IPS Empress crown system: three-year clinical trial results.
The IPS Empress system is a highly esthetic hot pressed glass ceramic material for fabrication of single crowns. Adhesive cementation of the system not only contributes to the esthetics but is necessary for increased strength of the crown. The purpose of this prospective clinical trials was to evaluate the longevity of 75 adhesively cemented Empress full crowns. An additional aim was to assess the adhesive cementation methodology and potential side effects. At the three-year point, one molar crown fractured for a 1.3 percent failure rate. The resin cementation technique that was employed exhibited a low incidence of microleakage with few clinical side effects. There was a 5.6 percent incidence of post-cementation sensitivity, with all symptoms subsiding by eight weeks. None of the crowns in the study required endodontic therapy.
Clinical Research Center, Oregon Health Sciences University, Portland 97201-3097, USA.
J A
JA
Sorensen
C
C
Choi
M I
MI
Fanuscu
W T
WT
Mito
D000293:Adolescent; D000328:Adult; D000368:Aged; D000538:Aluminum Silicates; D002484:Cementation; D003188:Composite Resins; D003442:Crowns; D003776:Dental Porcelain; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D004955:Esthetics, Dental; D006801:Humans; D008875:Middle Aged; D011446:Prospective Studies; D017797:Prosthesis Coloring; D019231:Tooth Preparation, Prosthodontic / Q000379:methods; D016896:Treatment Outcome
D000538:Aluminum Silicates; D003188:Composite Resins; C075815:IPS-Empress ceramic; D003776:Dental Porcelain