title: IPS Empress inlays luted with a self-adhesive resin cement after 1 year.
abstract: OBJECTIVE
  To prospectively compare the clinical performance of two different resin composites for luting IPS Empress inlays and onlays.
  
  
  METHODS
  83 IPS Empress restorations were placed in 30 subjects. All restorations were inserted under rubber dam. 43 inlays/onlays were luted with a self-adhesive resin cement [RelyX Unicem (RX)]. A multistep adhesive (Syntac) was used with Variolink II low viscosity (SV) and served as control (n=40). The restorations were evaluated after 2 weeks: Baseline = 1st recall (R1), after 6 months (R2) and after 1 year (R3) by two calibrated examiners using the modified USPHS criteria.
  
  
  RESULTS
  From R1 to R3, one failure was noticed in the SV group (R2) due to marginal enamel chipping. After 1 year of clinical service, SV revealed significantly better results regarding color match and integrity inlay (Mann-Whitney U-test, P< 0.05). No statistically significant differences were observed between SV and RX for the remaining criteria (Mann-Whitney U-test, P>0.05).
authors.affiliation: Dental Clinic 1-Operative Dentistry and Periodontology, University Medical Center Erlangen, University of Erlangen-Nuremberg, Glueckstrasse 11, D-91054 Erlangen, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Taschner
authors.forename: Roland
authors.initials: R
authors.lastname: Frankenberger
authors.forename: Franklin
authors.initials: F
authors.lastname: García-Godoy
authors.forename: Silke
authors.initials: S
authors.lastname: Rosenbusch
authors.forename: Anselm
authors.initials: A
authors.lastname: Petschelt
authors.forename: Norbert
authors.initials: N
authors.lastname: Krämer
mesh_terms: D000328:Adult; D000538:Aluminum Silicates; D001840:Dental Bonding; D003776:Dental Porcelain; D005260:Female; D006801:Humans; D007284:Inlays; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D019279:Resin Cements; D055815:Young Adult
chemical_list: D000538:Aluminum Silicates; C075815:IPS-Empress ceramic; C483701:Rely X Unicem; D019279:Resin Cements; D003776:Dental Porcelain; C103502:Variolink