15-Year checkup: do these dental crowns stand the test of time?

NCT ID NCT06898411

Completed Knowledge-focused Sponsor: Ivoclar Vivadent AG Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

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.

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.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

LONGEVITY SINGLE TOOTH RESTORATION

Contacts and locations

Locations

Ivoclar Vivadent AG

Schaan, 9494, Liechtenstein

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