Root canal relief? tiny file technique tested for less pain
NCT ID NCT07239752
First seen Nov 20, 2025 · Last updated Jun 24, 2026 · Updated 28 times
Summary
This study will test if a technique called 'apical patency'—gently passing a small file just past the root tip during cleaning—can reduce pain after a root canal. 48 adults with a dead nerve and infection in a back molar will be randomly assigned to receive either this technique or standard cleaning. They will rate their pain at several time points over 72 hours. The goal is to see if this simple change makes a difference in post-treatment discomfort.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Apical patency technique (passing a small file slightly beyond the root tip during root canal cleaning)
What this could lead to
If it works, this could give dentists a simple way to reduce pain after root canal treatment.
What could go wrong
This is a small, early-stage trial with only 48 people, so results may not apply to everyone. The technique might not reduce pain at all.
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.