Which dental file hurts less? new study aims to find out
NCT ID NCT07250399
First seen Dec 08, 2025 · Last updated Jun 22, 2026 · Updated 43 times
Summary
This study compares two types of dental files used during root canal treatment to see which one causes less pain during and after the procedure. 56 adults with infected upper premolars will be randomly assigned to receive treatment with either a reciprocating or a rotary file system. Pain levels will be measured using a standard scale, and any painkiller use will also be tracked for one week after treatment.
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the original study
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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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Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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from the outpatient clinic of Endodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University
RECRUITINGCairo, Egypt
Contact Phone: •••-•••-•••• Email: •••••@•••••
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
EdgeOne Fire reciprocating file system and Jizai rotary file system
What this could lead to
If one file system causes less pain, dentists may adopt it to make root canals more comfortable for patients.
What could go wrong
This is a small, early-stage trial with only 56 participants, so results may not apply to all patients or tooth types.
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.