[Research on the resin bond durability of glass-infiltrated alumina ceramic].
OBJECTIVE
To analyze the effect of different silane coupling agents on the resin bond durability of glass-infiltrated alumina ceramic. Methods A glass-infiltrated alumina ceramic was silanized or not by three silane coupling agents. The treated ceramic surfaces were bonded with two resin cements. Their micro-bond strength were measured after 0, 30,000 thermal cycles.


RESULTS
Before thermal cycling, resin cement A had lowest bond strength to ceramic, and ceramic treated by silane coupling agent A with two cements had lower bond strength than those treated by silane coupling agent B and C. After thermal cycling, cement A had no bond strength with no treated ceramic, only ceramic treated by silane coupling agent A with two cements had more than 5 MPa bond strength.


CONCLUSIONS
The glass-infiltrated alumina cermaic treated by the silane coupling agent activated by 10-methacryloyloxydecyl-dihydrogen phosphate could obtain better bond durability with different type of resin cements.
Meng
Xiang-feng
XF
Dept. of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing University, Nanjing 210008, China.
Luo
Xiao-ping
XP
Gu
Ning
N
D000537:Aluminum Oxide / Q000737:chemistry*; D002516:Ceramics / Q000737:chemistry*; D001840:Dental Bonding; D005898:Glass / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry*
D019279:Resin Cements; D000537:Aluminum Oxide