[Influence of adhesion on the color of glass infiltrated alumina ceramic restorations].
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.
Jiang
Li
L
Key Laboratory of Oral Biomedical Engineering, Ministry of Education, Sichuan University, Chengdu 610041, China.
Yang
Liu
L
Xu
Qiang
Q
Guan
Hong-Yu
HY
Wan
Qian-Bing
QB
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
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