth that have been previously endodontically treated. * Patients taking medications that may influence pain perception (e.g., chronic analgesic or anti-inflammatory drug use). * Periodontally compromised teeth with significant bone loss or mobility.
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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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University of Jordan Hospital
RECRUITINGAmman, Amman Governate, 11942, Jordan
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Could a Nano-Gel inside the tooth silence Post-Root-Canal pain?
- Could fewer files mean less pain after root canals?
- Could cold plasma make root canals less painful?
- Chilling a tooth from the inside: could cold saline ease Post-Root-Canal pain?
- New study tests four rinse methods to ease root canal pain