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All-ceramic crowns.

C R Lehner¹, P Schärer

¹University of Zurich.

Current Opinion in Dentistry

|June 1, 1992

Summary

This summary is machine-generated.

Dental ceramics show limitations despite good aesthetics. New leucite-reinforced IPS-Empress offers promising in vitro results for dental crowns, but long-term clinical trials are needed for validation.

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Area of Science:

Dental materials science
Biocompatibility and material properties

Background:

All-ceramic dental crowns face limitations affecting durability.
Previous research focused on strengthening mechanisms and fracture toughness of ceramic systems.

Purpose of the Study:

To review recent scientific literature on dental ceramic systems.
To evaluate the properties and potential of the new IPS-Empress leucite-reinforced glass-ceramic.

Main Methods:

Literature review of scientific articles published between November 1990 and December 1991.
Analysis of studies on strengthening mechanisms, fracture toughness, clinical implications, and wear resistance.
Inclusion of in vitro test results for IPS-Empress.

Main Results:

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IPS-Empress, a leucite-reinforced glass-ceramic, exhibits pleasing aesthetics.
Promising in vitro test results for IPS-Empress were reported.
A simple press-molding technique allows fabrication of well-fitting restorations without additional ceramming.

Conclusions:

IPS-Empress shows potential for dental restorations due to its aesthetics and fabrication method.
Long-term clinical trials are essential to validate IPS-Empress performance against existing all-ceramic and metal-ceramic systems.