title: [Influence of adhesion on the color of glass infiltrated alumina ceramic restorations].
abstract: OBJECTIVE
  To investigate the effects of luting agent on the final color of glass infiltrated alumina ceramic restorations.
  
  
  METHODS
  12 plate-shaped specimens with 12.5 mm in diameter and 0.5 mm thickness were fabricated from GI-II (color IG2). Vitadur alpha veneering porcelain (color A2) with 1.0 mm thickness was fired to GI- II glass/alumina composite. 12 plate-shaped background specimens simulating the metal alloy post-and-core 12.5 mm in diameter and 2 mm thickness were also made from Ni-Cr alloy. All-ceramic specimens were luted to the metal alloy by Zinc Phosphate cement, glass ionomer cement and composite resin. The color shifts of the specimens were measured by colorimeter.
  
  
  RESULTS
  Luting agents had effect on the final color of restorations. The influence of composite resin was least, followed by glass ionomer cement and Zinc Phosphate cement. The color difference between with and without Zinc Phosphate cement could be identified by the eye.
  
  
  CONCLUSIONS
  To reduce the effect of luting agents, composite resin is recommended to all-ceramic restorations' adhesion.
authors.affiliation: Key Laboratory of Oral Biomedical Engineering, Ministry of Education, Sichuan University, Chengdu 610041, China.
authors.forename: Li
authors.initials: L
authors.lastname: Jiang
authors.forename: Liu
authors.initials: L
authors.lastname: Yang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Xu
authors.forename: Hong-Yu
authors.initials: HY
authors.lastname: Guan
authors.forename: Qian-Bing
authors.initials: QB
authors.lastname: Wan
mesh_terms: D000537:Aluminum Oxide; D002516:Ceramics; D003116:Color; D003188:Composite Resins; D003738:Dental Cements; D003776:Dental Porcelain; D005899:Glass Ionomer Cements; D006801:Humans; D019279:Resin Cements
chemical_list: D003188:Composite Resins; D003738:Dental Cements; D005899:Glass Ionomer Cements; D019279:Resin Cements; C483027:vitadur alpha; D003776:Dental Porcelain; C023506:Glass ceramics; D000537:Aluminum Oxide