2Li Q, Ionut 1, Jeff L, etal. Numerical simulation of crack formation in all ceramic dental bridge [J]. Key Eng Mater, 2006, 3(12): 293-298.
3Mosmann T. Rapid choloridemetric assay for cellular growth and survival: application to Proliferation and cyto-toxicity [J~. Immunol Methods, 1983, 63(1) : 55.
4Singh NP. Microgels for estimation of DNA strand breaks, DNA protein crosslinks and apoptosis [J]. Mutation Research, 2000, 455(1/2): 111-127.
5Mollnes TE. Biocompatibility: complement as mediator of tissue damage and as indicator of incompatibility [J]. Exp Clin Immunogenet, 1997, 14(1): 24-29.
6CollinsA R, Ai guoM, Duthie SJ. The kinetes of repair of oxidative DNA damage (strand breaks and oxidized pyrlmidines)in human cells [J~. Mut Res, 1995, 3(36): 69-77.
7Prema K, Vangala V. Benzene and its phenolic metabolites produce oxidative DNA damage in HL60cell in vitro and in the bone marrow in vivo [J]. Cancer Research, 1993, ,53(10) : 1023-1026.
8Winn L M. Homologous recombination initiated by benzene metabolites; a potential role of oxidative stress [J~. Toxicol Sci, 2003, 72(1) :143-149.
