15-Year checkup: do these dental crowns stand the test of time?
NCT ID NCT06898411
First seen Jun 13, 2026 · Last updated Jun 23, 2026 · Updated 1 time
Summary
This study looked at how long single-tooth restorations made with IPS e.max (a type of glass-ceramic) last after being worn for more than 15 years. Researchers examined 56 people who had received these restorations between 2006 and 2010, checking their survival rate and quality. The goal is to understand the long-term durability of these dental materials.
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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.
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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Locations
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Ivoclar Vivadent AG
Schaan, 9494, Liechtenstein
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
IPS e.max (lithium disilicate glass-ceramic) dental restoration
What this could lead to
If successful, this study could confirm that IPS e.max restorations remain durable and functional for over 15 years, supporting their continued use in dentistry.
What could go wrong
This is a small, retrospective study with only 56 participants, all from one clinic. Results may not apply to everyone, and the study does not test new treatments.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.