Root canal showdown: one visit or two? new study has answers
NCT ID NCT07354373
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at whether a root canal for an infected tooth with an abscess can be done in one visit instead of two. Fifty-nine adults received either a single-visit treatment or a two-visit treatment with a calcium hydroxide medication placed in between. After 12 months, both groups showed similar healing of the infection on X-rays and CT scans. The findings suggest that a single visit may be just as effective, potentially saving patients time and extra appointments.
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 (interim medication)
What this could lead to
If successful, this could show that a single root canal visit is as effective as two visits, saving time and reducing patient discomfort.
What could go wrong
This is a small, completed study with only 59 participants. Results may not apply to all patients, and the treatment is already standard care, so no major breakthrough is expected.
Disclaimer
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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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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.
Contacts and locations
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Locations
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University of California San Francisco School of dentistry
San Francisco, California, 94143, United States