Dental showdown: onlays vs crowns for saving decayed teeth
NCT ID NCT07259265
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This completed study looked at 120 adults with decayed premolars or molars to compare how long onlays and single crowns last, and how well they work. Participants received either a crown or an onlay made from different ceramic materials. The goal was to see which restoration type and material leads to fewer fractures, maintains tooth vitality, and avoids further decay over time.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could help dentists choose the best type of dental restoration (onlay or crown) for decayed back teeth, improving long-term tooth survival.
What could go wrong
This is a completed observational study, so results are already in. However, findings may not apply to all patients or dental practices, and no new treatment is being tested.
Disclaimer
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This is a summary of
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 Geneva
Geneva, Canton of Geneva, 1204, Switzerland