title: A clinical trial of Empress II porcelain inlays luted to vital teeth with a dual-curing adhesive system and a self-curing resin cement.
abstract: OBJECTIVE
  The aim of the study was to clinically evaluate Empress II inlays cemented with a dual-curing bonding agent and a self-curing luting system.
  
  
  METHODS
  Forty patients were selected to receive one Empress II inlay. Empress II is a heat-pressed glass ceramic containing lithium disilicate and lithium orthophosphate crystals, purported to provide higher stress resistance and improved strength. The restorations were placed between March and May 2000. Recalls were performed after 6, 12, 24, and 36 months. At the 3-year recall, 7 patients were lost to follow-up. Inlays were evaluated for postoperative sensitivity, marginal integrity, marginal leakage, color stability, surface staining, retention, and surface crazing (microcracks).
  
  
  RESULTS
  At the 3-year recall, all the restorations were in place and only one showed postoperative sensitivity (at the first recall, 1 week after placement). Only 3 inlays showed slight marginal staining, and 4 inlays showed gaps, with little surface staining or microcracks.
  
  
  CONCLUSIONS
  No inlay debonded or fractured during theobservation period. All the evaluated inlays were in place and acceptable.
authors.affiliation: Department of Dental Materials, University of Siena, Siena, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Fabianelli
authors.forename: Cecilia
authors.initials: C
authors.lastname: Goracci
authors.forename: Egidio
authors.initials: E
authors.lastname: Bertelli
authors.forename: Carel L
authors.initials: CL
authors.lastname: Davidson
authors.forename: Marco
authors.initials: M
authors.lastname: Ferrari
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002484:Cementation / Q000379:methods*; D003116:Color; D003763:Dental Leakage / Q000145:classification; D018772:Dental Marginal Adaptation; D003776:Dental Porcelain / Q000737:chemistry; D017268:Dental Prosthesis Retention; D003807:Dentin Sensitivity / Q000209:etiology; D017220:Dentin-Bonding Agents / Q000737:chemistry; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007284:Inlays; D018020:Lithium Compounds / Q000737:chemistry; D008297:Male; D008689:Methacrylates / Q000737:chemistry; D008875:Middle Aged; D011446:Prospective Studies; D019279:Resin Cements / Q000737:chemistry; D013499:Surface Properties
chemical_list: D017220:Dentin-Bonding Agents; C118557:Empress 2; C420130:Excite cement; D018020:Lithium Compounds; D008689:Methacrylates; D019279:Resin Cements; C502351:multilink adhesive system; D003776:Dental Porcelain