Can leaving some decay save the tooth? a trial tests two gentle approaches
NCT ID NCT07765810
First seen Aug 14, 2026 · Last updated Aug 14, 2026
Summary
This study compares two conservative methods for treating deep tooth decay that reaches close to the nerve. In one approach, dentists leave softer decayed tissue near the nerve; in the other, they remove more until firmer tissue remains. About 100 patients with deep decay in permanent teeth will receive treatment from supervised dental students. The goal is to see which method better protects the nerve and preserves the tooth, with follow-up checks at 6 and 12 months.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Selective caries removal, either leaving soft dentine or firm/leathery dentine over the pulp, followed by cavity disinfection and adhesive restoration.
- What this could lead to
- If successful, this could help dentists choose a more conservative approach to treating deep decay, reducing the risk of nerve damage and improving tooth preservation.
- What could go wrong
- This is a relatively small study, and results may not apply to all patients. Leaving decay in place carries a small risk of the decay progressing or the nerve becoming irritated.
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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
Locations
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Jordan university of science and Technology
Irbid, 3030, Jordan
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Other studies related to the condition(s) this trial covers.