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IPS Empress crown system: three-year clinical trial results
J A Sorensen1, C Choi, M I Fanuscu
1Clinical Research Center, Oregon Health Sciences University, Portland 97201-3097, USA.
Journal of the California Dental Association
|August 26, 1998
Summary
Adhesively cemented IPS Empress crowns demonstrate excellent longevity and esthetics for single crowns. This study found a low failure rate and minimal side effects, highlighting the effectiveness of this dental restoration method.
Area of Science:
- Dental Materials Science
- Prosthodontics
- Clinical Dentistry
Background:
- The IPS Empress system is a glass-ceramic material for esthetic single crowns.
- Adhesive cementation is crucial for both the esthetics and strength of these crowns.
Purpose of the Study:
- To evaluate the long-term clinical performance and longevity of adhesively cemented IPS Empress full crowns.
- To assess the adhesive cementation technique and identify potential adverse effects.
Main Methods:
- Prospective clinical trial involving 75 adhesively cemented Empress full crowns.
- Evaluation of crown longevity, cementation methodology, and clinical side effects over a three-year period.
Main Results:
- A low failure rate of 1.3% was observed, with one molar crown fracture at three years.
- The resin cementation technique showed minimal microleakage and few clinical side effects.
- Post-cementation sensitivity occurred in 5.6% of cases, resolving within eight weeks.
Conclusions:
- Adhesive cementation of IPS Empress full crowns provides a durable and esthetic solution for single crown restorations.
- The employed cementation technique is effective, with a low incidence of complications and no need for endodontic therapy in the study group.