[Study of the strength of Estenia hybrid ceramic material and the effect of reinforcement].
OBJECTIVE
Estenia hybrid ceramic material (Kuraray Co., Osaka, Japan) is a new developed indirect resin composite with the advantages of both ceramic materials and resin composites. The purpose of this study was to evaluate the compressive strength of the crowns and the flexural strength of the three-unit fixed bridges which were made of Estenia hybrid ceramic material.


METHODS
Crowns and three-unit fixed bridges were fabricated with the Estenia hybrid ceramic material. The compressive strength of the crowns and the flexural strength of the three-unit fixed bridges were evaluated. The results was compared with that of other resin composites (Artglass,Solidex and Targis) tested previously in the same way.


RESULTS
The load required to fracture the unreinforced Estenia crowns was 600.20N. The load required to fractured the unreinforced Estenia three-unit fixed bridges was 302.53N.


CONCLUSIONS
The strength of Estenia material was better than other resin composites made of Artglass, Solidex and Targis.
Guo
Yu
Y
Department of Prosthodontics, School of Stomatology, Ninth People's Hospital, Shanghai 200011, China.
Zhang
Jian-Zhong
JZ
Sun
Jian
J
D002516:Ceramics / Q000737:chemistry*; D003188:Composite Resins; D003442:Crowns; D003799:Dental Stress Analysis; D003829:Denture, Partial; D005899:Glass Ionomer Cements; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry*; D011140:Polyurethanes / Q000737:chemistry*; D012823:Silicate Cement
D003188:Composite Resins; D005899:Glass Ionomer Cements; D008689:Methacrylates; D011140:Polyurethanes; C113676:Solidex; C111282:dental polyglass; C091839:urethanetrimethacrylate; D012823:Silicate Cement